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Old 01-28-2019, 03:31 PM   #21
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Crazing is usually cosmetic. Easy to drill out with a dremel, pain to fair due to small spaces and curves. Then the paint must be color matched. Sort of like the 10th coat of varnish. I know I should but it always ends up on the bottom of the list.

If it's a real wide crack, say a 16th or more, then I would put it at the top of the list.
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Old 01-28-2019, 03:51 PM   #22
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Re: Cosmetic cracks only that do not penetrate the laminate - Gelcoat cracks for a reason. Repairing them usually lasts for a year or two unless that reason is also addressed. Vast majority are due to flexing, some caused by improper application from the factory. Permanent fixes on these types are virtually impossible.
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Old 02-27-2019, 10:06 PM   #23
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Quote:
Originally Posted by djmarchand View Post
Gel coat is considerably harder and more brittle than the underlying fiberglass resin base, so it cracks sometimes because the underlying fiberglass flexes but the gel is too brittle. I believe that in most cases gel coat cracks are cosmetic and don't affect the underlying fiberglass or core. I would fill the bad ones, but as you imply they often come back.


David
i totally agree. i have a sea ray cruiser with a lot of cracks in the gel coat on the non skid portion of the bow. my fibreglass guy said they will not cause any water intrusion, its just cosmetic
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