Interlux ACT Ablative Antifouling Paint. Ablative technology enables the coating to wear away during use, eliminating paint build-up and removing the need for heavy sanding. Overcoats existing antifouling paint. Provides excellent season-to-season protection against all forms of marine fouling in waters with moderate to heavy fouling. Very effective at controlling shell fouling such as barnacles and zebra mussels, and contains a Slime Fighter to control weed, slime and algae growth. Can be used in fresh, salt and brackish waters. Cane be used on GRP/FRP, lead, wood, bronze and stainless steel. Can be applied by spray, brush or roller. Matte finish. Not for use in the state of California. Sold by the quart or gallon.