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  #1  
Old 12-06-2009, 07:31 PM
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Paint chemistry question

I am familiar with the iso's that are in urethane paint, but I am curious if the enamel paints contain them as well.

Also, has anyone sprayed the new water-based paints? I am curious how well those go down.

Thanks!

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  #2  
Old 12-09-2009, 12:28 PM
Admiral-Third World Fleet
 
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Location: Central FL
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Enamel paint, by itself, does not contain isocyanate, but the hardener has it. So, if you just shoot enamel, unhardened, that' s better for you, but not for your car.

Rick
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Old 12-09-2009, 06:15 PM
jmk jmk is offline
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Isocyantes aren't usually in single component automotive paints. For various reasons, it is not practical to use single component urethanes.

Single component automotive fininshes are usually acrylics and alkyds--acrylics being the higher quality of the two.

Waterborne basecoats do work well when sprayed correctly, but they are fussier and have specific issues.

There are plenty of links in the site discussing this.
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Old 12-10-2009, 08:51 AM
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Sometimes JMK forgets he's talking to us dummies!

1K paints don't have the iso's. 2K paints usually use the iso's in their hardeners. 1K = "one-part" paints you simply mix with a reducer and spray. 2K are paints you mix with a separate hardener PLUS a reducer to spray.

2K paints give a harder, glossier finish and are easiest to spray (in my opinion anyway). Proper mixture is the key for them.

1K paints are the simplest to use but usually require a bit of buffing to give you that "I'm blinded" gleam.

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