Kolor 45 provides multi-season antifouling protection against barnacles, algae, and hydroids in salt and freshwater. Its ablative copolymer base renders a smooth finish with durability and abrasion resistance. Kolor releases biocide during the constant exposure of new paint film to the water. Kolor has universal application over all types of properly prepared bottom paints, ablative or hard. For use on fast fiberglass boats, wood, steel, and aluminum hulls.