Fiberglass boat hull cleaner. Removes stains from upholstery, wood, rims, brake dust, vehicles, fenders, fiberglass, sink, toilet, bathtub, clothing, stainless steel, fabric, painted surfaces, decks, chrome, ceramic grout. Will remove coffee stains, grape juice stain and much more. It is biodegradable, no smell, won\'t hurt your skin, and is non-flammable. Apply on dry surface, wait 60 seconds, and watch it disappear. Simply rinse when done.