Meguiar'sM6732 Marine/RV One Step Compound, Remove Oxidation, Stains, Scratches, and Water Spots, Restore The Color and Shine of Fiberglass Gel Coat Finishes, 32 Oz Bottle

This stuff works great!👍🏼

I bought a a fiberglass boat that was nearly twenty years old. The fiberglass was in reasonable shape but had medium to heavy oxidization and deep scratches consistent with its age. I tried many things to bring back the shine, including a slew of automotive products and the 3M Marine Compound that many people rave about but none of these products worked for me at all. I was particularly disappointed wit the 3M product as it seemed to do nothing at all and was expensive! By contrast the Meguiar's worked like a miracle and the boat came up like new with just one buff. I guess every situation is different but I am really impressed with how this stuff worked for me.My only caution would be that this product seems to work with a combination of a chemical solvent and mild abrasive. The colored areas of the gelcoat caused the buffing pad to change to that color very quickly suggesting that a LOT of surface material is being removed. I am no expert but I suspect it works by softening the gelcoat with the solvent then removing the softened layer with the abrasives. Given that, in my option this product should be used for that one major compounding where you want to bring an old boat back like new. I would be very careful using this product regularly or on a new boat where only a light buff / wax is needed.If anyone is interested, here is the exact process and tools that worked so well for me:1. I used a Dewalt DWP849 7/9" buffer set to 3,000 RPM2. Fitted the polisher with a flexible backing plate and a Gracefur Hook and Loop 100% Wool Polishing Bonnet3. Washed and dried the boat to remove surface grit, dirt and old wax4. Spread a generous amount of the Maguiars evenly over a two square ft region at a time using a microfiber cloth. I found it worked best to use a lot of compound i.e. A layer of material about 1/16 thick on the surface5. Polished with an overlapping elliptical action until the compound was mostly gone and just a faint haze remained. I used a medium pressure - enough to bend the backing pad a little but not enough to stall the machine. I found it worked best if you use the edge of the pad (i.e. at an angle to the surface) as opposed to laying it flat on the surface6. Wiped the haze off with a clean microfiber cloth7. Marveled at the result!!If your gelcoat is colored the buffing pad will change color quickly, so use a separate pad for each color region to prevent color transfer. For deep scratches and gouges I put large amount of compound (1/8 thick) specifically on that area and worked it in harder than other areas.When the job was complete I used Meguiar's Premium Wax to seal the surface. I used a 10" random orbit polisher for the wax and this took out any swirls left by the more aggressive compound. The wax also added even greater luster and color depth but I have not tested the longevity of the wax in the water yet.One 32oz bottle of compound did a 24' cuddy cabin boat above and below the waterline.

worked wonders on my enclosed trailer! bottom was done top was not done yet! cuts through oxidation

Of all the products I have tried for my older fiberglass Sunrader, this is the ONLY product (including other Meguiar's products) that worked, and easily I might add. I simply washed and put some of this on the buffing wheel and wiped it off [SUPER EASY] and the camper looked BRAND NEW. If you have something fiberglass [or metallic] that you want to look new again, USE THIS. Obviously it won't replace missing paint, and does not replace paint, but it will work with what paint is left to help your vehicle look shiny and new!

I have a 2000 class C motorhome and it had a slight oxidation, and this product worked great with little effort, I used a combination buffer and hand polish. Works great!!!

Have only started using product so far with little effort on Rv oxidation is removed leaving a beautiful shine

I ONLY TRIED A SMALL SPOT,AND WHAT A DRAMATIC DIFFERENCE;THIS POLISH WORKS INSTANTLY WITH OR WITHOUT A BUFFER.

I bought an older boat which had some oxidation and blemishes all over the bull, walls, and floor. This will cut through the oxidation pretty quickly and a lot of the scratches/stains I thought were permanent came out as well. From that standpoint, I am really satisfied. But, this is advertised as a one-step product that will polish and add gloss. That it doesn't do that so well. I'm left with a haze even after buffing not only with a cloth, but wool wheel on my power buffer. It needs a wax or other polish to go on after. If it was only a rubbing compound, I'd be thrilled, but when I thought I was going to be able to skip a step and only do one pass on the boat, I was a little disappointed.