Cleaning / waxing the Class B fiberglass top
I can't believe there are not 50 threads on this. I am embarking on cleaning and waxing a neglected but sound fiberglass top on the 20 year old Class B. I plan to wash first, then use something mild...
Forum Discussion
It really depends on how badly oxidized the surface is. On my 15 year old Class B roof the clear coat was peeling off from the sun and the surface had a lot of gelcoat cracks. I was working at the time and seldom waxed the roof. On my 20 year old Class A front and rear caps they were highly oxidized but no cracks, Bar Keepers Friend and TSP did a good job of removing the oxidation. As the surface ages from the sun it gets harder it bring back the shine with just hand polishing and you may have to use a machine polisher. A Class B roof is small and would be hard at least for me to machine polish so you may want to consider the Zeps process which I started to use at year 16 and it has held up for 4 years with just washing except for the front caps which I have reapplied because of removing the bug splatters.
