Sea Hawk Sharkskin Bottom Paint The Sea Hawk Sharkskin is a traditional 45.2 copper-based hard-modified epoxy bottom paint. Made to aggressively combat all types of marine fouling including sea grass, green weed, barnacles, and other fouling organisms found in both salt and fresh water. Can be applied over most antifouling coatings. Features Better color consistency for color matching Highest grade cuprous oxide available Most effective copper release rate Consistent viscosity means better flow