IN ONE OF OUR APTS, THE KIND TENENTS ALLOWED CIGARETTES TO BURN SEVERAL AREAS OF THE TUB. ALSO USED AN ABRASIVE CLEANER IN EXCESS ON TUB BOTTOM AROUND DRAIN EFFECTIVELY REMOVING THE WHITE FINISH. I'VE SEEN EPOXY REPAIR PAINTS BUT THEY STATE NOT FOR USE ON FIBERGLASS. ANY THOUGHTS/SUGGESTIONS WOULD BE GREATLY APPRECIATED