http://www.fiberglassrv.com/forums/f...ell-43004.html
I think this may be one of the longest threads in the place. But I will say the stuff really works and saves you a bunch of money.
It turns out a couple of common floor waxes are the same "recipe" as the expensive
fiberglass polishes, only with a whole lot more or the active ingredient because floor wax you walk on. Can buy a gallon for less than a quart of FG polish.
Some observations and caveats:
Good cleaning is essential - however power buffing is not required. The wax "fills in" the pits and after about 3 or 4 wiped on coats (no buffing required) you end up with a smooth reflective surface.
Takes several coats - I use those micro fiber wash cloths, and by the time I work my way around a 13 ft.
Scamp wiping a thin coat on it's dry back where I started. So I just circle the trailer wiping it on until I get a deep shine. Don't do it in full sun, dries as you wipe.
You can remove it BUT if you plan on
painting paint will "fish-eye" over any residual wax so might be best to not wax if your going to
paint because you will have made a lot of extra work for
paint prep.
Thin coats - Drips have to be wiped off immediately. Stuff hardens as it dries and you have to use ammonia and water to strip that spot to remove it once it dries. Or the manufacturer makes a stripper. But watch for drips and runs.
Still good on newer surfaces but where it really "shines" is on older FG with all it's micro pitting. Filling those pits in creates a smooth shine & a lot of depth.
One of the products is no longer
sold but the other is still on the market. And the discontinued product may have a replacement. Might want to read first couple of pages in that thread and then skip to the back to get latest info.
Not the best picture to show shine but if you look at back left corner of roof between the
windows you can see the shadow from trees reflected in the surface of my 1977 so I'm pretty satisfied.