Bio-Kleen M00607 Fiberglass Cleaner, 32 oz. Clinging spray on gel that increases surface penetration Rapid action quickly penetrates and dissolves in seconds Leaves surface sparkling clean Excellent for hand and automatic washing operations Use on fiberglass boats, RVs, metals, tires and rims, props and outboards, pontoons, sinks, bathtubs, shower stalls, toilet seats and bowls, stainless steel fixtures, swimming pools, ceramic tiles and grout