Coatings SA_Issue 2 I Vol 7 I 2019

Issue 2 | Volume 7 | 2019

SAPMA golf day!

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AND INDUSTRIAL TRADE NEWS

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NESS

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ILDING

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True to purpose, curious by nature

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12 YO U R

Non-compliance could result in jail

D WA R E B U

When taking a BREATH is important!

One wonders why, with modern technology around, some paints still choke a person with foul odour?

Our philosophy is simple: Make it ENVIRONMENTALLY FRIENDLY whatever it takes!

e r a C e W e s u Beca % +27 (0)31 902 1422

www.sancryl.co.za •

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It functions as co-dispersant and enhances the stability and colour development in coatings.

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TYPICAL PROPERTIES Appearance pH

Clear Liquid >13.5

Brookfield Viscosity @ 25°C

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Advantages: • Viscosity stabilization • Mechanical shear stabilization • Colour development • Colour acceptance • Controls flash-rusting • Imparts adhesion Recommended use: Enviromine is recommended for use in a formulation at a dosage of 0.10% – 0.35%. It should be added in the grind stage, it can also be used in the let-down stage for pH or property enhancer.

Enviromine offers excellent Anti-flash rusting properties as illustrated below:

Compatibility: Enviromine has a broad compatibility in paint formulations.

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Enviromine enhances the adhesion of dried film coatings. as illustrated below:

EDITORIAL EDITOR Johann Gerber Tel: 011-713-9042 Email: johann.gerber@newmedia.co.za SUB EDITOR Gill Abrahams Email: gill.abrahams@newmedia.co.za

ontents

LAYOUT & DESIGN Nazreen Bhyat Email: nazreen.bhyat@newmedia.co.za ADVERTISING ADVERTISING EXECUTIVES Natalie Sanders Tel: 082-450-2317 Email: natalies@intekom.co.za

Issue 2 | Volume 7 | 2019

PHOTOGRAPHS

Unless previously agreed in writing, Coatings SA owns all rights to all contributions, whether image or text.

SOURCES Shutterstock, supplied images, editorial staff.

News

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SAPMA AGM

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Savannah company profile

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Excelsior puts staff 1st!

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Mica: Understanding this pigment extender

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Feature: Roof coatings

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Products and raw materials

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ART DIRECTOR David Kyslinger

SAPMA golf day

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MANAGEMENT

Technical

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DISTRIBUTION & SUBSCRIPTIONS Felicity Garbers Email: felicity.garbers@newmedia.co.za UPDATE YOUR DETAILS HERE Email: register@media24.com Web: www.diytradenews.co.za PUBLISHING TEAM GENERAL MANAGER Dev Naidoo PUBLISHING MANAGER Johann Gerber Email: johann.gerber@newmedia.co.za PRODUCTION MANAGER Angela Silver

MANAGING DIRECTOR Aileen Lamb COMMERCIAL DIRECTOR Maria Tiganis BRAND STRATEGY DIRECTOR Andrew Nunneley CHIEF FINANCIAL OFFICER Venette Malone HEAD OF HR Camillah West CEO: MEDIA24 Ishmet Davidson Head Office: New Media, a division of Media24 (Pty) Ltd New Media House, 19 Bree Street, Cape Town PO Box 440, Green Point, Cape Town 8051 Tel: +27 (0)21 417-1111 Web: www.newmedia.co.za

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While precautions have been taken to ensure the accuracy of its contents and information given to readers, neither the editor, publisher, or its agents can accept responsibility for damages or injury which may arise therefrom. All rights reserved. © DIY Trade News.

No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, photocopying, electronic, mechanical or otherwise without the prior written permission of the copyright owners.

Send me!

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ast year, as the African National Congress (ANC) deviated from its path of destruction, the entire nation celebrated as our President, Cyril Ramaphosa, sounded a rallying cry to the citizens of South Africa. He asked them to ‘Send Me’ (a line from the lyrics of ‘Thuma Mina’ by Hugh Masekela,) with promises to fix pressing issues affecting the livelihood of South Africans.

Yesterday, at the SAPMA AGM marked five days since our general elections, and I was saddened by the turnout of the industry. Less than 40% of SAPMA’s members were present.

Let me be frank – AGMs are often some of the most boring of meetings one can attend. However, for an industry facing tough challenges, it remains the best forum to raise concerns, and participate in industry discussions to ensure decisions affecting you and your business are not made without your input – just like the elections, it is your one chance to have your say!

And the real concerns after yesterday’s SAPMA AGM, is that there is a group of 17 companies negotiating at a bargaining forum on behalf of 300 companies within

ed’s note

this industry.

A feedback session by Dr Ivor Blumenthal laid bare the real concerns.

Trade unions are pushing to extend the Johann Gerber agreement of this bargaining council to all companies within a sector – whether you are part of SAPMA or not, whether you were in the conversations or not. Can you afford to not give input on matters which could potentially dictate increases and plant operations of your business?

SAPMA is looking to adopt a memorandum to ensure it, as the representative body of the coatings industry, can negotiate on the behalf of its members and ensure the right decisions are made for all parties involved in the coatings industry.

But, they need your input. On page 12 of this issue we outline the SAPMA memorandum and they ask for feedback – I urge you to get involved in your industry and not turn a blind eye. c

news

Methanol kills 100s – no ban in sight!

The death toll from the consumption of methanol is mounting globally while South Africa still has not implemented long-promised legislation against the use of the deadly substance in paint thinners.

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oluzuko Gwayi, senior policy advisor (director), International Chemicals and Waste Cooperation of the Department of Environmental Affairs stated categorically, almost a year ago, that the government was no longer going to tolerate methanol in thinners and offenders would face prison sentences of up to 10 years or heavy fines. However, Deryck Spence, executive director, SAPMA, says so far Gwayi has failed to meet this important commitment.

Speaking at the Coatings for Africa symposium in May 2018, Gwayi said the draft amendment for the Hazardous Substances Act would decree that the level of lead in paint, previously legislated at 600ppm, would be dropped to 90ppm to fall in line with international standards. A socio-economic impact assessment study (SEIAS) was already underway and the amendment affecting both lead and methanol levels was likely to be promulgated soon, Gwayi promised.

Spence says despite this assurance there has been no noticeable further development to expedite the change in the Hazardous Substances Act. “SAPMA has for the last three years tried to ban the use of methanol in paint thinners. The government should take note of the devastating loss of life experienced in the rest of the world by methanol. It is very likely that illicit liquor is also being produced in South Africa and that unreported methanol deaths are already happening,” he stated.

India has a thriving moonshine industry, and methanoltainted illicit liquor has killed over 2 000 people in the last three decades. In 2015, more than 100 people died

in a Mumbai slum after drinking moonshine. In February this year, at least 99 died and scores were admitted to hospital in northern India after drinking toxic methanol alcohol. In Europe, methanol-laced alcohol has been killing hundreds of people annually with countries such as the Czech Republic, Slovakia, Estonia and Poland particularly involved Deryck Spence. in fighting a booming bootlegging industry which relies heavily on methanol for its deadly product mix.

Spence says these statistics should be of deep concern to the South African government. “The Department of Health some time ago announced that methanol had undergone the necessary Socio-economic Impact Assessment (SEIAS) study and legislation for its banning was with the Department of Monitoring and Evaluation for approval. This gave SAPMA hope that methanol would soon be eradicated from South African retail shelves – but we are still awaiting any meaningful action,” he adds. c For more information, visit www.sapma.org.za

Call for vigilance against dumping

South African coating manufacturers should in the interests of preserving profitability keep a close eye on the increasing level of imports of raw materials, Sanjeev Bhatt, vice chairman of SAPMA, warned at the association’s recent AGM.

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anjeev told the meeting that some South African paint producers had applied for a temporary rebate on the import duty that applied to titanium dioxide, which will assist in lowering the cost of locally manufactured coatings. Solvent-borne resin producers had also applied for duty protection on acrylic resins following the sudden spurt of resin imports

from countries such as Taiwan, Egypt and the UAE. “I would urge coatings manufacturers to keep a close watch on imported products landing in South Africa to ensure that the volume of cheap and substandard imports is controlled,” urged Sanjeev.

SAPMA has already in the past expressed concern about the lack of suitable import duty protection

6 | Coatings SA

to prevent the dumping of raw materials and resins, and reminded the DTI that any product imported into SA would have to meet the compulsory specifications of the National Regulator for Compulsory Specifications (NRCS). SAPMA implored the DTI to utilise the services of the NRCS to control any imports that could threaten the survival of the industry. c

news

SAPMA & Corrosion Institute join forces The SA Paint Manufacturers Association (SAPMA) and the Corrosion Institute of Southern Africa (CorrISA) have signed a Memorandum of Understanding (MoU) that will add substantial benefits to the training offered by both industry representative bodies.

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he MoU was signed recently by Deryck Spence, executive director of SAPMA, and Hendrick Rasebopye, executive director of CorrISA. Spence says CorrISA will now incorporate its own training into SAPMA’s SETA-accredited paint application courses so that CorrISA, which does not hold government accreditation for its training, can offer its members the opportunity to recover funds spent on skills development training from the government.

“The existing SAPMA paint application courses will be augmented and modified to include anti-corrosion and spray application training for industrial projects obtained from the extensive curriculum of CorrISA training programmes. Anticorrosion measures are not covered in depth in SAPMA courses so this broadens the scope of the SAPMA paint application tuition. CorrISA, on the other hand, benefits from now having accreditation for its training courses,” Spence explains.

SA’s official coatings and corrosion controlling industries’ training has been boosted through a collaborative initiative signed recently.

For SAPMA, another major benefit is that CorrISA will now allow SAPMA to carry out training at the well-equipped training and laboratory facilities operated by CorrISA. SAPMA was in urgent need for such a training venue. “Another benefit is dual membership: SAPMA members will now also become CorrISA members, and vice versa,” Spence adds. c

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news

Evonik agrees to sell

Evonik signed an agreement to sell its methacrylates business to Advent International for €3 billion. The transaction is subject to approval by the authorities in several countries and is expected to close in the third quarter of this year.

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he methacrylates business has 18 production sites and 3 900 employees worldwide. The transaction comprises the methacrylates, acrylic products and CyPlus business lines, and some of the methacrylate resins activities. Evonik placed these operations on the market as part of its systematic strategy of sharpening its focus on specialty chemicals, which are less cyclical. Private equity company Advent International is one of the most experienced financial investors in the chemical industry in the world, with more than 30 investments over three decades.

The net purchase price (equity value) can be calculated after deductions, made up primarily of pension obligations of around €500 million. The company will use the sale proceeds to strengthen its balance sheet and, above all, for targeted growth projects. That includes funding the purchase price of the US company PeroxyChem, which Evonik plans to close this year. In addition, some funds will be used to strengthen the present specialty chemicals portfolio, for example, by building a new polyamide 12 plant in Marl, Germany. These businesses generate an attractive margin and an above-average cash flow.

Also in 2019 and even without the contribution from the methacrylates business, Evonik will be able to cover the dividend payment out of its strong free cash flow.

“This transaction will fuel the growth of the methacrylates business and allow Evonik to focus more on its core business, specialty chemicals. The deal further strengthens the position of the company globally, and as a region, we have taken all the necessary preparations for the next steps to ensure a smooth implementation,” said Hendrik Shoenfelder, regional president for Evonik Middle East and Africa. c

Evonik is one of the world leaders in specialty chemicals. The focus on more specialty businesses, customer-oriented innovative prowess and a trustful and performance-oriented corporate culture form the heart of Evonik’s corporate s trategy. They are the lever for profitable growth and a sustained increase in the value of the company. Evonik benefits specifically from its customer proximity and leading market positions.

Evonik is active in over 100 countries around the world with more than 36 000 employees.

To know more about Evonik Middle East and Africa, please visit https://mea.evonik.com/

Members of SAPMA’s newly-elected Executive Committee posed for a group photo after the SAPMA annual general meeting in Pretoria

PICTURED FROM LEFT: Shaun Benn (ICI Dulux), Salvan Govender (Medal Paints), Bobby Bhugwandin (Kansai Plascon), Danny Grady (OCCA), Patrick Johnson (Stonecor), Sanjeev Bhatt (Synthetic Polymers) Madeleine du Toit (PPF Prominent Paints), Graham Duk (BAMR), Terry Ashmore (Honorary Member), Lynn de Beer (Nampak), Phillip Green (Mirmac), Aggie Argyrou (Warrior Paints & Coatings), Jag Kalyan (Ferro Coating Resins), and Stephen Reinecke (Promac) Paints).

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01 2017

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These quinacridone pigments produce brilliant colors and are on par with petrochemical-based pigments regarding durability. Our quinacridone pigments are used in applications such as automotive, industrial and decorative coatings.

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news

Turtle trucks!

Look out for Polyoak’s new ‘Turtle Trucks’ which promote recycling for a cleaner ocean.

Polyoak Packaging is intensifying its commitment to extended producer responsibility, by partnering with its customers to optimise the recyclability of its packaging. Design, functionality, material choice, decoration, closures and on-pack communications all need to be taken into careful consideration, to deliver a truly recyclable pack.

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critical barrier to recycling in South Africa is the dire absence of essential waste collection services. For recycling to be most effective, separation of waste at source needs to improve. The problem, however, is that all too often waste does not even reach landfill, never mind recycling sorting centres, as it lies around as litter. This litter is invariably swept into our rivers by the wind, rain and floodwaters. Ultimately it ends up polluting our oceans.

Packaging serves many valuable purposes in that it protects products, prevents food waste and makes life easier and more convenient. There needs to be more focus on the development of infrastructure to collect and manage waste more effectively.

South Africa is ranked 11th globally for mismanaging its waste. According to Stats SA, an estimated 6.4 million

(44%) South African households have no refuse removal, contributing to illegal dumping and our litter problem . Municipalities have failed in their duty to provide its citizens with proper waste collection services.

“Polyoak is passionate about its commitment to the environment. Plastic bottles do not belong in the ocean.

We should be doing everything we can to stop litter through better waste collection, to facilitate recycling of something as functional and valuable as plastic,” says Jeremy Mackintosh, managing director from Polyoak Group.

In a bid to help communicate this important message, and address widespread misinformation about plastic, Polyoak decided to utilise its trucks more effectively as moving billboards, by giving some of the trucks in its fleet a design facelift. The new design features an idyllic underwater

10 | Coatings SA

scene with a turtle swimming by serenely, unhindered by discarded fishing gear (which comprises 46% of all ocean plastic). The accompanying strapline explains that Polyoak’s packaging is recyclable, meaning that it should not end up as litter in the ocean.

We all need to do our bit to make sure that we dispose of our waste responsibly and recycle wherever possible to support the circular economy.

Polyoak’s trucks have always been highly recognisable on the road with their iconic oak leaf design and Tidy Man symbol. Now, each region features a few of these special ‘Turtle Trucks’, as they have affectionately become known.

As a member of the Global Plastics Associations for Solutions on Marine Litter, Polyoak wanted to highlight that plastic does not belong in the ocean and that more needs to be done to prevent litter and improve recycling. c

GE N A CH

, ADAPT & ASSIM IL A TE

The polymer that creates colour Synthetic Polymers produces high-quality polymers for various myriad sectors such as decorative coatings, automotive coating, medium to heavy industrial coating and wood coating etc. Solvent based polymers are Synthetic Polymers core focus; however, our plant also has the capability of producing water-based polymers. A wide variety of resins including acrylics, aminos, saturated polyesters and the more popular alkyd resins as well as some specialist resins are produced using the strictest quality standards in our plant. Research and development take place in our state-of-the-art laboratory with the latest equipment and highly qualified polymer chemists. Convenient delivery with our twenty-metric ton bulk delivery vehicle with lead times between twenty-four and seventy-two hours.

• Long oil alkyds • Medium oil alkyds • Short oil alkyds • Short & Medium chain stopped alkyds • Urethane alkyds & Oils • Styrenated alkyds • Hydroxy functional acrylics • Thermoplastic acrylics • Specialty alkyds • Amino resins • Thermoset acrylics • Saturated oil free polyesters

010 596 4444 | sgb@syntheticpolymers.co.za | www.syntheticpolymers.co.za

news

Non-compliance in the coatings sector could mean jail

The chemical industry, its suppliers and paint manufacturers may soon find their businesses being criminally charged for non-compliance in meeting Bargaining Council requirements.

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t the recently concluded SAPMA AGM, Dr Ivor Blumenthal, CEO of ArkKonsult, explained what has been happening at the National Bargaining Council for the Chemical Industry between organised business and organised labour (trade unions) and the severe impact these discussions will have for all businesses in the coatings sector.

At this moment, the agreements and discussions at the National Bargaining Council only pertain to members of the Surface Coatings Associations (SCA), which was established by SAPMA as an employer association to represent the interests of SAPMA’s members on this council.

The SCA is only active in the Industrial Chemical Chamber and not in the Chemically Related Consumer Good Chamber, and only has 17 members.

Currently, the following discussions only apply to these 17 companies.

The areas covered are: • Wages • Some conditions of employment • Dispute resolution.

Areas which are not covered are: • Plant-based bargaining agreements items • Pension fund matters • Medical aid matters.

Many companies are taking a wait and see approach and not actively involving their businesses to ensure their business’ needs are catered for. As Dr Blumenthal rightly indicated, “If you are not a member of any of the parties to the Bargaining Council, then you are not subject to the agreement entered into by the parties and administered by the Council.”

However, both Organised Business and Labour have indicated their intention to apply to the Minister to extend the current agreement to non-parties. Non-Parties are those companies, which are not members

of any of the Associations which are in the Bargaining Council but which operate in any of the industries or associated industries covered by the Bargaining Council.

When the Minister of Labour extends a Bargaining Council Agreement to cover companies which are not members: • Those companies have no representation on the Bargaining Council in-terms of policies or rules • Those companies are fully covered by all of the provisions and requirements of that Council Agreement. Provisions set usually by large companies in a sector, who are members of one of the Associations.

Non-Compliance with Bargaining Council requirements will be criminalised.

The current Bargaining Council Agreement ends in June 2019 and is being re-negotiated by 17 companies from the Paint Sector, together with representatives from the other Industries.

The current demands from trade unions are: • 20% wage increases across the board • Multi-year agreements – 2-3 years or more • No distinction between large and small companies or between industries and chambers • Multiple conditions of employment such as transport allowances, and many other matters which they want to negotiate in the agreement on a collective level.

“If Business ends up entering into an agreement with the Trade Unions, which will serve as the blueprint for the Bargaining Council activities for the next three years, and that agreement is extended to cover all non-parties, every company – small, medium and large will be required to comply and implement the agreement in their workplaces, without having had any say in what the

12 | Coatings SA

policies of the council should be, what exemptions and considerations, should be implemented for small, medium and large businesses, and whether that agreement should be for a single year or for multiple years,” explained Dr Blumenthal.

As such, SAPMA urges its members to send commentary on the following mandate: The new agreement is already 1 done-and-dusted and for this reason SAPMA wants the existing SCA members to be solely responsible for implementing what is agreed-to for 2019-2020 and for continuing to fund the SCA with 2019-2020 membership fees.

Instead of only 17 companies being SCA Members, SAPMA wants all SAPMA members to automatically be SCA members.

If you are a SAPMA Member, then for labour relations purposes you automatically belong to the Surface Coatings Association from 2020 and are covered by the terms of the agreement.

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SAPMA wants to make it clear to the NBCCI that from 2020, the SCA reserves the right to extract itself from the existing agreement or to request significant amendments to be negotiated in this agreement, making allowances for the extended SCA Membership and the fact that as small and medium-sized businesses, their realities and priorities are different.

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In the SCA we want every Member to be a member in one of three categories based on the number of employees: Category 1: to 100 employees (R100 per month membership fee); Category 2: to 250 employees (R150 per month membership fee); Category 3: 251+ employees (R300 per month membership fee).

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news 5

SAPMA Membership Fee’s will be adjusted to incorporate the SCA Membership Fee.

Coatings industry

All companies irrespective of the category of membership will have one vote and carry equal weight within the SCA.

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reflects on tough year

SAPMA wants a mandate to negotiate a special dispensation in the Bargaining Council Agreement for the paint sector relating not only to industrial chemicals, but also to the Chamber for Chemical Related Consumer Goods – Retail.

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SAPMA wants a mandate to broker all exemption applications to the Bargaining Council on-behalf of SAPMA members to ensure compliance procedurally and the necessary attention from the Bargaining Council itself.

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The South African coatings industry has experienced a challenging year as a result of escalating raw material and electricity tariffs, the national economic slump and other disruptive factors such as load shedding, Aggie Argyrou, chairman of the SA Paint Manufacturing Association (SAPMA), told the association’s AGM in Pretoria.

SAPMA wants a mandate to negotiate that the Bargaining Council offers training for paint-specific commissioners for the purpose of dispute resolution - creating conciliation and arbitration commissioner panellists from within the paint sector.

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SAPMA seeks a mandate to negotiate an enforceable peace obligation into the Agreement for the period of the Agreement preventing any form of Industrial Action not contemplated in the agreement.

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SAPMA seeks a mandate to establish an SCA Management Division within SAPMA and ensure that it runs smoothly and effectively among all SAPMA members.

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SAPMA wants a mandate to consider withdrawing from the Bargaining Council should we not be able to achieve consensus on the redevelopment and positioning of the SCA within the existing employer caucus or in establishing a new agreement with the Bargaining Council itself.

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SAPMA urgently asks for comment on the proposed mandate.

Email tara@sapma.org.za For more information from Dr Blumenthal, visit arkkonsult.com *CREDIT: This article was compiled from the slide presentation made by Dr Ivor Blumenthal.

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“

Aggie Argyrou, chairman of SAPMA, urged members to place more emphasis on staff training in future at the SAPMA AGM.

ransport costs were negatively affected by the rising price of fuel, the depreciation of the rand, and the difficulty in recovering excess costs from already financially struggling consumers. My experience after 31 years in the coatings industry is that DIY home improvement paint sales are invariably one of the first market categories to show a decline when the economy is not doing well,” Argyrou, who is a director of Warrior Paints, stated in his chairman’s report.

He is more optimistic aboaut business prospects for the year ahead and urged SAPMA members to place more emphasis on the training of staff, stressing that every training programme offered by SAPMA was now accredited with the various Sector Education and Training Authorities (SETAs) and government funded. “The programmes are also funded in terms of BBBEE training expenditure for the development and transformation of employees. So, there is absolutely no reason for any SAPMA member to say they cannot afford the training of staff as the costs are refundable,” Argyrou added.

13 | Coatings SA

news

Progress on technical issues

SAPMA is involved in handling several key technical issues facing the coatings industry, SAPMA Technical Committee chairperson, Bobby Bhugwandin, told the association’s annual general meeting in Pretoria.

Bobby’s report to the AGM focussed on four on-going issues: • Dealing with the Department of Agriculture, Fisheries and Forestry (DAFF) regarding registration and labelling • Progress in dealings with the South African Bureau of Standards (SABS) regarding independent testing • The long-standing and challenging dealings with government about lead content in paint • The quest for a recognised Volatile Organic Content (VOC) limit in coatings.

Bobby told the meeting that DAFF is insisting that any paint that makes claims to control the environment with regards to bacteria, yeast, moulds, insects etc should fall within Act 36 of 1947 – and should therefore require registration and labelling.

“SAPMA has gained some ground in convincing DAFF that preservatives used for self-preservation of the product do not require registration or labelling. But legislation still decrees that any product claims relating to controlling of organisms in the environment does need registration.”

Bobby said the SABS had taken heed of industry’s call for independent testing and the gap left by the SABS when it stopped testing product, and the SAPMA Technical Committee was invited to the SABS new paint testing laboratory. SABS seems to have taken us seriously and have invested in the required resources. The labs are in a state of accreditation expected to be finalised by mid-year.Road marking paints would be among the first paints tested again and SABS is looking into re-certifying older certificates that lapsed in 2015 when the SABS stopped testing. “The recommendation from SAPMA is that certificates that were

‘Bhugwandin’: It’s been a busy

and challenging year for SAPMA’s valid until 2015 should be re-instated. SABS will review Technical Committee, Bobby Bhhugwandin told the recent and advise a final decision.”

SAPMA AGM. The SAPMA Technical Committee remains an active member of the government’s “Lead in Paint Committee” and represents the paint manufacturer’s interests in this upcoming legislation. Several meetings were held during 2018 with a proposed sunset date for the current 600ppm level being 31 December 2019.

“We are most concerned with the proposed labelling and testing components and feel that labelling should only be compulsory for paints that have historically contained lead such as alkyd enamels, Industrial, protective coatings and road marking paints. Decorative water-based paints have been lead-free for almost 40 years and should be exempt from new labelling laws. We have also been informed that current labelling claims such as Lead Free, Lead Safe, and No Added Lead will no longer be allowed and must be replaced with contains <90ppm lead – the final wording is still being debated.”

Bobby told the AGM there had been several requests from member companies for guidance on VOC limits for South African manufacturers. South Africa does not have standards for VOCs nor the required accredited laboratories to test and provide independent certification.

“The SAPMA Technical Committee has engaged with the SABS to recommend the adoption of the Green Building Council of South Africa (GBCSA) VOC limits. This proposal is being reviewed by the SABS and we have also asked SABS to obtain accreditation for itself for testing VOCs to play the role of an independent accredited testing body,” he added. c

New MANCO member elected Aggie Argyrou, chairman of SAPMA, welcomes Stephen Reinecke (right), co-founder of Promac Paints, to his new role as member of the association’s Management Committee. Also pictured (from left) are the other two MANCO members: Deryck Spence, SAPMA executive director; and Sanjeev Bhatt, SAPMA vice-chairman. Aggie and Sanjeev were re-elected as SAPMA chairman and vice-chairman, respectively, at the AGM.

14 | Coatings SA

The polymer that creates colour Synthetic Polymers produces high-quality polymers for various myriad sectors such as decorative coatings, automotive coating, medium to heavy industrial coating and wood coating etc. Solvent based polymers are Synthetic Polymers core focus; however, our plant also has the capability of producing water-based polymers. A wide variety of resins including acrylics, aminos, saturated polyesters and the more popular alkyd resins as well as some specialist resins are produced using the strictest quality standards in our plant. Research and development take place in our state-of-the-art laboratory with the latest equipment and highly qualified polymer chemists. Convenient delivery with our twenty-metric ton bulk delivery vehicle with lead times between twenty-four and seventy-two hours.

• Long oil alkyds • Medium oil alkyds • Short oil alkyds • Short & Medium chain stopped alkyds • Urethane alkyds & Oils • Styrenated alkyds • Hydroxy functional acrylics • Thermoplastic acrylics • Specialty alkyds • Amino resins • Thermoset acrylics • Saturated oil free polyesters

010 596 4444 | sgb@syntheticpolymers.co.za | www.syntheticpolymers.co.za

company profile

True to purpose, curious by nature Founded in 1990, Savannah has evolved over the past 30 years into a leading supplier of quality ingredients to manufacturers of every day products. From food to personal care and, increasingly – to coatings!

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ts core philosophy sets it apart from other ingredient suppliers.

From start-up, Savannah has stayed true to its purpose, with defining values: • Curious by nature, keeping them learning and improving to remain relevant; • A Can-do attitude, relating to responsiveness and an enthusiastic approach; and • Collaboration - focused on constructive connections that yield value for all.

Savannah is driven by the mantra: “high quality, high performance”; its partnerships focus on the expectations of its customers – basically translating into “good old-fashioned service”!

Since the business’s inception, it has continued to evolve and grow. Today, Savannah boasts divisions adding value to consumers’ every-day lives: FOOD: Supplying food manufacturers with quality ingredients to create the taste, texture, performance and appearance needed for their food and nutritional end-products – “Ingredients to create brilliance”!

PERSONAL CARE: Inspiration for cutting-edge technology with sensory expertise, which enables manufacturers to set their products apart. From basic ingredients to specialty actives for numerous personal care applications.

HEALTH CARE AND NUTRITION: High quality ingredients for the wellness industries, from class-leading principals with support via in-house product specialists.

HOME CARE AND INDUSTRIAL: Savannah supplies speciçality chemicals for the homecare and industrial cleaning sectors, including surfactants, emulsifiers, additives and preservative systems. Along with high

quality products, the company’s value added services include formulation advice, ideas and documentation support for the following key application areas: • Dishwashing • Floor care • Hygiene • Industrial cleaning • Laundry • Paint & Coatings • Water treatment • Metal refining.

Savannah represents global winners – raw material manufacturers who provide technical support for their products, along with reliability and consistency, sustainability and proven quality.

In this context, the company was recently appointed as the exclusive distributor for US-based ANGUS ® Chemical Company. This exciting development presents the business with many new opportunities.

Central to this is the ability to consolidate and extend its footprint and product offering in the paint and coatings industries, along with other industrial applications.

Savannah believes it can offer ingredient solutions with multifunctional benefits. “The coatings industry is very important to us in 2019 and beyond. The partnership with Angus boosts the ingredient basket we are developing, with the idea of assisting the paints and coatings industry with their ingredient solutions needs,” says Savannah Business Manager, Phillip Cilliers.

Driving solutions along with its suppliers, is what Savannah does at its customers. Innovating around these ingredient solutions so that coatings manufacturers can overcome the challenges inherent in the industry, and formulate high quality products.

For more information, contact Savannah at www.savannah.co.za.

THE SAVANNAH EDGE HOW SAVANNAH DIFFERS FROM OTHER SUPPLIERS? • Offering a value-driven ingredients package that improves the lives of its customers through being constructive, synergistic and well implemented.

• Allowing manufacturers more time elsewhere, through trusting Savannah with their raw material requirements – and with time being so precious, how valuable is that? This value extends further, where the right ingredients can make the difference between ordinary and brilliant.

• The best ingredients at competitive prices, support systems that make sense for manufacturers, and a proven product development capability that sets Savannah apart – an ideal partnership for ingredient success in an ever-tougher market!

PRODUCTS Savannah has a range of products focused on the local coatings industry from preservative systems, a Rheology modifier and certain surfactants, as well as: PRODUCT: AMP-95 AMP-95™ is the product name under which Angus markets 2-amino-2-methyl1-propanol containing 5% added water.

This colourless, mobile liquid with a relatively low viscosity remains liquid at temperatures above -2°C to permit easy handling.

AMP-95 is a highy efficient codispersant for pigments, and contributes pH stability, low odour, and anticorrosive properties; furthermore, it promotes acceptance of colourants. continues on page 20

16 | Coatings SA

LET’S ANSWER YOUR Solvay is the leading global supplier of emulsifiers, specialty monomers and specialty additives to the coating Industry. For more than 40 years, we have been committed to providing leading edge solutions to this industry.

Our portfolio has evolved into the most comprehensive range of products addressing formulation challenges and more importantly enabling customers to create tomorrow’s performance requirements today.

Solvay supports customers with a broad range of sustainable solutions and services including products optimized around criteria such as biodegradability, eco-toxicity, VOC content, and percentage of renewable materials.

Our APE-free surfactant portfolio covers all chemistries from nonionics (RHODASURF®), to anionics like alkyl sulfonates (RHODACAL®), alkyl ether sulfates (RHODAPEX®), sulfosuccinates (GEROPON®), phosphate esters (RHODAFAC®) and formulated blends (ABEX®).

Our dedicated specialty monomer portfolio (SIPOMER®) brings functionality and boosts binder performance to higher levels. Whether seeking to improve substrate wetting, adhesion to different substrates, emulsion stability or simply demand higher film performance, such as high scrub, stain or water resistance.

Our comprehensive line of wetting and dispersing agents are specifically designed for waterborne coatings systems maximizing color strength by improved wetting, dispersing, compatibility and stabilizing both organic and inorganic pigment dispersions in various coatings and inks systems.

NEEDS! Binder Solutions

Performance Solutions

Color Solutions

Resin

Coatings

Colorant

A NEED Process b Particle size control b Low foam b Clean process, lower grit b Salt Stability b Mechanical Stability b Heat/FT Stability

Mechanical Properties b Cohesive strength b Peel & Shear b Glass Transition

Surface Properties b Improved Scrub b Low Water Sensitivity b Block Resistance b Stain Resistance b Scratch Resistance b Corrosion Resistance b Rheology Control b Workability

Adhesion b Wet Adhesion b Adhesion to Metal & Pigment b Glass b Concrete b Wood b Old solvent borne alkyd

Color b Compatibility b Stability b Color development b Color acceptance

Air Quality b VOC b SVOC b Air emission b Labelling b Formaldehyde free b Ecolabel compliant

A SOLUTION Sipomer® Functional monomers to boost adhesion, water resistance, corrosion resistance, scrub Abex®, Rhodafac®, AEROSOL® Specialty emulsifiers

Rhodoline® FT 100E, FT 100XTrim Freeze thaw stabilizer

Rhodoline® 3000 series, WA 1801 E Colorants wetting & dispersing agents

Rhodoline® OTE 600 Workability & open time extender

Rhodoline® 4000 series, WA 265N Compatibilizer, co-dispersing agents

Rhodiasolv® DIB High boiling point coalescent

Rhodoline® 103, 271 & 111E Inorganic dispersing agents

Contact us: Solomon L. Lamola Solvay Polymers and Chemicals South Africa (Pty) Ltd T: +27 12 349 5150 - M: +27 63 502 1621 www.solvaycoatings.com C102 The Woods, 41 Dehavilland Cresc | Persequor Park, 0020, Pretoria

company profile continued from page 16

Polyethylene and wax: AMP-95 is an effective emulsifier for polyethylene and wax by either the normal emulsification techniques or those requiring pressure.

Waterborne coatings: AMP-95 is a highy efficient amino alcohol for neutralising acid-functional resins to make them suitable for use in waterborne coatings and other aqueous applications.

Resulting coatings formulations exhibit higher gloss and greater water resistance than formulations based on other neutralising amino alcohols.

Boiler water systems: Corrosion in boiler water systems can be controlled successfully by use of AMP-95 as the amino alcohol additive to remove dissolved CO2.

Metalworking fluids: AMP-95 is a high-performance, multifunctional additive for metalworking fluids. It is a highly efficient neutraliser and pH adjuster for use in fluid concentrates and for tank-side pH control. The use of AMP-95 will often

improve the biostability of these fluids, which can result in longer fluid life.

AMP-95 is one of the least aggressive amines toward the cobalt binder in carbide tooling, compared to other typically used commodities. AMP-95 also enhances the performance of certain approved biocides, while reducing levels of airborne formaldehyde. AMP-95 does not contribute to ammonia release as do other amines.

Aqueous solutions: AMP-95 functions in dilute aqueous solutions containing small amounts of formaldehyde, to scavenge that which otherwise might be released into the atmosphere.

PRODUCT: AEPD Vox1000 AEPD® VOX 1000 Neutralizing Amine is a multifunctional additive for low-odour, low-VOC (volatile organic compound) interior water-based paints. Its very mild odour, high boiling point and low vapour pressure make it the ideal formulating tool for those paint producers needing to comply with EU Directive 2004/42/EC. Adding AEPD VOX 1000 Neutralizing

20 | Coatings SA

Amine to the grind will adjust and control pH, while improving pigment dispersion, resulting in lower primary dispersant levels. It will virtually eliminate amine or ammonia type odours.

AEPD VOX 1000 Neutralizing Amine is a distinct Angus amino alcohol that is chemically similar to AMP® (2-amino2-methyl-1-propanol), boasting an additional hydroxyl functional group that allows for improved freeze/thaw resistance.

When used as a co-dispersant, AEPD VOX 1000 can help reduce viscosity and primary dispersant levels. This is shown in the following experiment where the lowest viscosity of the titanium dioxide slurry is reached with a combination of a polyacrylate anionic dispersant and AEPD VOX 1000 Neutralizing Amine. c

Savannah represents global winners – raw material manufacturers who provide technical support for their products, along with reliability and consistency, sustainability and proven quality

company profile

Excelsior puts staff 1st!

Major healt h and safety investment

by Excelsio r Paints ensu res that the safety of its workforce comes first.

B

ased in the west of Johannesburg, this family-run business prides itself on its hands-on work ethic, passion and uncompromising quality of its product. In recent years Excelsior has evolved in several phases, which included upgrades to its manufacturing and expansion of its facilities.

The company has made substantial investments in facilities and paint technologies over time. Its 1.4 hectare factory in Industria West and its second 2 500m2 factory in Stormill continue to operate daily and can accommodate customer’s product requests within an impressive ‘factory-floor-to-dealer-door’ turnaround time. The company recently invested in upgrades to its plant and facilities.

“We have undergone massive upgrades in terms of

health and safety compliance that cost a lot that doesn’t necessarily make money, but is an investment for the future of the company and its workers,” says Guy Lawson, managing director, Excelsior Paints.

Properly following the bylaws and environmental laws to the tee, several million rand was spent to, among many things, continually monitor and test the quality of air in the working environment, improve ventilation in the solvent-based factory, install latest specification fire and smoke detection units, also imported gas detection units, which monitors the build-up of solvents and build an explosion proof flammable store (fire containing-unit) to the highest local and international standards.

“When you make solvent based products, the fumes are heavier than air and settle just off the ground. This causes a fire risk and the fumes are also noxious. Because the municipal water supply is so unreliable, to comply we have had to install two 500 000l tanks filled with water. One million litres of water can be pumped through the sprinkler system in 45 minutes to dose any fire threat in the factory,” says Lawson.

“It is up to us as business owners to make sure we understand all the laws that pertain to our industry and be ethical when implementing them and that is exactly what we did. South Africa is not a first world country, but in certain instances it is important to behave like a first world country and when it comes to safety of your staff it is paramount,” says Lawson. c

21 | Coatings SA

product feature

Mica - understanding this pigment extender

Mica, or as it is sometimes known, Muscovite Mica (the original deposits came from Russia), is a lamella or plate like material, which is chemically potassium aluminium silicate that is normally off white or grey and has a definite glitter or mother of pearl effect when added to a coating.

Mica is used as a pigment extender and is tough, flexible and transparent, and its toughness improves paint integrity and durability. In layman’s terms, it improves flexibility and prevents shrinkage and sheering of a coating. It further enhances the final paint product increasing the decorative effects and design of the product. By Philip Green, Mirmac Paint & Research.

M

ica is used in joining fillers or compounds for the joints between gypsum filled wall boards. The product gives strength, flexibility and longer workability to the filler or compound.

Its lamellar or platelet nature is used in primers, under coats and roof paints to improve water resistance and flexibility without sacrificing durability.

Again, due to its plate like structure it is used in textured finishes to provide flexibility and water resistance without adversely affecting other properties such as durability. One major paint company used the tag line with Mica for stretch for its very popular textured finish.

Possible problems that can occur when using Mica in paints: • Difficult to touch up as different

application techniques orientate the Mica platelets in different ways thus giving different textures and pearl effects and thus the colour looks different. This is especially noticeable when trying to touch up textured finishes and roof paints, which is known as windowpane effect • Difficult to match colours due to variation in texture or glitter effect, which gives a slightly different visual colour • If a very high level of Mica (above 12%-15%) is used it can adversely affect the durability, over the long term, as the Mica plates can start to split when present in large amounts.

This is known as checking, and it’s why Mica is normally used in combination with other extenders • Settling – if the level of Mica is too high and there is not enough anti-

Coarse and fine Micas are available locally from Omega, Hippo and Carst & Walker.

22 | Coatings SA

settling agent present, the Mica flakes can settle and be very difficult to mix back into the coating. c

Mica improves flexibility and prevents shrinkage and sheering of a coating

TYPES OF MICA Coarse Micas (20/30/40 and 60 mesh) are used in joint fillers and textured paints, whereas fine Micas – normally 300-325 mesh are used in primers, undercoats and roof paints.

Mica minerals can be processed in two different ways: Dry Ground: Tends to give finer uneven shaped particles Wet Ground: Gives more consistent Mica plates, but in a drought situation where the milling water is reused microbiological contamination can be an issue. There has been an instance where a large paint company had to withdraw many thousands of litres of its textured finish when microbes were introduced via the coarse Mica that was used in the paint.

While the industry is split between wet and ground Micas and its effectiveness, I have successfully used both wet and dry ground Mica in the same formulations with no problems.

OMEGA FINE PRODUCTS – THE ONE-STOP-SHOP RAW fillers MATERIAL ecialist in functional SOLUTION FOR THE COATINGS INDUSTRY

the coatings industry.

Our goal is to help you achieve your goal whilst being leaders in the supply of dolomite, calcium carbonate and related products to the coatings industry. We pride ourselves on offering high quality, value adding products at a fair and reasonable price.

WHY OMEGA FINE PRODUCTS: • We work with you – CK93 finding solutions to your problems.

NAMWOL

• Our focus is on quality with stringent quality control standards.

Dolomite

lastonite

• Impressive service delivery – before, Calcined Kaolin during and after sales service.

OUR FOCUS IS ON QUALITY, QUALITY, QUALITY

Silica

Talc

• Our solutions driven approach allows us to help our customers achieve their goals.

• Our continuous value added product development assures we stay ahead of the game.

Decorative Stones • We listen.

Dolomite Dolomite W Quality Control.

Improved NE

Calcium Carbonate Calcined Kaolin Also available form Omega fine chemicals – Calcined Kaolin, Talc, Silica, Wollastonite and Decorative Stones

Omega Fine Products (Pty) Ltd

) 11 316 2064 • +27 (0) 11 316 5727

Silica

Omega Chemicals (Pty) Ltd

TEL: +27 (0) 11 316 2064 | EMAIL: orders@ofpc.co.za Decorative Stones Est 1970 omegachemicals.co.za • www.omegachemicals.co.za WEB: www.omegafineproducts.co.za Mica

product feature

Roof coatings debunked

H

ome insulation can take various forms, from wrapping a geyser in a blanket, insulating the hot water pipes, the use of insulation materials in the ceiling and walls of a home. One of the easiest – and a very effective method of insulation is to use the correct paint, containing the latest roof insulation technologies.

We asked some of South Africa’s leading paint manufacturers to tell us more about roof paints containing insulation properties as well as material companies to share their products which enhance the insulation properties of roof coatings.

COMPANY: Delta Colours’ FERRO Cool Colors ® Ferro Cool Colors® is a range of different pigment chemistries and colours mostly based on Complex Inorganic Color Pigments (CICPs). They are mixed metal oxides produced by calcination at high temperature with spinel or rutile structures. They are high performance pigments with excellent chemical, heat and weather fastness. Examples include Pigment Brown 24 (chrome antimony titanium buff rutile), Pigment Yellow 53 (nickel antimony titanium yellow rutile), Pigment Yellow 184 (bismuth vanadate), and Pigment Blue 28 (cobalt aluminium blue spinel), among others.

What makes them different is their

ability to reflect the Near Infra-Red (NIR) energy from the sun, thus remaining cooler than pigments that absorbs these wavelengths. This is especially interesting in the case of black pigments such as Pigment Brown 29 (chrome iron brown hematite) or Pigment Green 17 (chromium black hematite), where this effect is more critical, for example in Carbon Black which is an N-IR absorbing pigment.

Other pigments in Delta Colours’ range, such as Ultramarine Blue (Pigment Blue 29), are N-IR transparent, so this means that when correctly formulated (in combination with reflecting environments); they can be also considered cool pigments.

Ferro also offers many years of expertise as well as the possibility to assist customers project by project in order to fulfil their requirements regarding cool performance, as well as durability and performance for the most demanding applications.

TECHNICAL It is well known that dark surfaces heat up under the sun, while white surfaces remain cool. This heat buildup is related to the level of absorption of incident sunlight that is converted into heat, thus the degree of absorption or reflection of incoming sunlight will determine the heat built up on a surface.

24 | Coatings SA

This daily experience, which associates dark colours with hot temperatures, influences our colour choices in everything from clothes to house paints and cars.

So, when sunlight reaches a material, part of the radiation is absorbed (mainly N-IR), heating the surface and the surrounding air by convection. Heat is also transported by conduction into the material, increasing the temperature on the other side by convection. As commented, the typical scenario is comparing a dark with a white roof.

While a white roof can reflect up to 80% of incident light, a dark roof absorbs much more sunlight that is transferred in heat.

With an accurate pigment selection the company can reduce the NIR energy absorbed and formulate dark colours whose surface temperature will remain cooler than other typically used formulations.

BENEFITS The use of ‘cool’ materials, which reduce the heating effect of sunlight, can provide benefits in different areas such as global warming mitigation, by reducing atmospheric temperatures in urban areas and countering some anticipated temperature increases due to global warming, energy savings by reducing the electricity demand to cool heat island effects, or reducing the cabin temperature, fuel consumption and CO2 emissions in cars. But it will also have advantages in coatings and coated materials performance, such as increased service life due to less thermal stress and degradation.

Examples include metal roofs where thermal stress leads to coating damage or EIFS (Exterior Insulation Finishing System), where the insulation board is typically made of PS with a maximum service temperature of about 75°C, so at higher temperatures it loses some of its properties. Typical applications for Cool Pigments are: coil coatings for roofs, exterior paints for roofs and façades, roof shingles, sport fields, automotive coatings and camouflage coatings.

In Focus: Your brilliant inorganic pigment VANADUR® 2108 is a green shade Bismuth Vanadate Pigment. It is the compelling result of a consequent development work based on the world-wide well established VANADUR® product range.

VANADUR® 2108 shows extraordinary high tinting strength and very good hiding power combined with high durability, chroma and dispersibility.

The high tinting strength opens a new economical dimension for end-users in the formulation of decorative, industrial, powder, coil and automotive coatings.

Based on a zinc-free technology it can significantly contribute to ecological-economic balanced paints.

w w w. he ub achcolor.com

product feature PRECAUTIONS When formulating with cool pigments, some considerations must be taken into account in order to obtain the best possible results. The pigment chemistry used and its dosage is one of the main effects on the cool behaviour of the coating, so avoid using IR absorbers is a must. Even at very low dosages they can ruin the results of the whole formulation. The substrate where the coating is applied and its colour, as well as the thickness of the coating, will also have to be taken into account.

It is recommended to use a white or IR reflecting substrate to ensure a higher %TSR, as well as to consider the thickness or number of layers of the coating. A bad decision on the substrate can ruin the result regarding the cool properties of a well optimised coating if the whole system is not optimised.

COMPANY: Duram Smart Paint’s Roofkote CoolTech Duram Roofkote CoolTech is an innovative heat reflective roof paint with a 12-year quality guarantee. It uses specially designed infra-red reflecting pigments that reflect at least 30% of total solar reflectance, resulting in reduced roof surface and internal room temperatures.

Total solar reflectance (TSR) is the percentage of irradiated energy that is reflected by an object.

The solar spectrum is comprised of ultra violet radiation, which accounts for only 3% of the solar radiation, while 39% of the radiation is found in visible light region and 58% is present in the near infrared (NIR) region. The NIR content of the solar radiation therefore contributes most to heat build-up on irradiated surfaces such as roofs. The special infra-red reflecting pigments in Roofkote Cooltech reflect at least 30% of the total solar reflectance.

The technology will result in longer life span of the roof due to more heat being reflected than absorbed, and ensure cooler interiors.

COMPANY: Kansai Plascon’s Nuroof Cool Nuroof cool is premium quality UV-resistant water based acrylic roof coating with Infrared reflective technology with a minimum Total Solar Reflectance (TSR) of 30 %. An

extremely durable, weather resistant coating for use on primed or sealed galvanised steel, granular tiles, cement tiles, fibre-cement sheets, throughcolour roof tiles, Zincalume and Aluzinc.

UV-RESISTANT FOR LONG LASTING PROTECTION • Reduction of roof surface temperature by approximately 10°C • Reduction of interior temperature by up to 8°C • Can lead to power and cost savings by reducing the need for cooling • Thermal emittance < 1 • Easy application by brush, roller or airless spray • Easy to clean equipment with water after use • Can be used on prepared cladding, galvanised garage doors, galvanised gutters and down pipes • 12 year quality guarantee (refer to terms and conditions at www.plascon.com) • The coating has a minimum TSR of 30 %.

PRODUCT INFORMATION Appearance: Low sheen Colours: Standard colours as per colour card Volume solids: 36% Viscosity at 23C: Approximately 105KU Recommended DFT: 35-50µm per coat Recommended WFT: 97-139µm per coat Theoretical spreading rate: 7-8m2/l at 50µm per coat

COMPANY: Sancryl’s envirocryl PA 60 and PA 62 envirocryl A 60 is an APEO free, water borne pure acrylic copolymer emulsion, designed for the production of zero VOC and environmentally friendly decorative coatings.

ADVANTAGES • APEO free • Ammonia free • Formaldehyde free • Zero VOC • Low odour • Iso-thiazalone free • Improved gloss and durability • High abrasion resistance • Improved alkali resistance • Improved water resistance • Improved hiding power.

PHYSICAL PROPERTIES Appearance: Milky white liquid Solids content: 48-50%

26 | Coatings SA

PH: 7.8 - 8.8 Viscosity: 100-1000 cps SG: 1.02 -1.04 MFT: 13-15 °C enviro-cryl PA 62 is the latest technology in waterborne acrylic copolymer emulsion having zero coalescent demand together with relevant environment considerations. envirocryl PA 62 high performance, fine particle size emulsion possessing excellent binding power, water resistance and alkali resistance.

It enables formulators to design a wide variety of different paints using one emulsion.

Suitable formulated paints and conforms to the VOC regulations of the European Directive 2004/42/EC. FEATURES • Zero Coalescent Demand • APEO free • Ammonia free • Formaldehyde free • Zero VOC • Non Heavy Metal containing • CIT/MIT free.

PHYSICAL PROPERTIES Appearance: Milky white liquid Solids content: 48-50% PH: 7.8 - 8.8 Viscosity: 100 - 1000 cps SG: 1.02 -1.04 MFT: 0 °C.

For more information Delta Colours: 021-876-4167 Duram Smart Paints: 021-555-3090 Kansai Plascon: 011-951-4500 Sancryl: 031-902-1422

Don’t follow the herd!

your local partner in colour pigments At Delta Colours we strive to be the leading supplier of an extensive range of high quality pigments and additives from world class manufactures. We offer excellent customer service, technical support, local stock availability and next day product delivery.

Our extensive product range includes ultramarine blues, metallics, organics, fluorescence, pearls, glitters, thermo-chromes, cadmiums, lead chromates, iron oxides, CICP’s, phthalo’s, carbon black, buff & grey titanium dioxides, selected additives and cutting-edge technology in anti-corrosive packages.

Visit our newly revamped website for more information!

follow an expert pigment supplier

Phone: +27 21 876 4167 · Email: orders@deltacolours.com 71 Village Artisan, Cabriére Street, Franschhoek 7690 Western Cape, South Africa

WWW.DELTACOLOURS.COM

products and raw materials Solvey Polymers & Chemicals Rhodoline DF6008 Provides excellent and efficient anti-foaming properties in coatings, inks and adhesive production, and improves productivity significantly.

It not only minimises foaming during the high speed packing stage, it is also very effective in controlling foam generation during paint application and ensures a smooth and uniform paint film.

SPECS • Zero Volatile Organic Compounds (VOCs) • Alkylphenol ethoxylates (APEs) free • No Phthalate and no heavy metal • No Benzene, Toluene, Ethylbenzene, and Xylene.

• Formaldehyde free.

• Low odour.

For more information, call 012-349-5150

Sipomer® PAM 600 Sipomer® PAM 600 is a low viscosity, APE-free polymerizable surfactant that improves corrosion resistance and adhesion of latex to aluminum, cold steel, concrete and glass substrates.

SPECS • Low foaming but surface active • APE-free, and no VOC being intentionally added • User friendly; Easy to incorporate • High mono/di ester ratio with low residual acid • Good sole emulsifier. Can be used as sole surfactant (particle size 170nm) • Can be used in combination with a conventional surfactant to reduce the size of particle (100nm).

For more information, call 012-349-5150

Synthetic Polymers Acrylated Alkyd 60% (AX8060) SPL have developed this single pack product as a cost effective substitute for twin pack hydroxy acrylic coatings for metal. It can also be used for high end quick dry enamels where a high build film is desirable.

Ideal for fast drying exterior or interior air drying coatings. An excellent substitute for chlorinated rubber coatings and a cost-effective substitute for two-pack PU coatings.

PRICIPLE PROPERTIES • Good chemical and solvent resistance • Good scratch hardness and impact resistance • Good acid and alkali resistance.

PRODUCT SPECIFICATIONS • Viscosity: 50-100 • Solids %: 60±2 • Acid value (mgKOH/gm): <15 • Colour, Gardner: <5 • Clarity: Starbright (slight haze permissable).

For more information, call 010-596-4444

Styrenated Alkyd 60% (VX60) Synthetic Polymers has designed this product specifically for high quality road marking enamel applications.

Product formulated correctly will achieve desirable dry film thickness (DFT) as per SABS specification for RM Enamel.

It is specified as a primer and top coat for general industrial coatings.

It displays excellent adhesion to metal with good gloss levels as well as colour retention.

COMPATIBILITY • Long and medium oil alkyds: Incompatible • Modified alkyds: Incompatible • Short oil alkyds: Compatible.

28 | Coatings SA

SPECIFICATIONS • Viscosity: 40-70 • Solids %: 60±2 • Acid value (mgKOH/gm): <10 • Solour, Gardner: <5 • Clarity: Starbright (slight haze permissable).

For more information, call 010-596-4444

Coconut oil Alkyd 60% (SX2060) Synthetic Polymers’ coconut oil alkyd is purely for the automotive and AC & NC wood finish market.

The nature of the oil makes it an excellent choice as it resists discolouration of the film to a great degree.

Suitable for use in stoving finishes, it is recommended for use in Nitrocellulose lacquers (NC) and acid catalysed lacquers (AC).

SX2060 is very pale in colour and possesses excellent resistance to discolouration when exposed to heat and light. It features a good gloss and hardness as well as good durability. It is recommended for use in conjunction with amino resins.

COMPATIBILITY • Amoni resins: Complete • Long oil alkyds: Limited • Medium oil alkyds: Limited • Modified alkyds: Limited • Short oil alkyds: Partial.

PRODUCT SPECIFICATIONS Oil type: Coconut oil Solvent: Xylene Solids %: 60±2 Acid value (mgKOH/gm): <12 Viscosity: 100-150 Specific gravity: 1.0±0.05 Colour: <5.

For more information, call 010-596-4444.

ELITE DECO PAINT ADDING TEXTURE TO YOUR WORLD

Elite Deco paint is brand new in South Africa, tried and tested in Italy and Turkey. This unique, high-quality product offers a wide range of textures and colours.

We offer training for DIY applications we stock all the specialised equipment needed for all the various application techniques. No problem if you donâ&#x20AC;&#x2122;t want to paint, you can make use of our skilled team to complete your project.

This ECO friendly paint has a perfume scent and is water-based; it will bring any feature wall in your home or office to life and will undoubtedly become a talking point.

To become an agent or to simply buy this amazing New product, CALL NOW 011 453 8818/78 We are a proud member of SAPMA

eco

friendly

www.elitedecopaints.com | info@elitedecopaints.com

Out & About

SAPMA Golf day does it again!

The annual SAPMA Golf day hosted at the Zwartkop Country Club in Centurion once again attracted a record field.

The stunning Zwartkops Country Club in Gauteng, which once again hosted the annual SAPMA golf day.

T

he golf day, which coincides with SAPMA AGM that was held the previous day is going from strength to strength and is now a day marked on calendars early in the year.

Featuring a record field, the event included stunning prizes thanks to generous sponsors at each and every hole on the course. This was a day not to be missed.

30 | Coatings SA

Out & About

The stunning Zwartkops Country Club in Gauteng, which once again hosted the annual SAPMA golf day

PICS ABOVE: The golf day provided a perfect opportunity for friends and competitors to network and strengthen old relationships to the betterment of the South African coatings industry.

31 | Coatings SA

technical

IMPROVING PIGMENT DISPERSION AND PAINT STABILITY WITH VERSATILE AMINO ALCOHOLS R. Severac, Y. Fernandes, ANGUS Chemical Company, 6 Avenue du Marais, 95100 Argenteuil, France

In advanced waterborne coatings, a key aspect to achieving superior performance in a formulation is the paint formulatorâ&#x20AC;&#x2122;s ability to understand all the synergistic effects between individual raw materials. Certain ingredients, such as alkanolamines, are more inclined to interact with others in a given formulation, which can provide formulators with the opportunity to optimize the formulation.

T

he unique chemical structures of the alkanolamine additives presented in Figure 1 can be used the illustrate the wide spectrum of chemical equilibrium or boosting effects these chemistries can provide in modern waterborne coatings formulations (Figure 2). The presence of both an amine and alcohol function allow for the respective ionic and hydrogen bonding [1], the compact molecular structure leads to fast diffusion in liquid media. Additionally, the combination of the high-purity and amine bearing quaternary carbon, which provides color stability, make these an excellent choice as dispersing agents (equilibrium 1 â&#x20AC;&#x201C; 4). Beyond this well-documented feature, it has not widely understood that these alkanolamines can also be used as remediation for volatile organic compounds (VOCs) [2] due to chemical scavenging reactions (i.e., with aldehydes, see equilibrium 5), as well as boosting effect with isothiazolinone (i.e., Benzisothiazolinone) helping extend the shelf life of waterborne formulations (synergistic effect 6).

Figure 2. Overview of all interactions between raw materials and alkanolamines leading to performance enhancements This investigation highlights the latest understanding around these alkanolamines, and the growing interest in their use in formulation for color stability and pigment dispersion. The first part discloses the delta E difference of architectural paints stabilized by alkanolamines (see Table 1 for physico-chemical properties) versus a selection of common ethanolamines, including monoethanolamine (MEA) and triethanolamine (TEA). The second section is focused on sharing how the adsorption and the pigment dispersion effect differs from fillers to pigments.

Figure 1. Chemical structures of commonly used alkanolamines in waterborne paint formulations

For more information, contact Savannah: visit: www.savannah.co.za

32 | Coatings SA

technical

Table 1. Physico-chemical properties of ANGUS multifunctional alkanolamines 2. SUSTAINABLE COLOR The durability of dry-film color is linked to the chemical stability of all selected ingredients. The unique composition of these molecules containing a quaternary carbon covalently bonded to the amine can support a longer pure white rendering.

A commercial satin waterborne paint was purchased in a do-it-yourself (DIY) retail shop in France, with the Ecolabel, with “A+” level of the indoor air quality label, 5g/L of VOC. By using a design of experiment methodology (DoE), the impact of the presence of several stabilizers at 0.5%wt has been assessed (AEPD, AMP, DMAMP, MEA, and TEA). The paint was drawn down on a Leneta panel at 150μm with an automatic applicator (Elcometer 4340) and dried in controlled climate chambers at 23°C, 50% humidity for 24 hours.

Dry films were exposed to indirect natural sunlight for 9 months in a laboratory located in the Paris area. The evolution of the color was measured with a Spectrophotometer Konica Minolta CM-5. Results are statistically analyzed by JMB software in dE*, da*, and db* (Figure 3 and Figure 4).

Figure 4. Statistical analysis of da* and db* of a commercial paint containing several stabilizers.

Paint formulations containing AMP, AEPD and DMAMP performed significantly better compared to ethanolamine-based paints. Both da* and db* are affected by MEA and TEA solely after 9 months, showing the much lower color stability despite the mild condition of this test (indirect natural sunlight exposure).

Figure 3. Statistical analysis of dE* of a commercial paint containing several stabilizers.

3. SELECTIVE ADSORPTIONS ON PIGMENT As shown on Table 2, the adsorption ratio of AMP at the surface of several pigments was measured. The protocol used in this investigation is based on the preparation of each individual pigment as a slurry (both CaCO3 and TiO 2 with 60%wt, PB 15:3 at 20%wt) with a disperser at high shear (VMA Dispermat AE01 C1, 20 min at 1700 rpm), in the presence of several different concentrations of 95% AMP and 5% water.

After this dispersing step, slurries are centrifuged

33 | Coatings SA

technical (Sorvall ST8, minimum 2h30 at 4500 rpm) until full settlement of dispersed pigments, and the unabsorbed amount of AMP, free in the filtrate, is determined by a straightforward titration with a strong acid (Mettler T5 equipped with an DGi 115-SC electrode). All raw materials have been used as received.

Table 2. Percentages of adsorbed AMP at the surface of

Figure 5. Average values of adsorbed moles of both AMP and AEPD per TiO2 particle surface area as a function of engaged alkanolamine on the slurry. three particles in the corresponding slurry.

As seen in this dataset, AMP adsorption depends on the nature of a pigmentâ&#x20AC;&#x2122;s particle surface. With calcium carbonate filler, alkanolamines are not attracted by the surface even at high dosage (1%wt of AMP per filler weight in the slurry).

This is potentially the result of the slight alkaline nature of the surface (isoelectric point at 8 to 9.5 [3]). At the opposite, titanium dioxide and copper phtalocyanine surfaces display a higher affinity for AMP, leading to quantitative adsorption at very low dosage, 0,12%wt and 0,35%wt respectively. By adding more AMP, a saturation point is attained and the increase in dosage does not lead to any additional significant adsorption. It can be stressed that the saturation point depends on the particle size (i.e., the particle area). The saturation point with Kronos 2190 is around 0.12%wt (particle diameter of 300nm), in comparison, the saturation point with PB15:3 is 0.65%wt.

The adsorption can also be linked to the acidic nature of the particle itself. As an illustration of this effect, Figure 5 illustrates the particle saturation by plotting adsorptions of amino alcohols that have been standardized by dividing the molar adsorption by TiO2 surface areas.

Four different titanium dioxides were selected with increased amount of SiO2 surface treatment (K2043 10.3%; K21603.8%; K2056 2.1%; K2190 0.1%). A higher SiO2 surface treatment providing higher acid value requires more alkanolamines at the surface. Despite a low SiO2 level, K2190 can interact significantly, which may be a result of the 0.4% ZrO2 surface treatment (this treatment is not present on other examples).

4. CONSEQUENCE ON THE SELECTIVITY OF THE ENHANCEMENT OF DISPERSING AGENTS By considering the selective adsorption of alkanolamine on TiO 2 and organic pigments, dispersant demand curves of corresponding combinations were performed.

Pigment dispersions were carried out in a VMA Dispermat AE01 C1, and viscosity measured with a Krebs viscosimeter. This conventional procedure consists in the determination of the minimum required concentration of dispersing agents leading to the optimum wetting point (71.0%wt for CaCO3, 69.0%wt for TiO 2 , 26.5%wt for PB 15:3). This point corresponds to the concentration where the viscosity no longer decreases. Durcal 5 (Figure 6), Kronos 2190 (Figure 7), and Hostaperm Blue B2G (Figure 8) were used and a regular polymeric dispersing agent Orotan 731 AER was then combined with either

AMP or AEPD. Figure 6. Dispersant demand curve of Durcal 5 (Omya) with Orotan 731 (Dow) in presence of 0.30%wt of either

34 | Coatings SA

technical AMP-95 or AEPD VOX 1000.

As expected, neither AMP or AEPD are suitable for calcium carbonate dispersion as all dispersant demand curves, with or without codispersant, aresimilar (Figure 6). The poor interaction, leading to low adsorption, correlate with this weak dispersing performance.

The synergistic effect between conventional dispersing agent and alkanolamines becomes highly relevant with titanium dioxide and organic pigment PB15:3. Even at the extremely low dosage of 0.05%wt, AMP can drastically improve the efficiency of a common anionic polyacrylic dispersing agent (about 70% reduction of the dispersant demand), and can disperse TiO2 without the support of another dispersing agent at higher dosage (Figure 7) as reported earlier [4]. In the case of PB15:3, the much higher surface area of the pigment requires higher concentration, but the synergistic effect is shown at 0.3%wt. The optimum boosting effect occurred around the adsorption saturation point of 0.7%wt (see Table 2 and Figure 8). This means that the use of AEPD enables the reduction in primary dispersing agents in water-based formulated products, minimising drawbacks of these

0.3%wt of either AMP-95 or AEPD VOX 1000.

CONCLUSIONS Alkanolamines, such as 2-amino-2-methyl-1-propanol (AMP) and 2-amino-2-ethyl-1,3-propanediol (AEPD), are commonly used as key stabilizing agents in a wide range of waterborne paint formulations. Due to the strong interaction between specific amino alcohols and both pigments and dispersing agents, the level of agglomerates and the overall particle size distribution of pigments can be improved in paint formulations.

This chemical link seems to be stronger with acid containing particle surfaces. This selectivity leads to a much better boosting effect on challenging pigments, such as titanium dioxides or organic pigments, and minimizes the consumption by the adsorption mechanism on conventional filler such as calcium carbonate. AMP and AEPD support the development of higher whiteness and colour strength and provide sustainable tints due to a high stability in the dry film in comparison to ethanolamines.

AKNOWLEDGEMENT The authors would like to thank all raw material suppliers, in particular Kronos for providing both materials and valuable feedback along this investigation. In addition, thanks go to Farah Shaik Dawood and Marianne Riffault who performed laboratory works during their student internship at ANGUS Chemical Company.

REFERENCES

hydrophilic anionic species [5] [6].

[1]

U. P. B. Müller, “Neutralizing agents,” in Coatings Formulation, 2nd revised Edition, Hanover: Vincentz Network, 2011, p. 172.

[2]

R. J. S. I. A. T. A. R. W. C. E. C. M. A. H. P. M. N. G. D. Green, “Methods for Reducing Airborne Formaldehyde”. Patent US 2010/0124524 A1, 20 May 2010.

[3]

G. E. A. P. Somasundaran, “The zero point of charge of calcite,” Journal of Colloid and Interface Science, vol. 24, no. 4, pp. 433-440, 1967.

[4]

Y. F. R. Severac, “Painting a more Stable Picture,” European Coating Journal, no. 6, pp. 18-23, 2018.

[5]

A. F. M. C. M. Muth, “Maintaining protection: how dispersants affect corrosion resistance of waterborne paints,” European Coatings Journal, no. 1, pp. 30-33, 2016.

[6]

V. Verkholantev, “Pigment/Dispersant Interactions in Water-Based coatings,” Surface Coatings International, no. 9, pp. 414-420, 1997.

Figure 7. Dispersant demand curve of Kronos 2190 (Kronos) with Orotan 731 (Dow) in presence of either

0.05%wt or 0.20%wt of AMP-95.

Figure 8. Dispersant demand curve of Hostaperm Blue PB15:3 (Clariant) with Orotan 731 (Dow) in presence of

35 | Coatings SA

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