3M™ Marine High Gloss Gelcoat Compound removes the scratch pattern left by abrasives in previous sanding processes, as well as cleaning up oxidisation, waterline marks and other stains and blemishes. Designed for use on gel coats, 3M Marine High Gloss Gel Coat Compound quickly removes P800 dual action or P1000 wet sanding scratches to leave a high gloss finish. Its unique formulation contains no wax or silicone and reduces slinging whilst buffing for a superior, swirl- and hologram-free result.