Try Meguiar's Marine-RV One Step Compound, it remove oxidation, stains, ect. and leaves a little shine. Follow that with a coat of wax and looks like new again. It is designed for Gelcoat on Boats & RVs. I love it.
🙂
Papa Bob
1* 2008 Brookside by Sunnybrook 32'
1* 2002 F250 Super Duty 7.3L PSD
Husky 16K hitch, Tekonsha P3,
Firestone Ride Rite Air Springs, Trailair Equa-Flex, Champion C46540
"A bad day camping is better than a good day at work!"