3D Marine & RV Cutting Compound is a heavy-duty marine cutting compound for fiberglass and gel coat when oxidation, scratches, and weather damage are past what a polish can fix. Engineered for marine/RV gel coat abuse—salt, sun, and years of neglect—rather than a light automotive finishing polish. Why detailers keep it on the cart Professional cutting power for severe gel coat oxidation and defects (product page) Built specifically for marine and RV restoration challenges Concentrated abrasives aimed at efficient cut with less wasted effort Creates a clean foundation before finishing polish Machine/pad matrix not published—test on a sample area How to use Use with an appropriate cutting pad on oxidized gel coat, work until the surface clears, wipe residue, then refine with Marine & RV Finishing Polish (630) as needed. 100% PRICE MATCH GUARANTEE Free shipping on all orders over $200 in domestic United States. Orders under $200 are charged $5 flat rate shipping. Same day shipping before 2pm eastern time All orders ship through UPS ground and USPS Priority Mail Discounted overnight rates through UPS Call 800-248-6130