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Old 11-10-2009, 02:58 PM
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Enamel engine paint problem.

I just painted my engine using an Alkyd enamel paint. After the fact i've been reading that there is a recoat window of an hour, or you have to wait like 7 days for curing to coat again.
My problem is i did 2 coats in about 45 minutes which is fine. But then i waited until the next day about 12 hours and put another 2 thin coats on.
It's been curing now less then 24 hours and i can still press my fingernail into it.
Am i screwed or will this eventually cure and harden.

Thanks for your help.

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Old 11-10-2009, 03:27 PM
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You used tractor/implement/Rustoleum or House of Krylon paint? It will take quite a while for it to cure. I'm thinking weeks if it is below fifty degrees. I used it one time and it took forever to cure. You can remove it and use some activator from where you bought the paint mixed in proper proportions and it will cure. Just take care to keep it plenty warm ,60 degrees or better to allow it to cure out for a day or so.
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Old 11-10-2009, 03:33 PM
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It was mopar engine enamel that i used. The temp the past few days has been between 60-70.
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Old 11-10-2009, 03:43 PM
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Aerosol? I'd think it woulda cured pretty much immediately. If it is alkyd though, it dries very slow in cooler temperatures.
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Old 11-10-2009, 03:45 PM
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Yes, aerosol. But it says it's an alkyd based paint on the can
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Old 11-10-2009, 03:45 PM
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Is this an engine you're ready to run? If so, cycle it a couple of times. Never getting it up to full operating temp till the paint is cured pretty solid. I think alkyd does stay a little soft forever though.
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Old 11-10-2009, 03:50 PM
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Engine won't be running for a few months. I appreciate your help with this. I'm not real familiar with enamels and i should have done my research before and not after the fact.
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Old 11-10-2009, 03:53 PM
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At least the longer it cures, the better it holds to the metal.
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