Hot tub superficial cracks
My husband and I recently bought a home with a hot tub. It seems to work OK, but someone has painted a whitish film onto about a third of the tub. We noticed that this section seems to have tiny superficial cracks in it. I'm guessing it was exposed to too much sunlight. The whitish stuff is starting to break down, and can be scrubbed off, but the cracks seem to attract algae buildup that is hard to scrub out. Is there a way to re-seal this section of the tub with some sort of smooth clear sealant that would hold up to the heat and bromine?