Bio-Kleen M00307 Amazing Cleaner Multipurpose RV and Boat Vinyl Cleaner - 32 oz. Specializes in removing mold and mildew stains on boat vinyl, canvas and more Lifts dirt and stains out while cleaning boat vinyl and fabric Quickly breaks down bug/insect debris on vehicles, boats and trailers Also and rv cleaner that will remove the chalk residue on rubber rv roofs Biodegradable, non-aerosol