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Hempel Unveils HEMPADUR 4774D Coating for Wind Turbine Towers

Published on 2015-05-20. Author : SpecialChem

International coatings supplier Hempel announced the launch of a new combined primer and mid-coat designed specifically for wind towers. The new coating, HEMPADUR 4774D, will be used in Hempel’s well-known two-coat anti-corrosive system for wind turbine towers to address previous UV stability issues.

Hempel’s two-coat wind tower protection system dries up to 30% faster than equivalent three-coat systems, helping to eliminate production bottlenecks, increase throughput and reduce drying hall costs.

Since it was first launched in 2008, the system has effectively become the industry standard within two-coat paint systems for wind towers, and around 70 per cent of producers using a two-coat system for wind towers choose Hempel.

Anders Voldsgaard Clausen, Group Wind Power Segment Manager at Hempel, comments: “By shifting to our two-coat system, wind tower producers can put a tower through the production process roughly 30% quicker, enabling them to produce more towers in each shift. The two-coat system also means lower VOC emissions and less paint and waste, which all contributes to reducing the overall cost of wind tower production.”

Developed specifically for wind towers, HEMPADUR 4774D will replace the combined primer and mid-coat currently used in Hempel’s two-coat system and will improve the system by addressing previous UV stability issues.

“Unlike the exterior, a wind tower interior usually only requires one or two coats with a primer/mid-coat. The interior is often exposed to UV rays while awaiting erection and previous epoxy primer/mid-coats could lose their white color. HEMPADUR 4774D has been designed to maintain its color in these conditions.” Anders Voldsgaard Clausen explains.

Hempel is one of the leading coatings suppliers to the wind energy sector and supplies coatings to more than 50% of all wind turbines, towers and blades produced around the world.

According to Anders Voldsgaard Clausen, the improved two-coat system is the result of many years of experience in the industry. “Our new two-coat system has been developed through close work with some of the industry’s leading companies in order to reduce the overall cost of wind energy production.” he says.

About Hempel

Hempel is one of the world-leading coatings suppliers for the decorative, protective, marine, container and yacht markets. From wind turbines and bridges to hospitals, ships, power stations and homes, its coatings protect man-made structures from the corrosive forces of nature.

With a focus on R&D, advanced production techniques and professional coating advice, it work around the globe to help keep its customers’ investments safe and beautiful for longer. Its working concept is simple: it is curious, creative and self-critical, and always aim to create extra value for its customers.

Source: Hempel

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