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Hempel, trusted to protect wind turbines around the world

OVERVIEW

Standing at an impressive 140 metres high, Vestas’ wind turbine stands at the Danish National Test Centre for large wind turbines, where it is producing electricity for around 7,500 homes. The impressive structure – which has a rotor area the size of three football fields – needs a robust coating system to protect it from the corrosive saltwater atmosphere. As a long-standing Vestas supplier and development partner, it was natural that Vestas ask us to provide a protective coating system for the V-164 8.0 MW prototype.


Due to the tower’s size, special vehicles are required to move the pieces. As well as anti-corrosive protection, the coating system has to deliver excellent abrasion resistance in order to protect the tower during transport and installation. Vestas chose to use our standard protective coating system for wind turbines, which is proven to deliver excellent anti-corrosion performance, robust abrasion resistance and lasting weather and UV resistance.

Vestas chose a highly durable protective coating system for both the interior and exterior surfaces. The exterior surface is categorised as C5-I (high) according to ISO 12944, and our coating system comprised Hempadur 4774A, a self-priming high-build epoxy, followed by a layer of Hempathane HS 5561B, a two-component, aliphatic polyurethane finish. The internal surfaces have a lower corrosive categorisation and were coated with two layers of Hempadur 4774A.

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