I've heard of using 303 on fiberglass gel coated mh roofs to prevent oxidation and white streaks. My question is: is one coat enough, or should I put more, and if yes, how many more? thanks, R...
We use a mixture of 303 and mop and glow here in Florida. So far it seems to work pretty good. I leave the RV out on the sun 365 in central Florida. I only need to apply the mix once a year, or maybe a little longer. I look at the roof once a month when we take her out camping.