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Old 09-18-2013, 02:31 PM
cdh11 cdh11 is offline
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Join Date: Jun 2012
Boat: Mastercraft X15
Location: Saskatchewan
Posts: 59
How long does gel coat last without hardener...

Hey guys. I got some gel for a couple minor spots on the boat in the spring thinking I was going to get to it during the season but I have had too much fun using it to fix the spots.

If I had the gel in a sealed container and didn't put any hardener in or anything should it still be OK to use now that it is fall?

Is there a way to tell if it isn't OK to use (will it be dried up, if not sealed properly) I haven't opened the container yet.

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Old 09-18-2013, 07:43 PM
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airwear airwear is offline
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Join Date: Sep 2004
Boat: 2000 Mastercraft Prostar 195 - LTR, ZeroFlex Tower
Location: Toronto, Ontario
Posts: 118
It will be perfectly fine. I just wouldn't use too old hardener.
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Old 09-18-2013, 10:22 PM
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CC2MC CC2MC is offline
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Join Date: Aug 2012
Boat: 2005 x-10
Location: Alabama
Posts: 1,405
Typically the shelf life of gel coat is around 3-4 months at around 70 degrees. For every 10 degrees higher, the life is generally cut in half. You can refrigerate it to make it last a little longer, but you need to warm it up before you can use it. Fresh catalyst or hardener is a must as airwear said.
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