Originally Posted by cruizerEd
If it is paint the Meguiars polish and marine past wax is the way to go. Then keep it looking good with Aero Cosmetics Wash Wax All.
If it is fiberglass you can do the polish thing or you could try poli glow. But check how poli glow is with stickers, I've never used it with stickers. You have to use the poli glow prep and follow the instruction meticulously but the results are impressive. Some people complain poli glow peals but I haven't had the issue. IT does not last forever and you will have to strip and reapply when it starts to weather.
For clarity, the Meguiar #56 Boat / RV Pire Wax recommended by Filon Composite is not a paste, rather a liquid polish. It is designed for both fiberglass gel coat & painted. It is easy to apply and easy off.
BOAT/RV PURE WAX #56
Blends pure Brazilian carnauba wax with polymers and resins to provide durable long-lasting protection and extraordinary gloss
Protects against the sun’s ultraviolet rays
Safe, effective and easy to use on all fiberglass gel coat and painted marine or RV surfaces
Especially effective on dark colors and clear-coated metal flake finishes
Effective by hand or by machine
With that said waxes are like to batteries, hard to find a bad wax or bad new battery. There are lots of choices. OP has not been back, but I think any of the waxes if used properly and consistently would have prevented what he is seeing today, that was my point.
I am trying to get around to waxing mine for this year, but everytime I get the RV washed for wax, it either rains or I have to take the RV someplace