Roof-guard helps to protect all RV roofs from damage that could be caused from sun, water, and grime and also helps to avoid oxidation caused by harsh sun-ray rays. The mild, nonabrasive formula keeps surfaces cleaner longer with no residue or oily build-up. Contains no silicone, waxes, glycerine, or petroleum distillates. Simply spread evenly with a damp mop or cloth and let air dry.