Resurrect the gloss in your boat's gel coat with this compound / polish that 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 gel coat. Contains no wax or silicone. Use by hand or with electric / air powered machine. Follow-up with a Scotchgard or 3M marine wax to maintain the gloss.