Malmo, Sweden — The economics of corrosion protection for large steel components in wind turbines can be significantly improved by using polyaspartic coatings, said Covestro in a press release.
Danish coatings producer Hempel has developed a two-layer coating system. This comprises a zinc epoxy primer and a topcoat based on Pasquick polyaspartic coating from Covestro.The firm added that polyaspartic coatings are as long-lasting as conventional systems.
The technology and coating system is being used by Swedish corrosion protection company Alucrom at its plant in Malmo. The coating is being used on up to 6 steel towers/week which are being delivered Enercon Windtower Production.
Covestro says the new technology helps reduce the number of coats and has faster cure times than previous solutions. "The outer layer is thicker and there is a 30% reduction in emissions of volatile organic components, using the Pasquick system", said Covestro.