May 6, 2013 – 3M Renewable Energy Division’s Wind Blade Protection Coating W4600 is a two-component polyurethane coating that promises excellent erosion protection properties to help prevent and repair leading-edge erosion on wind blades. Erosion can lead to a significant loss in annual energy production, says 3M, costing owners and operators thousands of dollars. Blade repair and protection can help improve annual energy production, reduce downtime and protect blade integrity. The coating is designed for application in OEM facilities, and can be applied via brush or casting.