Paint won't dry

PopinJohn · Jul 6, 2013

First off, I'm a bona-fide dummy about paint, and my question has probably been answered before, but......
If I use rattle can paint on a carburetor, even after 24 hours under a heat lamp, it is still tacky, especially JD green.
I've tried JD, Rustoleum, Tractor Supply, same problem.
I think (don't know) that if I could buy JD green in a lacquer, maybe it would dry the same day. Does any supplier have AG colors in rattle cans that will work? Thanks in advance.
Comment?

CNKS · Jul 6, 2013

I don't use rattle can that much. But IH 2150 sold by CaseIH is the best rattle can paint I have ever used. The JD paint sold by the JD dealer should be the same as I think both are made by Valspar. If you mean JD green from some hardware or farm store, particularly Van Sickle, you are buying lousy paint.

PopinJohn · Jul 6, 2013

I should add that I'm talking about a cast iron carb that has been cleaned to bare metal with glass beads, and rinsed with clean paint thinner.
Paint just doesn't want to dry.

RandyB(MI) · Jul 6, 2013

24 hrs under heat and then let to cool and then is still tacky....it is junk!!! Shouldn't matter whether it is enamel ,acrylic enamel or laquer, still should be dry over nite unless you put on 7 or 8 coats heavy without letting each dry.

Stephen Newell · Jul 7, 2013

I wouldn't blame the paint. The rattle can paint may be junk compared to some other finishes but should dry and work fine for the short run. Usually when there is a problem with the finish drying it is having an adverse reaction to an unknown substance on the substrate. For example when I had a furniture refinishing shop an employee stripped a piece of furniture and didn't adequately rinse the residue of the remover well enough. The wood was sanded and it looked normal. I sprayed the furniture with lacquer which normally takes 10 to 15 minutes to dry to touch took two weeks to dry on this piece. I think if you would chean the carbuator with a wax and grease remover such as Dupont Prepsol Solvent or even lacquer thinner prior to painting you would have different results.

CNKS · Jul 7, 2013

Remove the existing paint, clean it good with wax and grease remover and buy decent paint--it is that simple. However, by the time you read all the responses it may be dry--but it is not going to last very long. Paint is hard to keep on a carb anyway, due to seepage of gas.

GordoSD · Jul 8, 2013

That "clean paint thinner" is your problem. Who made it? Is it mineral spirits? Reducer from an ABS supply shop? Professional prepaint solvent like Dupont Prep Sol.
Tell us what that was and who made the paint you used. Just one of those "didn't match up" moments and we have all had them.
Blast it again and try PrepSol wash prior to paint. If you used lacquer paint over enamel thinner it will never be right.

Paint won't dry

PopinJohn

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CNKS

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PopinJohn

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RandyB(MI)

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Stephen Newell

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CNKS

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GordoSD

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