COATINGS & LININGS
Denso’s VISCOTAQTM coating systems leading the way in corrosion prevention Denso remains at the forefront of corrosion prevention technology in Australia with its innovative range of VISCOTAQTM products. The patented products provide a visco-elastic, amorphous, a-polar, polyolefin coating to above and below ground pipelines to provide long term protection from environmental damage and maintaincoating longevity.
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he VISCOTAQTM systems are proving to be a valuable addition to vital pipelines and infrastructures within the oil, gas, pipeline, petrochemical, and water industries. The products are 100 per cent impermeable to water and oxygen and have high thermal resistance, offering resilient protection between -45C and 125C. Denso National Development Manager for VISCOTAQTM, Adam Matthews says the VISCOTAQTM range of products offer a truly surface tolerant, self-healing, long-term solution for the pipeline industry. The products were developed in cooperation with leading polymer engineers and oil and gas companies, and have been manufactured using a reliable viscous elastic coating technology. The viscosity allows the coating material to flow into all the pores of the surface it is applied to, whereas the elasticity reinforces it with the strength and robustness of a solid material. This means that the coating has two protective layers: an inner layer to prevent corrosion, and an outer layer to prevent mechanical abrasion. Together, these layers ensure that the coating does not crack, become brittle, deteriorate, or conform to an irregular shape over time.
Denso is providing corrosion prevention technology with its range of VISCOTAQ products.
“The VISCOTAQ coating systems contain no solvents or carcinogens, are non-toxic, environmentally friendly, non-flammable, inert material, with no deterioration over time,” Matthews says.
VISCOTAQTM products can also adhere to a range of shaped and non-shaped substrates.
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The Australian Pipeliner | May 2022
VISCOTAQTM products can also adhere to a range of shaped and non-shaped substrates, including concrete, steel, PVC, metal, vinyl, and wood. It is also suitable for use on buried pipelines and fittings, above ground structures and pipework, flanges and valves, tank chimes, weld joints and more. “Most importantly, VISCOTAQTM is very easy to apply, and [Denso] provide comprehensive product training to ensure the system is applied correctly and maximum coating longevity is achieved,” Matthews says. These features were demonstrated by WRAP Resources, who completed the very first application of VISCOTAQTM on an aboveground fuel line in south-east Queensland in 2021. The VISCOTAQTM XHT, which has a high temperature tolerance and unmatched stability, was applied to a pair of side-by-side fuel lines, 24-inch (609.6mm) and 8-inch (203.2mm) in diameter. This application was done in accordance with the standard application manual. It required minimal surface preparation, only a simple hand tool cleaning. No primer was necessary. The coating was then sealed by Denso’s UV
