Originally Posted by David M
I would have to see it to believe it. All gelcoat eventually oxidizes.
I would have to agree with David. Once the UV's have damaged the sheen on a gelcoat all polishing does is leave a wax surface that eventually dissipates again in a short time. Even buffing out a gelcoat is only good for short time. Filling all the micro pits would have to be with something that is as durable as the original gel itself.
What ever you use has to stand up to the UV's. Gelcoats originally have a high sheen and hard surface which reflects the UV's and the darker the colors the longer they'll last. Red and yellows are bad!
White works well because one can not see the damage, without a trained eye, that has occurred until it's almost too late or is too late.
The only real way to restore a gelcoat is to spray on a new layer but that's a LOT of work.
I have found that wiping on Penetrol® with a rag, on a well cleaned gelcoat, makes them look real good just as long as any wax will. And it slows down the oxidation process. The problem with wax is it scrapes off when washing
off the settling dirt.