TN Boatman
Member
Believe it or not, Shout stain remover for clothing works great. I was cleaning the hull of Waverunner one day and had run out of hull cleaner and thought "I'll give it a try" Tough on stains yet easy on fabric so must be OK for my fiberglass and gel coat, right? Worked great! Light scrub and was clean as a whistle.Currently have a bottle of Attwood Hull Cleaner I bought at WalMart.