Lol! I guess you're right, Donna. We don't have any
fiberglass in our current house that I can think of, but I had a can of Gel-Gloss left over from prior to our move (when we did have a
fiberglass shower). I tried it out on the walls of the
Burro a bit today, and it seemed to work pretty well. There were some black scuffing type marks that, for the most part, it took care of.