3M 09089 Marine Color/Glass Restorer Removes light to heavy oxidation Also removes scratches, stains, blemishes, and fine swirl marks that compounding normally leaves behind For use on fiberglass gelcoat Used to resurrect the gloss in your boat's gelcoat Combines an exceptionally fast cutting compound with a finishing material in one It removes light to heavy oxidation, scratches, stains, blemishes, and fine swirl marks that compounding normally leaves behind on fiberglass gelcoat