24 Sep
2006
24 Sep
'06
6:03 p.m.
It sounds weird but Sno Bol toilet bowl cleaner works great on dark specks on fiberglass. It basically has hydrochloric acid in it. And it gives your boat that fresh feeling. I don't know what it does to gelcoat or fiberglass over a long period but the friend who told me about it has been doing it for years.