Especially formulated for inflatables and dinghies. MDR's Bottom Coating is a flexible vinyl, water-based anti-fouling coating containing cuprous oxide for maximum protection against barnacles and other marine growth in fresh and mid-temperature range salt water. It can be used on most inflatable materials including Hypalon, PVC and rubber, along with fiberglass or wood dinghies. Easy to apply, with brush or roller, odor free and easy cleanup with water. Inflatables can be deflated and rolled without cracking bottom coating. One quart will provide two coats of protection for the average eight to ten foot boat.