Zinc Coat Barnacle Barrier is for use only on bare metals such as steel, stainless steel, cast iron, copper, bronze, galvanized steel and lead. It forms an excellent adhesive bond to underwater metals and running gear and inhibits surface corrosion. Because of its smooth, hard surface it will self-clean in service. Zinc Coat can be used above or below the waterline. Do not apply anti-fouling paint over Zinc Coat. For use only on bare metals Modified epoxy The dried film of Zinc Coat contains 93% pure zinc Not for use on fiberglass or wood Theoretical coverage is 10 ft16 oz. spray can; 2 or 3 maximum coats recommended