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Your cart is empty.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. Our fastest-cutting product for gelcoat, this compound removes P800 and finer scratches and leaves a high gloss finish ideal for cutting polish and wax.
Joe Notarianni
August 15, 2025
Although quite pricey, This product is unbelievable. Makes an older boat hull's gelcoat look like new. I highly recommend this product to make your boat/fiberglass/gelcoat look like new
Shirley Molina
August 9, 2025
It worked wonders on my boat, removing years of oxidation and restoring the shine. The application was smooth, and it didn’t take much effort.
Secret Agent
July 17, 2025
I have a dark blue fiberglass trailer that was damaged on two sides by some very hot weather--over 115 degrees, far hotter than what my area has ever had in the past. I've tried other oxidation removers without much, if any, effect. This worked really well, although there are two spots I may want to hit again. I applied the 3M product with a buffer and then washed off the residue. I followed that with Meguiar's Marine/RV M4516 High Gloss Polish (Number 45), again applied with a buffer and washing off the residue. Then Zymol Z503 Cleaner Wax applied with a buffer but removed by hand.The results were incredible. Before the damage to the trailer was noticeable from many feet away, but now you have to look fairly hard to see it. There are two small areas I may hit again with all three products, but even they are acceptable.If your damage isn't as great I believe 3M also makes a low and medium oxidation product, but I did use this on an area of light damage with a light buffer action and it worked incredibly well.
JIM H.
June 21, 2025
Works as promised, medium agressive but removes stains and imperfections.
samuel adams
June 19, 2025
I used this on my boat which had a 3 year oxidation layer from SoCal sun. Worked great with a electric buffer. Leaves a shine, but you still need to go over it with polish, as designed. Would buy again for heavy oxydation.
Excelente para uso en botes
May 29, 2025
Excelente
Jayden James
April 28, 2025
It’s easy to apply and really cuts through the dullness, leaving a nice, smooth finish. I’m so impressed with how well it restores the shine.
Jordan Jordan
April 26, 2025
The gelcoat heavy cutting compound works wonders! It quickly removes scratches and restores shine. Easy to apply and delivers professional results.
Jorge luis villatoro osorio
April 25, 2025
Es un excelente producto muy bueno
cbareta
March 23, 2025
Work as advertised
Dennis
February 14, 2025
It did a great job removing the heavy oxidizing from the gel coat finsh on the boat. I then used a finer oxidizer remover before I waxed for the final finish. Boat looks great.
BK
February 8, 2025
Delivered as promised. Using it on a 15+ yr Larson bow rider (white) and it’s restoring the original glossy finish very well… using a 7" power buffer w/ wool pads
Bruno DEVEAUX
January 20, 2025
Super polisch pour nos bateaux à coque foncer
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