Mar-Pro Ablative Co-Polymer is a bottom paint with a 67% added cuprous oxide (copper oxide). In addition, Mar-Pro has added a performance booster that protects against slime, grass and weed. Continual release of biocide makes this elf polishing copolymer most effective for anti-fouling protection with only minimal paint buildup. Tough, multi-seasonal paint for superior protection against hard and soft browth in extreme fouling conditions, and can re-launch after extended haul-out while retaining original anti-fouling properties. Perfect for powerboats and sailboats, and can be applied directly over properly prepared ablatives, epoxies and vinyl's, and most any other hard or ablative bottom paints.