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.

• Free UPS Ground on orders over $200
• $7 flat rate on orders under $200
• Same-day shipping on orders placed before 2pm ET, Mon–Fri (business days)
• Most items ship UPS Ground or USPS Priority Mail. Hazardous materials (flammable, corrosive or oxidizer products) ship UPS Ground only and are not eligible for USPS, expedited, overnight or air shipping.
• Discounted UPS overnight rates available on non-hazardous items
• Questions? Call us at 800-248-6130