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Old 01-10-2019, 10:38 PM
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Enamel mixing

Hello fellas I'm new here and looking for a little advice I have a 78 Malibu that's prepped and ready for paint,the only problem is I have a single stage acrylic enamel metallic paint but all I have is urethane reducer and urethane hardener what I'm trying to find out is with the urethane/hardener work with the acrylic enamel metallic paint?

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Old 01-11-2019, 04:47 AM
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Moving to Paint forum... paint tech questions go in this forum.

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Old 01-11-2019, 07:45 AM
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Urethane grade reducer in enamel is a better grade reducer in a lesser paint. That will be fine. Most acrylic enamel will dry without a hardener but the durability won't be as good.

Enamel and urethane are slightly different paint chemistry. You could add the urethane hardener in the enamel it and it goes sideways on you. Anything from ruining the paint and turning it into cottage cheese when you add the hardener, kicking off before you can get it sprayed, or to ending up with a finish that never quite hardens.

Get the right stuff for that particular brand of paint. The same brand of hardener will usually produce better results then substituting another or generic off branded hardener.
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Old 01-11-2019, 08:03 AM
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The last thing I want to do here is just be negative but........If you are not an experienced painter, you may want to re-think using the acrylic metalic single stage, or any metalic single stage for that matter.

You will not be able to correct any runs or dry spots with the single stage without ruining the metalic. It just is not a practical way to spray a metallic. You won't be able to find many professional painters that would do it.

Again, I am not trying to be negative but just offering constructive advice.

John
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Old 01-11-2019, 08:05 AM
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Quote:
Originally Posted by Hyoctane View Post
Hello fellas I'm new here and looking for a little advice I have a 78 Malibu that's prepped and ready for paint,the only problem is I have a single stage acrylic enamel metallic paint but all I have is urethane reducer and urethane hardener what I'm trying to find out is with the urethane/hardener work with the acrylic enamel metallic paint?
Maybe -- or likely. Opinions will vary.

Restoration Shop seems to be sending out urethane hardeners with their acrylic enamel paints.

Reducers I would worry less about. A lot of cans I've read say to "use a urethane grade reducer" but don't really mention anything more specific.

Edit: What products do you have, specifically?
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Old 01-11-2019, 08:12 AM
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Quote:
Originally Posted by John long View Post
The last thing I want to do here is just be negative but........If you are not an experienced painter, you may want to re-think using the acrylic metalic single stage, or any metalic single stage for that matter.

You will not be able to correct any runs or dry spots with the single stage without ruining the metalic. It just is not a practical way to spray a metallic. You won't be able to find many professional painters that would do it.

Again, I am not trying to be negative but just offering constructive advice.

John
Totally agree here.

Another option would be to find a compatible clear coat and spray the metallic enamel as though it were a base coat i.e. with no real concern over it's slickness/gloss on the final coats.
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