Black Gold



MCT's ER-7™ and BlackGold® coatings offer significant protection to particle erosion including Volcanic Ash, Silica Based Sand, and Quartz. As illustrated in the left photo, after exposure to 2kg of volcanic ash, the uncoated airfoil is eroded through the part creating a hole. The coated part remains intact even after 3kg of exposure.

The picture on the right shows the advantages of the BlackGold® coating over uncoated when exposed to equal amounts of silica sand.