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Need some advice what to use on the bottom my dum ass went a little to far sanding the bottom paint off and wound up removing a small section of gelcoat.Did not get into deep just exposed to bare fiberglass do I need to use an epoxy?
thank you in advance...Bill G.

Bill,

You should be adding a couple or more coats of epoxy barrier coat, and if so, you can skip the gelcoat, and add a little extra barrier coat on that spot...

Thank you, I should have mentioned not taking the bottom down all the way I was just doing a section that had chipped off should still just apply barrier coat? TXS Bill

Bill,

Epoxy barrier coat is a necessary item to keep water being absorbed into the fiberglass. Lack of a good barrier coat is just asking for osmotic blisters...

Thank you Patrick,not having done this before is there one you would recommend?Interlux watertite?or Interlux 2000e? are they considered barrier coats?

Bill,

Interlux 2000e would be my choice...

Thank you so much...Bill