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post #6 of Old 06-11-2019
scubadoo
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Re: Gelcoat cracks/crazing

I used the Pettit High Build Barrier coat (2) coats on a hull that looked similar to yours. I lightly sanded in between coats and then added two coats of their marine enamel. This was all for the topsides...not below the water line. Someone suggested that the crazing in the gelcoat would keep returning due to stresses created from different temperatures and general flexing due to normal use. I kept the boat in the water full time, sailed it often and sold it after a few years, but the cracks did not return.

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