Typically, gelcoat isn’t recommended over epoxy because they’re chemically incompatible and the gelcoat won’t adhere properly.
Is Marine-Tex permanent?
Rapid-Set Marine-Tex is a waterproof epoxy in a convenient 1:1 mix for emergency and permanent repairs.
Does Marine-Tex work on PVC?
Marine Tex® epoxy systems repair, bond and fill fiberglass, aluminum, plastics such as PVC, ABS, polyethylene (Starboard® Marine Building Sheet), inflatables, glass, masonry, ceramics, wood, dissimilar materials and more!