Here's the situation, the PO somehow painted the Cruiser with a very heavy coating of sand. I have stripped all of it off the metal parts using a chemical stripper but I'm very cautious of using it on the fiberglass. I can't take a chance on damaging it. Is there a chemical stripper that works on removing surface coating off of fiberglass. Using mechanical means like an angle grinder with a cup brush can be kind of aggressive sometimes so I'm trying to stay away from that approach.