Limelite Heritage Technical data by Tarmac

LIMELITE HERITAGE TECHNICAL DATA MORTARS, PLASTERS AND GROUTS Formulated for use in conservation projects and heritage buildings

TIMELESS PERFORMANCE WITH LIMELITE We know how important sympathetic restoration and repair is to your heritage project. Our range of grouts, plasters, mortars and brick protection materials are designed by experts and manufactured with quality assured materials so that you, can get it right first time.

CONTENTS LIMELITE RENOVATING PLASTER

LIMELITE HIGH IMPACT FINISHING PLASTER

LIMELITE WHITEWALL ONE COAT PLASTER

LIMELITE EASY BOND

LIMELITE HERITAGE LIME MORTAR

LIMELITE HERITAGE LIME POINTING MORTAR

LIMELITE HERITAGE GROUT ST. PANCRAS

LIMELITE HERITAGE GROUT WINCHESTER

LIMELITE HERITAGE GROUT ST. PAULS

LIMELITE HERITAGE HYDRAULIC LIME

LIMELITE WHITE PEAK LIME PUTTY

LIMELITE BRICK AND STONE PROTECTOR

The information supplied in our literature or given by our employees is based upon extensive knowledge and experience. This information, together with that supplied by our agents or distributors, is given in good faith in order to help you. Our Company policy is one of continuous Research and Development; we therefore reserve the right to update this information at any time without prior notice. We also guarantee the consistent high quality of our products; however, as we have no control over site conditions or the execution of the work, we accept no liability for any loss or damage which may arise as a result thereof. Country specific recommendations, depending on local standards, codes of practice, building regulations or industry guidelines, may affect specific installation recommendations. Any existing intellectual property right must be observed. Tarmac’s standard terms and conditions apply.

LIMELITE RENOVATING PLASTER PRODUCT DATA SHEET

LIMELITE RENOVATING PLASTER

LIMELITE PLASTER PRODUCTS

LIMELITE RENOVATING PLASTER

Description

Limelite Renovating Plaster is a lightweight, breathable fibre reinforced renovating plaster that controls and manages moisture movement in traditional and damp buildings. Limelite Renovating Plaster works with the fabric of a building, letting walls breathe whilst providing a quality, durable finish that protects and performs for years to come. This breathability enables substrate to dry naturally, meaning Limelite Renovating Plaster can provide a fast and effective solution in both domestic and commercial properties for flood damage remediation and heritage restoration. Limelite Renovating Plaster can be used as a rapid drying, easy to apply alternative to traditional lime based plasters without compromising the flexibility and breathability of the substrate. With a drying time of just 24 hours per coat, Limelite Renovating Plaster can be used to dramatically reduce project times when compared to traditional lime materials which can take months to dry. The plaster can be applied to both modern and traditional substrates, including masonry, block, stone and wooden lath.

Uses

Limelite Renovating Plaster can be used to replace existing lime based plaster or as part of a new plaster system in both modern and traditional buildings and is an ideal solution for flood damage repair or flood damage prevention.

Features • Breathable – can be applied directly to damp walls and substrates • Prevents corrosion of metal fixtures, such as angle beads and lath • Provides a barrier to salt and efflorescence • Lightweight – less than half the weight of a sand and cement plaster • Insulating • Fibre reinforced • Reduces condensation • Rapid drying – 24 hours per coat • Lime content makes the product naturally aseptic, preventing mould growth.

Fire Resistance

Limelite Renovating Plaster is a non-combustible product (as defined in BS 476 : Part 4), and can be designated Class O in accordance with the requirements of the National Building Regulations for use as a surface finishing material.

Salt Resistance

Limelite Renovating Plaster contains salt inhibitors to prevent efflorescence and salt transfer. In areas of heavy contamination,heavy contamination, such as chimney breasts, Limelite Easy-Bond slurry primer should be used prior to the application of Limelite Renovating Plaster.

Compatibility

Limelite Renovating Plaster is compatible with most building materials. Lime plaster, however, is not compatible with gypsum, and therefore Limelite Renovating Plaster must not be used with gypsum finishing plaster or gypsum plasterboard. Bituminous coatings and traces of gypsum should be removed before plastering.

Typical Performance

Model Specification

Limelite Renovating Plaster is associated with the following NBS clause:

Technical Data Dry powder density

600 kg/m3

Density air dried

800 kg/m3

Density oven dried

725 kg/m3

Compressive strength at 28 days

3.0 N/mm2

Flexural Strength at 28 days

1.4 N/mm2

Modulus of Elasticity

2,100 N/mm2

Appearance as supplied

Fine grey powder

Appearance after application (dried)

Light grey keyed finish

Thermal conductivity (k) at 0% moisture by volume

0.13 W/moC

Thermal conductivity (k) at 3% moisture by volume

0.21 W/moC

Thermal resistance (R) at 13mm and 3% moisture by volume

0.058 m2 oC/W

M20 Plastered/Rendered/Roughcast coatings • 330 PROPRIETARY LIME : SAND Limelite Renovating Plaster should always be used with a skim coat of Limelite High Impact Finishing Plaster.

Application

Solid substrates – Brick, block, stone etc. Substrates should be cleaned and any loose or friable material removed. Traces of gypsum plaster, bitumen or other materials that could cause a barrier to adhesion must be removed. Substrates should be primed with Limelite Easy-Bond and the first coat of plaster should be applied once the priming coat is tacky. The plaster should be applied in coats between 7-15mm and a minimum of 24 hours is required between coats. A suitable horizontal scratch should be applied between each coat for a key.

Technical performance is derived by laboratory testing at 20°C.

Once the desired thickness has been achieved Limelite High Impact Finish should be applied as a skim coat. Note that gypsum finishing plasters are not suitable for use with Limelite Renovating Plaster.

Typical Coverage

Wooden Lath

Thermal data above is obtained from CIBSE A3 Guide: Thermal Properties of Building Structures.

Application thickness

Coverage/25kg

Coverage/tonne

10mm

3m2

120m2

20mm

1.5m2

60m2

30mm

1m2

40m2

Figures are approximate and do not account for site wastage.

Mixing

For best results Limelite Renovating Plaster should be mixed in a clean mixing vessel using a mechanical mixer such as a slow-speed drill and paddle mixer. Fill bucket with approximately 12.5 litres of cool, clean water. Add 25kg of dry powder to the water and mix for 2-3 minutes until a smooth, homogeneous working consistency is achieved. Allow to rest for 3 - 5 minutes, then re-mix back to consistency adding small amounts of water if necessary.

The lath should be cleaned and repaired to a reasonable condition. An initial coat of approximately 6mm of Limelite Renovating Plaster should be pushed into the lath to create a solid backing. This should then immediately receive a further coat of Limelite Renovating Plaster which should be used to level. The plaster should receive a suitable horizontal scratch and be left to cure for a minimum of 24 hours before applying Limelite High Impact Finishing Plaster. Note that gypsum finishing plasters are not suitable for use with Limelite Renovating Plaster.

Decoration

Limelite plasters can be decorated 24 hours after application of Limelite High Impact Finishing Plaster. Paints used must be breathable, such as mineral based or water based paints. Wallpaper and tiling is not recommended due to the non-porous nature of the finish. However, if wallpaper or tiling is used the moisture content of the plaster must be checked and deemed suitable by the supplier of the decorative finishes before application.

LIMELITE RENOVATING PLASTER PRODUCT DATA SHEET

LIMELITE RENOVATING PLASTER

LIMELITE PLASTER PRODUCTS

Quality Control Quality Control Limelite Renovating Plaster is factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Health & Safety

Clean Up & Spillages

Users are advised to wear protective clothing when using Limelite Renovating Plaster including face mask, goggles, gloves and overalls when handling, mixing and applying this product. Skin contact should be avoided,and any eye contact should be dealt with promptly by irrigation with clean water.

Dry powders should be disposed of as advised on the material safety datasheet. Tools and equipment can easily be cleaned using water. Cleaning of tools and equipment should be carried out as soon as possible after application.

Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet.

Packaging & Storage

Limelite Renovating Plaster is available in 25kg paper bags, palletised and shrink wrapped. Palletised Limelite Renovating Plaster should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in – first out basis. Shelf life is 6 months’ subject to temperature and humidity. Individual bags of Limelite Renovating Plaster should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. Avoid exposure to water, frost or heat – extremes in temperatures and high humidity will lead to a reduced shelf life.

13 DoP No. 004 EN 998-1:2010 Renovation plastering mortar for internal use.

Information, Prices & Ordering

If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46

Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Fax: Email: Web:

03444 63 00 46 03443 09 97 03 limelite@tarmacbp.co.uk limeliteplaster.co.uk

Reaction to fire: Euroclass A1 Adhesion: 0.8 N/mm2, FP A Compressive strength: CS II Dry bulk density (oven dried): 725 (+/- 100) kg/m3

Tarmac Building Products Ltd, i10, Railway Drive, Wolverhampton WV1 1LH

LIMELITE HIGH IMPACT FINISHING PLASTER LIMELITE HIGH IMPACT FINISHING PLASTER

PRODUCT DATA SHEET LIMELITE PLASTER PRODUCTS

LIMELITE HIGH IMPACT FINISHING PLASTER

Description

Limelite High Impact Finishing Plaster is a breathable and durable finishing plaster designed to provide a quality finish over Limelite backing plasters. The finishing plaster can also be used over lime backgrounds, sand/cement mixes and existing gypsum plaster. Limelite High Impact Finishing Plaster can be used as part of the Limelite Renovating Plaster System, which can be applied directly to damp walls or as part of flood remediation works. Note that gypsum plaster and plasterboard is not breathable, and therefore the benefits of High Impact Finish will be negated when used over gypsum backgrounds. The plaster dries to an off-white, matte finish and can be left unpainted for a natural look if desired.

Uses

When applied as part of the Limelite Renovating Plaster system, Limelite High Impact Finishing Plaster is ideal for use in heritage restoration, renovation and damp environments.

Typical Performance Technical Data Dry powder density

1000-1200 kg/m3

Density air dried

1700 kg/m3

Density oven dried

1690 kg/m3

Compressive strength at 28 days

15 N/mm2

Flexural Strength at 28 days

3.5 N/mm2

Modulus of Elasticity

2,100 N/mm2

Appearance as supplied

Fine white/off white powder

Fire Resistance

Appearance after application (dried)

White/off white

Non-Combustible as defined in B.S. 476: Part 4 and can be designated Class O in accordance with the requirements of the National Building Regulations for use as a surface finishing material.

Thermal conductivity (k) at 0% moisture by volume

0.34 W/moC

Thermal conductivity (k) at 3% moisture by volume

0.47 W/moC

Setting Time (Temperature Dependant)

90 minutes

Limelite High Impact Finishing Plaster is suitable for use in commercial and domestic environments where a high level of impact resistance is required.

Features • • • • •

Suitable for heavily trafficked areas Water vapour permeable Suitable for damp buildings Can be left unpainted for a natural, off white finish Rapid drying – 24 hours per coat.

Compatibility Limelite High Impact Finishing Plaster is compatible with most plaster and render backgrounds, including sand and cement, lime, and gypsum. Note, however, that gypsum plaster is not suitable for damp environments and Limelite High Impact Finishing Plaster should be considered decorative only if applied onto gypsum backgrounds.

Thermal data above is obtained from CIBSE A3 Guide: Thermal Properties of Building Structures. Technical performance is derived by laboratory testing at 20°C.

Typical Coverage Application thickness

Coverage/25kg

Coverage/tonne

2mm

10m2

400m2

Figures are approximate and do not account for site wastage.

Mixing

Quality Control

Fill bucket with approximately 7.5 litres of cool, clean water and add 25kg of dry powder to the water and mix for 2-3 minutes until a smooth, homogeneous working consistency is achieved.

Clean Up & Spillages

Allow to rest for 3 - 5 minutes, then re-mix back to consistency adding small amounts of water if necessary.

Tools and equipment can easily be cleaned using water. Cleaning of tools and equipment should be carried out as soon as possible after application.

For best results Limelite High Impact Finishing Plaster should be mixed in a clean mixing vessel using a mechanical mixer such as a slow-speed drill and paddle mixer.

Model Specification

Limelite High Impact Plaster is associated with the following NBS clause: M20 Plastered/Rendered/Roughcast coatings • 330 PROPRIETARY LIME : SAND

Application

For use as part of the Limelite Renovating Plaster System Limelite High Impact Finishing Plaster should be applied in a single coat of between 2-5mm thick. The plaster should be left to set for 90 minutes before using stainless steel trowels to level. Note that Limelite High Impact Finishing Plaster has a matt finish and should not be overworked. Do not polish. For use over existing plaster finishes Existing plaster should be clean, level and in good condition. The wall should be primed with Limelite Easy-Bond and Limelite High Impact Finishing Plaster should be applied once the primer is tacky. Limelite High Impact Finishing Plaster should be applied in a single coat of between 2-5mm thick. The plaster should be left to set for 90 minutes before using stainless steel trowels to level. Note that Limelite High Impact Finishing Plaster has a matt finish and should not be overworked. For use over plasterboard Due to the high suction of plasterboard, it is recommended that a mist coat of dilute acrylic primer (3:1 Water: Primer) is applied to the plasterboard prior to the application of Limelite High Impact Finishing Plaster. Apply the Limelite High Impact Plaster onto the plasterboard while the primer is still tacky.

Decoration

13 DoP No. 005 EN 13279-1:2008 Thin coat finishing product C6/20/2

Limelite High Impact Finishing Plaster is factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Dry powders should be disposed of as advised on the material safety datasheet.

Packaging & Storage

Limelite High Impact Finishing Plaster is available in 25kg paper bags palletised and shrink wrapped. Palletised Limelite High Impact Finishing Plaster should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in – first out basis. Shelf life is 6 months’ subject to temperature and humidity. Individual bags of Limelite High Impact Finishing Plaster should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. Avoid exposure to water, frost or heat – extremes in temperatures and high humidity will lead to a reduced shelf life.

Health & Safety

Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet. Users are advised to wear protective clothing when using Limelite High Impact Finishing Plaster including face mask, goggles, gloves and overalls when handling, mixing and applying this product. Skin contact should be avoided, and any eye contact should be dealt with promptly by irrigation with clean water.

Information, Prices & Ordering

If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46

Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Fax: Email: Web:

03444 63 00 46 03443 09 97 03 limelite@tarmacbp.co.uk limeliteplaster.co.uk

Reaction to fire: Euroclass A1 Direct airborne sound insulation: NPD Thermal resistance: NPD

Tarmac Building Products Ltd, i10, Railway Drive, Wolverhampton WV1 1LH

LIMELITE WHITEWALL ONE COAT PLASTER PRODUCT DATA SHEET

LIMELITE WHITEWALL ONE COAT PLASTER

LIMELITE PLASTER PRODUCTS

LIMELITE WHITEWALL ONE COAT PLASTER

Description

Limelite Whitewall One Coat Plaster is a moisture resistant, durable plaster designed to be applied using the same methods as traditional backing plaster and finished like a first class finishing plaster. Limelite Whitewall One Coat Plaster provides a white, hard durable surface which does not need to be decorated and is highly resistant to impact damage. Limelite Whitewall One Coat Plaster is not suitable for application onto plasterboard.

Uses

Limelite Whitewall One Coat Plaster is designed for use on cavity drain membranes and solid substrates, such as brick, block and stone. The moisture resistance of the plaster makes it ideal for use with cavity drain membrane systems and tanking systems in underground and humid environments, such as basements, leisure centres and underground rail stations.

Typical Performance

Density set and air dried

1000-1100 kg/m3

Wet density

1325-1460 kg/m3

Compressive strength at 28 days (20oC) o

10 N/mm2

Flexural Strength at 28 days (20 C)

2.1 N/mm2

Thermal conductivity (k) at 3% moisture by volume

0.3 W/moC

Mixing

For best results Limelite Whitewall One Coat Plaster should be mixed in a clean mixing vessel using a mechanical mixer such as a slow-speed drill and paddle mixer. Fill bucket with between 8.75-11.25 litres of clean water and add 25kg of dry powder to the water and mix for 2-3 minutes until a smooth, homogeneous working consistency is achieved. Allow to rest for 3 - 5 minutes, then re-mix back to consistency adding small amounts of water if necessary.

Typical Coverage Application thickness

Area

10mm

100m2 / tonne

10mm

2.5m2 / 25kg bag

Figures do not allow for site wastage.

Fire Resistance Non-Combustible as tested to BS476 Part4. 1970.

Limelite Whitewall One Coat Plaster is associated with the following NBS clause: M20 Plastered/Rendered/Roughcast coatings • 240 ONE COAT PROPRIETARY PLASTER

Technical Data

Model Specification

Application Substrates should be cleaned and any loose or friable material removed. Traces of gypsum plaster, bitumen or other materials that could cause a barrier to adhesion must be removed. Substrates should be primed with Limelite Easy-Bond and the first coat of plaster should be applied once the priming coat is tacky. The plaster should be applied in coats between 7-15mm and a minimum of 24 hours is required between coats. A suitable horizontal scratch should be applied between each coat for a key.

Cavity Drain Membranes The plaster should be installed following the cavity drain membrane system manufacturers instructions, but should not be installed thicker than 15mm in a single coat.

Health & Safety

Quality Control

Users are advised to wear protective clothing when using Limelite Whitewall One Coat Plaster including face mask, goggles, gloves and overalls when handling, mixing and applying this product. Skin contact should be avoided and any eye contact should be dealt with promptly by irrigation with clean water.

Limelite products are factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Clean Up & Spillages Dry powders should be swept up and disposed of in accordance with Local Authority regulations. Tools and equipment can easily be cleaned using water. Cleaning of tools and equipment should be carried out as soon as possible after application.

Packaging & Storage

Limelite Whitewall One Coat Plaster is available in nominal 25kg bags palletised and shrink wrapped. Palletised Limelite Whitewall One Coat Plaster should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in - first out basis. Shelf life is a minimum of 3 months when properly stored but can be in excess of 6 months subject to temperature and humidity.

Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet.

Information, Prices & Ordering

If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46

Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Fax: Email: Web:

03444 63 00 46 03443 09 97 03 limelite@tarmacbp.co.uk limeliteplaster.co.uk

Individual bags of Limelite Whitewall One Coat Plaster should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. Avoid exposure to water, frost or heat - high temperatures and high humidity will lead to a reduced shelf life.

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LIMELITE EASY BOND PRODUCT DATA SHEET

LIMELITE EASY BOND

LIMELITE PLASTER PRODUCTS

LIMELITE EASY BOND

Description

Limelite Easy Bond is a pre-blended, salt resistant primer designed for use with the Limelite Plaster range to aid adhesion and control suction. The use of Limelite Easy Bond will provide a key to smooth substrates and provide resistance to sulphate attack.

Uses

When applied as part of the Limelite Renovating Plaster System, Limelite Easy Bond is ideal for use in heritage restoration, renovation projects and damp environments. Limelite Easy Bond is salt resistant and ideal for use in areas likely to be contaminated with salt, such as underground areas and historic chimney breasts.

Features • High bond strength • Rapid drying • Easy to apply • Salt resistant.

Mixing

5kg of Limelite Easy Bond should be mixed with 2.5 litres of clean, cool water. Once mixed, Limelite Easy Bond will give a working time of 15 minutes. Only mix the amount of material that can be applied in time. The performance characteristics of Limelite Easy Bond are dependent on temperature – higher or lower temperatures will result in reduced or extended setting times, respectively.

Application

Limelite Easy Bond should be brushed onto the substrate around 15 minutes before applying the first plaster coat. Limelite Easy Bond can also be applied by spray machine for covering larger areas faster.

Quality Control

Limelite Easy Bond is factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Typical Performance Technical Data Dry powder density

1200 kg/m3

Wet mixed density

1600 kg/m3

Bond strength (dry)

1.26 N/mm2

Bond strength (wet)

0.92 N/mm2

Typical coverage

14-18m2 per 5kg

Technical performance is derived by laboratory testing at 20°C.

Packaging & Storage

Limelite Easy Bond Plaster is available in 5kg plastic tubs. Individual tubs of Limelite Easy Bond should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. The product should be used on a first in – first out basis. Shelf life is 12 months’ subject to temperature and humidity. Avoid exposure to water, frost or heat – extremes in temperatures and high humidity will lead to a reduced shelf life.

Health & Safety

Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet.

Information, Prices & Ordering

If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46

Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Fax: Email: Web:

03444 63 00 46 03443 09 97 03 limelite@tarmacbp.co.uk limeliteplaster.co.uk

Users are advised to wear protective clothing when using Limelite Easy Bond including face mask, goggles, gloves and overalls when handling, mixing and applying this product. Skin contact should be avoided and any eye contact should be dealt with promptly by irrigation with clean water.

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LIMELITE HERITAGE LIME MORTAR PRODUCT DATA SHEET

LIMELITE HERITAGE LIME MORTAR

LIMELITE HERITAGE PRODUCTS

LIMELITE HERITAGE LIME MORTAR

Description

Limelite Heritage Lime Mortar is a cement-free blend of natural hydrauliclimeandselectedaggregates.Themortarishighlyworkable and combines long term flexibility and breathability with durability. The mortar is available in two aggregate grades, 4mm grit for standard wider 10mm joints and 2mm for thin joint work, in a range of six colours. Both mortars are available in two strength types M2.5 and M5.0 - also known as HLM2.5 & HLM5.0. M2.5 is a medium strength lime mortar known as moderate mix and typically used for most building works and masonry types, brick, block, stone. M5.0 is high strength lime mortar known as eminent mix where a higher level of durability is required below DPC and in exposed areas such as chimneys, copings or canals/marine work. It provides faster, harder set and offers a higher resistance to the freeze/thaw cycle along with high resistance to sulphates attack.

Uses

Limelite Heritage Lime Mortars are used for most building works or majority of masonry types in cavity wall construction, applications include brick, block, stonework, rendering and repointing, both externally & internally. The near zero expansion of NHL binders and the elasticity of pure NHL mortars are such that joint free construction is possible.

Features • Lime based, Portland cement free mortar • Long term durability and flexibility prolong the sustainability/ life of the building • Good vapour permeability enables building to “breathe” increasing the resistance to freeze/thaw, damp, lime bloom and efflorescence • Breathability allows moisture to be absorbed and then released as water vapour through the joints reducing the need for “weepholes” • Easy to use - a factory produced premixed hydraulic lime mortar, just add water - “Mix & Use” • Aesthetically pleasing masonry walls built with Limelite Heritage Lime Mortars enhance the character of brick/brickwork • Lime based mortars are less susceptible to sulphate attack • The flexible nature of Limelite Heritage Lime Mortar means that a reduced amount of vertical movement joints is required • Autogeneous healing & tolerance to structural movement reduces the chance of cracking • Environmentally friendly - 20% less CO2 is generated in production than cement which is actively re-absorbed in carbonation/curing • Lime mortar is “hygroscopic” through its open pore structure; it allows free flow of moisture in and out of the building. Naturally aseptic preventing damp, green mould and moisture build up in the walls creating a “healthier building”

Yield

One 25kg bag of Limelite Heritage Lime Mortar will lay approximately 25 bricks with a 10mm joint for a single brick skin or 1,000 bricks per tonne of mortar. For re-pointing one 25kg bag will produce approximately 2.8m2 with a 10mm joint. One tonne of Limelite Heritage Lime Mortar will lay a maximum of 1,000 no. 65mm bricks or 600 no. 100mm blocks or 430 no. 140mm blocks. No wastage factor is allowed.

Mixing

Limelite Heritage Lime Mortars should be mixed using cool, clean water. Limelite Heritage Lime Mortars can be mixed using a conventional Belle type mixer. The inside of the mixer should be wetted and then the contents of the Limelite Heritage Lime Mortar bag should be emptied into the mixer whilst stationary. Approximately 5 litres of water will be required for each 25 kg bag of Limelite Heritage Lime Mortar. A small amount of the water should be added to the dry powder and the mixer should be turned on. The water should be allowed to thoroughly disperse into the mix before adding more water. Continue adding small amounts of water until 4.5 litres has been added allowing the thorough dispersion after each addition. Allow the mortar to mix for between 5 to 10 minutes and then add the remaining water to achieve the required consistency. Slightly more or less water may be required and the consistency can be checked by placing a small amount of mortar on to the back of a trowel tapping it gently and allowing the mortar to spread evenly across the face, then hold the trowel upside down at which point the mortar should remain stuck. The workability of the mortar can be improved by allowing it to stand and then remixing it just before use.

Colours

Limelite Heritage Lime Mortar is available in arrange of 6 standard colours. A bespoke colour matching service is also available – please contact us for further details.

Clean up & spillages

Dry powders should be swept up and disposed of in accordance with Local Authority regulations. Tools and equipment can easily be cleaned using water. Cleaning of tools and equipment should be carried out as soon as possible after application.

Packaging & Storage

Limelite Heritage Lime Mortar is available in nominal 25kg bags palletised and shrink wrapped. Natural

Sandstone

Palletised Limelite Heritage Lime Mortar should be stored in cool, dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in – first out basis. Shelf life is 6 months subject to temperature and humidity.

London

Individual bags of Limelite Heritage Lime Mortar should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. Avoid exposure to water, frost or heat – extremes in temperatures and high humidity will lead to a reduced shelf life.

Light Brown

Health & Safety

Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet. Light Grey

Dark Grey

Technical Performance Limelite Heritage Mortar 0-4

Limelite Heritage Mortar 0-4

Maximum aggregate size

4mm

Lime : Sand

1:2.25

1:2

2.5 N/mm2

5.0 N/mm2

Resistance to freeze thaw

High

Resistance to sulphates

High

Mortar Durability Class

5-6

7-8

Mortar Description

Typical compressive strength at 91 days

Technical performance is derived by laboratory testing at 20°C

Quality Control

Limelite Heritage Lime Mortar is factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Users are advised to wear protective clothing when using Limelite Heritage Lime Pointing Mortar including face mask, goggles, gloves and overalls when handling, mixing and applying this product. Skin contact should be avoided and any eye contact should be dealt with promptly by irrigation with clean water.

Information, Prices & Ordering If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46 Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Email: Web:

03444 63 00 46 limelite@tarmacbp.co.uk limeliteheritage.co.uk

| 15

LIMELITE HERITAGE LIME POINTING MORTAR PRODUCT DATA SHEET

LIMELITE HERITAGE LIME POINTING MORTAR

LIMELITE HERITAGE PRODUCTS

LIMELITE HERITAGE LIME POINTING MORTAR

Description Limelite Lime Pointing Mortar is a cement-free blend of natural hydraulic lime and selected aggregates with additives designed to improve the workability of the mortar when repointing. The mortar is highly workable and combines long term flexibility and breathability with durability. Available in six colours with a strength class of M5.0.

Uses Limelite Lime Pointing Mortar is used for repointing brick and stonework, and is ideal for brick slip applications. The enhanced flexibility of Limelite Lime Pointing Mortar means that it can be applied with bagged or gun injection.

Features • Lime based, Portland cement free

Mixing

• Long term durability and flexibility

Limelite Lime Pointing Mortars should be mixed using cool, clean water. Limelite Lime Pointing Mortars can be mixed using a conventional Belle type mixer. The inside of the mixer should be wetted and then the contents of the Limelite Lime Pointing Mortar bag should be emptied into the mixer whilst stationary. Approximately 5 litres of water will be required for each 25 kg bag of Limelite Lime Pointing Mortar.

• Easy to use, just add water • Masonry walls built with Limelite Lime Pointing Mortar have improved breathability – increasing the resistance to frost and damp • Designed to provide improved workability when repointing masonry joints • Lime based mortars are less susceptible to sulphate attack • Autogenous healing • Reduces lime bloom and efflorecence • Factory supplied and quality controlled • Suitable for use in listed and heritage buildings • Environmentally friendly - Lime mortars actively absorb CO2 from the atmosphere

Yield One25kgbagwillproduceenoughmortartopoint7m2ofbrickslips and repoint approximately 2.8m2 of brickwork with a 10mm joint. No wastage factor is allowed.

A small amount of the water should be added to the dry powder and the mixer should be turned on. The water should be allowed to thoroughly disperse into the mix before adding more water. Continue adding small amounts of water until 4.5 litres has been added allowing the thorough dispersion after each addition. Allow the mortar to mix for between 5 to 10 minutes and then add the remaining water to achieve the required consistency. Slightly more or less water may be required and the consistency can be checked by placing a small amount of mortar on to the back of a trowel tapping it gently and allowing the mortar to spread evenly across the face, then hold the trowel upside down at which point the mortar should remain stuck. The workability of the mortar can be improved by allowing it to stand and then remixing it just before use.

Colours

Limelite Lime Pointing Mortar is available in arrange of six standard colours. A bespoke colour matching service is also available – please contact us for further details.

Clean up & spillages Dry powders should be swept up and disposed of in accordance with Local Authority regulations. Tools and equipment can easily be cleaned using water. Cleaning of tools and equipment should be carried out as soon as possible after application.

Packaging & Storage

Limelite Lime Pointing Mortar is available in nominal 25kg bags palletised and shrink wrapped. Natural

Sandstone

Palletised Limelite Lime Pointing Mortar should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in – first out basis. Shelf life is 6 months subject to temperature and humidity.

London

Individual bags of Limelite Lime Pointing Mortar should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. Avoid exposure to water, frost or heat – extremes in temperatures and high humidity will lead to a reduced shelf life.

Light Brown

Health & Safety Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet. Light Grey

Dark Grey

Technical Performance Mortar Description Maximum aggregate size Lime : Sand Typical compressive strength at 91 days

Limelite Pointing Mortar M5.0 0-2 2mm 1:2 5.0 N/mm2

Resistance to freeze thaw

High

Resistance to sulphates

High

Mortar Durability Class

7-8

Technical performance is derived by laboratory testing at 20°C

Quality Control

Limelite Lime Pointing Mortar is factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Information, Prices & Ordering If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46 Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Email: Web:

03444 63 00 46 limelite@tarmacbp.co.uk limeliteheritage.co.uk

| 17

LIMELITE HERITAGE GROUT ST. PANCRAS PRODUCT DATA SHEET

LIMELITE HERITAGE GROUT ST. PANCRAS

LIMELITE HERITAGE PRODUCTS

LIMELITE HERITAGE GROUT ST. PANCRAS

Description

Limelite Heritage Grout St. Pancras is a pre-blended, hydraulic lime based structural grout designed for injection into masonry substrates to stabilise the structure. Limelite Heritage Grout St. Pancras is breathable and flexible, making it suitable for use in listed and heritage structures. The grout is highly fluid to provide maximum penetration into the substrate and contains no Portland Cement.

Uses

Limelite Heritage Grout St. Pancras is ideal for grouting up voids in rubble fill masonry or stone walls, amongst other low pressure grouting projects that require a high fluidity, structural grout.

Features • Lime based, Portland cement free

Mixing Instructions

• Long term durability and flexibility • Factory supplied and quality controlled • Extremely high fluidity • Increases the durability of traditional structures • Suitable for low pressure injection grouting in listed and heritage buildings.

Technical Data Compressive strength at 3 days

0.5 N/mm2

Compressive strength at 7 days

8 N/mm2

Compressive strength at 21 days

12 N/mm2

Compressive strength at 28 days

15 N/mm2

Setting time

6-8 hours

Typical flow channel

>300mm

Yield

12.6 litres per 15kg bag

Water : solid ratio

0.4 (6 litres per 15kg bag)

Technical performance is derived by laboratory testing at 20°C.

Application Instructions

Limelite Heritage Grout St. Pancras is designed to be pumped into place using suitable low-pressure injection equipment, such as helical screw, diaphragm or piston type pumps.

Technical Performance

For best results Limelite Heritage Grout St. Pancras should be mixed using a mechanical mixer, such as a bougee pan, colloidal mixer or a drill and paddle. 15kg of grout powder should be steadily added to 6 litres of cool, clean water, and mixed for 2-3 minutes until a smooth, homogeneous consistency is achieved.

Limelite Heritage Grout St. Pancras can be applied using a pressure pump and pumping pressures of 2–4 bar have been recorded in ducts between 2 to 4 metres long and 65mm diameter incorporating a 20mm grip bar. (High yield stainless steel.)

Quality Control

Limelite Heritage Grout St. Pancras is factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Clean Up & Spillages Tools and equipment can easily be cleaned using water. Cleaning of tools and equipment should be carried out as soon as possible after application.

Packaging & Storage

Limelite Heritage St. Pancras is available in nominal 15kg bags palletised and shrink wrapped. Palletised Limelite Heritage Grout St Pancras should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in – first out basis. Shelf life is 6 months subject to temperature and humidity. Individual bags of Limelite Heritage Grout St Pancras should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. Avoid exposure to water, frost or heat – extremes in temperatures and high humidity will lead to a reduced shelf life.

Information, Prices & Ordering If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46 Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel:

03444 63 00 46

Email:

limelite@tarmacbp.co.uk

Web:

limeliteheritage.co.uk

Health & Safety Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet. Users are advised to wear protective clothing when using Limelite Heritage Grout St. Pancras, including face mask, goggles, gloves and overalls during handling, mixing and application. Skin contact should be avoided, and any eye contact should be dealt with promptly by irrigation with clean water.

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LIMELITE HERITAGE GROUT WINCHESTER PRODUCT DATA SHEET

LIMELITE HERITAGE GROUT WINCHESTER

LIMELITE HERITAGE PRODUCTS

LIMELITE HERITAGE GROUT WINCHESTER

Description

Winchester Grout is a medium strength lime based grout for the grouting of voids in heritage structures. The grout is designed to have a moderate compressive strength and high flexibility to provide similar properties to a hydraulic lime mortar once cured. The grout is Portland cement free, breathable and salt resistant. A detailed investigation of the structure is always recommended prior to grouting especially where large areas are involved.

Uses

Limelite Heritage Grout Winchester is ideal for grouting up voids in rubble fill masonry or stone walls, amongst other low pressure grouting projects that require a high fluidity, moderate strength grout.

Features

Mixing Instructions

• Lime based, Portland cement free • Long term durability and flexibility • Factory supplied and quality controlled • Extremely high fluidity • Suitable for low pressure injection grouting in listed and heritage buildings.

Technical Performance

Quality Control

Compressive strength at 7 days

4 N/mm2

Compressive strength at 28 days

7 N/mm2

Setting time

Min. 12 hours

Flow cone test result (ASTM C939-01)

95 seconds

Clean Up & Spillages

Yield

12.36 litres per 15kg bag

Water : solid ratio

0.4 (6 litres per 15kg bag)

Dry powders should be swept up and disposed of in accordance with Local Authority regulations.

Technical performance is derived by laboratory testing at 20°C.

Application Instructions

Limelite Heritage Grout Winchester is designed to be pumped into place using suitable low-pressure injection equipment, such as helical screw, diaphragm or piston type pumps.

Technical Data

For best results Limelite Heritage Grout Winchester should be mixed using a mechanical mixer, such as a bougee pan, colloidal mixer or a drill and paddle. 15kg of grout powder should be steadily added to 6 litres of cool, clean water, and mixed for 2-3 minutes until a smooth, homogeneous consistency is achieved.

Limelite Heritage Grout Winchester is factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Tools and equipment can easily be cleaned using water. Cleaning of tools and equipment should be carried out as soon as possible after application.

Packaging & Storage

Limelite Heritage Grout Winchester is available in nominal 15kg bags palletised and shrink wrapped. Palletised Limelite Heritage Grout Winchester should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in – first out basis. Shelf life is 6 months subject to temperature and humidity. Individual bags of Limelite Heritage Grout Winchester should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. Avoid exposure to water, frost or heat – extremes in temperatures and high humidity will lead to a reduced shelf life.

Information, Prices & Ordering If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46 Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Email: Web:

03444 63 00 46 limelite@tarmacbp.co.uk limeliteheritage.co.uk

Health & Safety Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet. Users are advised to wear protective clothing when using Limelite Heritage Grout Winchester, including face mask, goggles, gloves and overalls during handling, mixing and application. Skin contact should be avoided, and any eye contact should be dealt with promptly by irrigation with clean water.

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LIMELITE HERITAGE GROUT ST. PAULS PRODUCT DATA SHEET

LIMELITE HERITAGE GROUT ST. PAULS

LIMELITE HERITAGE PRODUCTS

LIMELITE HERITAGE GROUT ST. PAULS

Description

St. Pauls Grout is a low strength lime based grout for the grouting of voids in heritage structures. The grout is designed to have a low compressive strength and high flexibility to provide similar properties to lime putty. The grout is Portland cement free, breathable and salt resistant. A detailed investigation of the structure is always recommended prior to grouting especially where large areas are involved.

Uses

Limelite Heritage Grout St. Pauls is ideal for grouting up voids in rubble fill masonry or stone walls, amongst other low pressure grouting projects that require a high fluidity, low strength grout.

Features • Lime based, Portland cement free

Mixing Instructions

• Long term durability and flexibility

• Suitable for low pressure injection grouting in listed and heritage buildings.

For best results Limelite Heritage Grout St. Pauls should be mixed using a mechanical mixer, such as a bougee pan, colloidal mixer or a drill and paddle. 15kg of grout powder should be steadily added to 12 litres of cool, clean water, and mixed for 2-3 minutes until a smooth, homogeneous consistency is achieved.

Technical Performance

Application Instructions

• Factory supplied and quality controlled • Extremely high fluidity

Limelite Heritage Grout St. Pauls is designed to be pumped into place using suitable low-pressure injection equipment, such as helical screw, diaphragm or piston type pumps.

Technical Data Compressive strength at 7 days

0.5 N/mm2

Compressive strength at 28 days

1.5 N/mm2

Setting time

Min. 24 hours

Flow cone test result (ASTM C939-01)

10 seconds

Yield

17.62 litres per 15kg bag

Water : solid ratio

0.8 (12 litres per 15kg bag)

Quality Control

Limelite Heritage Grout Winchester is factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Clean Up & Spillages Dry powders should be swept up and disposed of in accordance with Local Authority regulations.

Technical performance is derived by laboratory testing at 20°C.

Tools and equipment can easily be cleaned using water. Cleaning of tools and equipment should be carried out as soon as possible after application.

Packaging & Storage

Limelite Heritage St. Pauls is available in nominal 15kg bags palletised and shrink wrapped. Palletised Limelite Heritage Grout St. Pauls should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in – first out basis. Shelf life is 6 months subject to temperature and humidity. Individual bags of Limelite Heritage Grout St. Pauls should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. Avoid exposure to water, frost or heat – extremes in temperatures and high humidity will lead to a reduced shelf life.

Information, Prices & Ordering If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46 Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Email: Web:

03444 63 00 46 limelite@tarmacbp.co.uk limeliteheritage.co.uk

Health & Safety Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet. Users are advised to wear protective clothing when using Limelite Heritage Grout St. Pauls, including face mask, goggles, gloves and overalls during handling, mixing and application. Skin contact should be avoided, and any eye contact should be dealt with promptly by irrigation with clean water.

| 23

LIMELITE HERITAGE HYDRAULIC LIME PRODUCT DATA SHEET

LIMELITE HERITAGE HYDRAULIC LIME

LIMELITE HERITAGE PRODUCTS

LIMELITE HERITAGE HYDRAULIC LIME

Description Tarmac Limelite is a range of Natural Hydraulic Limes conforming to EN 459-1. The following products are available: • Tarmac Limelite NHL3.5: A moderately hydraulic lime suitable for general-purpose use for mortar/ pointing/ rendering of most masonry types. • Tarmac Limelite NHL5.0: An eminently hydraulic lime suitable for use in masonry pointing, capping, foundations, sea defences and new build construction.

Our products contain no additives, mineral additions or Portland cement and are quality assured to EN 459-1: Natural Hydraulic Limes with independent third-party certification. They also carry a CE Mark.

Uses Tarmac Limelite Natural Hydraulic Lime can be used for both the conservation and renovation of historic buildings, and in new build applications. Mortars made with natural hydraulic lime gain strength by a combination of hydraulic setting and carbonation. The lower strength and greater permeability of natural hydraulic lime mortars when compared with cement-based mortars is particularly suitable for repairs to older buildings and for traditional style new build. Natural hydraulic lime mortars have good workability and plasticity and can accommodate some differential movement within the building.

Mortars Typical hydraulic mortar mixes and their applications are shown below:

Natural Hydraulic Lime used for pointing new build construction

Mortar Mix Proportions (by volume) NHL 3.5: Sand

Typical Application

NHL 5: Sand

Typical Application

1:1

Walls below DPC Chimneys Earth retaining walls

1:1

Submerged masonry

1:2

External walls Copings and cappings Parapets and sills

1:2

Walls below DPC Chimneys Earth retaining walls

1:3

Facing to solid construction

1:3

Copings and cappings Parapets and sills

1:4

Internal walls

1:4

Walls above DPC

Historic wall repaired with Natural Hydraulic Lime mortar

Renders

Use of admixtures and additions

The selection of suitable render mixes, whilst following the guidance for mortars, must also consider the nature of the substrate to which the render will be applied. The type of sand used will also affect the final finish obtained. Guidance on selection of mixes for different substrates is given below:

Many proprietary admixtures (especially air-entraining admixtures) can be used successfully in natural hydraulic lime mortars. However, attention should be paid to the admixture manufacturers instructions and trial mixes are always recommended.

Render Mix Proportions NHL 3.5:Sand (by volume) Substrate

Basecoat

Finish coat

1:2

1:2.5

Medium strength

1:2.5

Impervious or dense brick

1:2.5

1:3

1:2

1:3

Weak or porous (soft brick)

Plasterwork

Note: As a general rule, each successive coat should be weaker and/or thinner as you move away from the substrate.

Render Mix Proportions NHL 3.5:Sand (by volume) Substrate Weak or porous (soft brick) Medium strength Impervious or dense brick Plasterwork

Basecoat

Finish coat

1:3

1:2.5

1:3

Note: As a general rule, each successive coat should be weaker and/or thinner as you move away from the substrate.

Batching & mixing Sand Sand for lime mortars and renders should be sharp sand, clean and well graded, free of clay or silt. Building (soft) sands, or sands containing clay and silt, can cause excessive shrinkage. Water Mixing water should be clean and potable. Adding too much water should be avoided as it leads to a reduced strength and an open structure susceptible to frost attack. Batching Mortars and renders containing natural hydraulic lime should always be batched by volume using batch boxes. Mixing Sufficient mixing is required to ensure that the lime is uniformly dispersed throughout the mortar or render. Mechanical mixing is preferred and mixing times should be significantly longer than for cement-based mortar. The workability of the mortar improves with increased mixing time (however, avoid over mixing in hot weather). Allowing the mortar to stand in the mixer drum for a short period of time (10-15 mins), before a final remixing will also improve workability.

The use of proprietary admixtures with natural hydraulic lime is not usually necessary as the workability and frost resistance of mortars or renders based on natural hydraulic lime is usually adequate for most applications. In certain circumstances however, the addition of materials such as pozzolans or ground blastfurnace slag may be used to increase the mortar strength. The addition of Blue Circle Hydralime (hydrated lime) can also be used to improve the plastic properties of the mortar and/or reduce its strength. Trial mixes are always recommended.

Storage Natural Hydraulic Lime should be stored in unopened bags clear of the ground in cool dry conditions and should be stacked in a safe and stable manner. Information on the maximum storage period can be found on the bag.

Technical support Further information or specification advice on Tarmac Limelite Natural Hydraulic Lime and the full range of Tarmac Cement products can be obtained through the contacts listed below.

Health & Safety Contact between natural hydraulic lime and body fluids (eg, sweat and eye fluids) may cause irritation, dermatitis or burns. Natural hydraulic lime releases alkali when mixed with water, and the use of protective goggles, gloves and clothing during batching, mixing and application is recommended. For further information, refer to the Tarmac Health and Safety information sheet (MSDS) for Tarmac Limelite Natural Hydraulic Lime.

Information, Prices & Ordering If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46 Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Email: Web:

03444 63 00 46 limelite@tarmacbp.co.uk limeliteheritage.co.uk

| 25

LIMELITE WHITE PEAK LIME PUTTY PRODUCT DATA SHEET

LIMELITE WHITE PEAK LIME PUTTY

LIMELITE HERITAGE PRODUCTS

LIMELITE WHITE PEAK LIME PUTTY

Description

White Peak Lime Putty is made from the finest Buxton quicklime. Matured for a minimum of four months it is ideal for the production of lime mortars, plasters and renders in restoration and conservation work.

Uses

Lime Putty has no hydraulic set (does not set by reaction with water). It hardens by absorbing carbon dioxide from the air. This process is slow and allows for small movements of buildings before the final set. Lime mortar made with lime putty is a very workable material and when hardened is more ductile than cement based mortars. This allows the building to continue to accommodate small movements. Lime mortars are also “breathable” and this helps in control of moisture in the building fabric. The bond strength of lime mortar is normally weaker than the fabric, which makes it easier to eventually recycle the masonry units.

Mortars

Lime Putty will hold up to three times its volume of clean well-graded sand. No further addition of water is required to make a mortar. We recommend 2.5 to 3 parts by volume of sand for mortar production. Through mixing for up to 20 minutes will ensure a workable product is achieved. For repointing: Remove all mortar to a depth of 1 inch, ensure joints are dampened down, re-mix the mortar to ensure workability. Pozzolans can be added before remixing if using. Pack joints thoroughly, shape whilst it is in the green state. Ensure mortar dries slowly usually over 2 to 3 days. Dampen down if necessary in hot weather to prevent shrinkage. Pozzolanic additions Pozzolans such as fly ash or ground blastfurnace slag can be added to give a hydraulic set and increase the strength of lime mortars. Please refer to the supplier’s user guides for addition quantities. Trial mixes should be used on a small test area for suitability before you commence on a large area.

Lime plaster

Background preparation Ensure background is clean and dust free. Dampen down the surface to prevent excessive suction. This can be done several times the day before and repeated just before application. Always start at the top of the wall.

Dubbing out It may be necessary to apply a dubbing out coat to surfaces with large amounts of damaged joints. Always allow this coat to dry out before keying. Undercoat/scratch coat Can be applied 3-4 days after the dubbing out coat. It can be made from 1 part White Peak lime putty to 2.5 parts grit sand. Before use, hair can be added for extra strength at an addition rate of 0.5kg per 100 litres of plaster. Apply plaster in a layer of 10-12mm. If a thicker plaster is required apply two costs. Allow for sufficient drying times between coats. Key the surface between coats.

Float coat Can be applied 4 -5 days after the undercoat. This is made from 1 part White Peak lime putty to 2.5 parts well-graded sand. Hair can be added to the rate of 0.5kg per 100 litres of plaster. This layer should be no thicker than 11mm. Check for shrinkage in the first 2 days and dampen down the surface if necessary.

Storage On opening the tub it is common for a small amount of liquor to be present on the surface. We recommend this is decanted off before use, and replaced on the surface before resealing tubs containing unused lime putty. Always store under frost-free conditions. Replace the surface water on top of the putty and tightly reseal any part used tubs. Lime Putty improves with age. It can be stored unopened for many years. Well-sealed, part used tubs will also be usable for many years.

Health & Safety Handle with care and avoid direct contact with the skin and eyes. Always wear the correct protective clothing and immediately wash any product from the skin and eyes with copious amounts of clean water. Please refer to our website and/or health and safety product data sheets for further information. Please refer to our chemical safety data sheet for further advice which can be obtained via our website or by contacting our technical team. Finishing coat Apply unhaired mix 1 part White Peak Lime Putty to 1 part fine silica sand for a fine internal finish. For an external finish 1 part White Peak Lime Putty to 2 parts good quality building sand is suitable. Plastering and Rendering on timber laths Wet the laths well the day before plastering and again 2 hours before you start. If dry patches appear dampen them down, unless the laths have been treated with fungicide or insecticide in which case they must be allowed to become surface dry before plastering. It is advisable to add hair to every coat except the finishing coat. The mortar for the first coat must be stiff enough to hold up when laid but pliable enough to squeeze between the laths.

Information, Prices & Ordering If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46 Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Email: Web:

03444 63 00 46 limelite@tarmacbp.co.uk limeliteheritage.co.uk

| 27

LIMELITE BRICK AND STONE PROTECTOR LIMELITE BRICK AND STONE PROTECTOR

PRODUCT DATA SHEET LIMELITE

LIMELITE BRICK AND STONE PROTECTOR

Description

Limelite Brick and Stone Protector is a breathable water-repellent protection cream designed to minimise water ingress into brick, stone, block and concrete substrates. Limelite Brick and Stone Protector is an emulsion cream, applied by brush, roller or spray and requires only a single coat to form an effective, water-resistant protective barrier.

Uses

Limelite Brick and Stone Protector is ideal for use on brick, block, stone and concrete substrates.

Limelite With proper application it leads to a low water uptake, high penetration depth and a good beading effect. The natural appearance of the treated surface remains unchanged.

Special Properties • Safeguards historic structures from deterioration • Reduces water absorption by up to 95% • Greatly improves the insulation properties of the wall • Breathable • Extremely high penetration • Prevents mould growth • Maintains the natural appearance of the wall • Increases the freeze-thaw resistance of the substrate • Single coat application Ready to use.

Application Instructions

Limelite Brick and Stone Protector is best applied undiluted by brush or roller. Brushes, lambskin rollers or spatulas may be used to smaller areas. Larger areas can be spray applied.

Coverage

One litre of Limelite Brick and Stone Protector will cover approximately 5m2.

Packaging and Storage

Limelite Brick and Stone Protector is available in 10 and 20 litre containers, palletised and shrink wrapped. Palletised Limelite Brick and Stone Protector should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in – first out basis. The product “best before end” date is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Typical Performance Technical Data Appearance

White or yellowish cream

Active substance

25 wt %

Odour

Odourless

Density

0.848 g/cm3

Flash point

65°C

Typical Penetration Depth (mm) Limestone

Brick

Sandstone

Mortar

Figures are approximate and do not account for site wastage.

Water uptake over 24 hours (wt %) Untreated

11.82

11.52

Brick and Stone Protector

7.12 5.63

0.71

Limestone

0.78

0.61

Brick

Quality Control

Sandstone

0.46

Mortar

All Tarmac products are factory produced, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Health & Safety

Clean Up

Users are advised to wear goggles, gloves and overalls when handling, mixing and applying Limelite Brick and Stone Protector. In case of mist, spray or aerosol exposure wear suitable personal respiratory protection and a protective suit.

Take up mechanically and dispose of in accordance with the Local Authority. Do not flush away with water. For small amounts absorb with a neutral liquid binding material and dispose of according to local authority regulations. For larger amounts liquid may be recovered using suction devices or pumps. Silicone fluids are slippery, on areas where spillages have been cleaned apply sand or other inert granular material to improve traction.

Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet.

Information, Prices & Ordering If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46 Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT Tel: Email: Web:

03444 63 00 46 specialistproducts@tarmacbp.co.uk tarmac.com

| 29

LIMELITE RESTORATION MATERIALS Plasters, grouts and mortars limeliteheritage.co.uk

Tarmac Building Products Ltd Swains Park Industrial Estate, Park Road, Swadlincote, Overseal, Derbyshire, DE12 6JT

SVD0522

03444 63 00 46 limelite@tarmacbp.co.uk