3M’s fastest-cutting gelcoat formula for removing heavy oxidation and P800 scratches. Formula provides longer wet time for extended product life and easier cleanup. Suitable for all gelcoat surfaces including marine, RV and industrial. Can be used with two- or three-step gelcoat finishing processes. Part of a complete range of Perfect-It™ products for gelcoat finishing. Our 3M™ Perfect-It™ Gelcoat Heavy Cutting Compound restores the lustrous beauty of boats by eliminating oxidation, scratches, scuff marks and other surface blemishes from gelcoat. 946 ml