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Old 07-10-2008, 02:15 PM
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Default gelcoat cure time

I have a gelcoat repair to do to my keel, just wondering how long it takes to cure. Also is it a good idea to put the boat in the water the day after the repair?
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Old 07-10-2008, 02:19 PM
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Default Re: gelcoat cure time

It depends on how strong you make the gel coat with catalyst. In otherwords the more catalyst the faster the gel coat hardens. Personally I would let the stuff harden a couple of days before getting wet so it totally cures, but I am not an expert..
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Old 07-10-2008, 03:45 PM
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Default Re: gelcoat cure time

Don't put too much catalyst in it..it will bubble up.
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Old 07-10-2008, 08:24 PM
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Default Re: gelcoat cure time

30 minutes is usually enough time. Do NOT add too much catalyst to the gel coat; the usual result of that strategy is that the gel coat does not kick at all.

I would not hesitate to use the boat the next day.
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Old 07-10-2008, 11:04 PM
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Default RE: gelcoat cure time

Use the correct amount of catalyst and it should harden in a few hours. Gelcoat comes two ways, finishing and laminating. The finishing will harden is air, the laminating requires that it be sprayed with something like PVA to make it harden.

I would not be concerned with using it the next day.....
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