How do you fix hairline cracks in gelcoat

02-22-2007, 06:55 AM

bigshrimpin bigshrimpin is offline

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Join Date: Mar 2003

Posts: 1,597

Re: How do you fix hairline cracks in gelcoat

Gotta grind them out one at a time, tape off the area, use a toothpick to apply gelcoat to the gaps, and sand flush with the existing surface. Lots of time . . . but I agree with GMC . . . something isn't right there. If you've got larger cracks or voids thicken the gelcoat with cabosil.

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