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Old 07-27-2009, 01:11 PM
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Can you thin/reduce clear?

Is there a way to reduce it so it flows better? I notice if my first coat is a little rough the clear just builds on that 1st layer texture. If it was a little thinner it would flow smoother for less orange peel. Or how do the pros spray the clear so that it has minimal peel like a factory car? Thanks!

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Old 07-27-2009, 01:16 PM
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urethanes don't flow. you have to shoot for effect. you have to shoot it slick for it to be slick. adjust your gun.
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Old 07-27-2009, 01:17 PM
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so adjust the gun to spray more material? I see what you're saying sometimes in areas where I have it set to spray slick/wet the clear comes out smoother. What about air pressure?
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Old 07-27-2009, 01:26 PM
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Here it is in a nut shell.

http://autobodystore.com/ms6.shtml

Brian
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Old 07-27-2009, 03:23 PM
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first if your using a cheap gun all the adjusting in the world wont help.
set the gun up, 3/4 fan, 2.5 to 3 turns out on fluid, air wide open at the wall, set air to mfg recommendations. if you get orange peel you have too much fluid, if you get runs not enough air pressure . simple as that .
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Old 07-27-2009, 04:54 PM
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One mistake I was making that everyone helped me with is trying to "flow" the clear. I am using PPG and the tech sheet says 1.3 - 1.6 tip. I was using a 1.5 and trying to put in on thick. No matter what I did to adjust I could not get it to go on smooth. Then I totally analyzed everything people were saying including Brians article about solvents. I switched to a 1.3 tip and laid it on wet, but not too thick. Came out almost as smooth as glass.

Listen to Shine. He knows. Spray smooth... don't try to get it to "flow".

Last edited by markha; 07-27-2009 at 05:02 PM.
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Old 07-27-2009, 08:57 PM
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Don't be afraid to use thinner in clear, I usually do. Clear lays out very nice and I don't have to cut/buff unless there's dirt in finish. You have to play with it to see what works best for YOU.
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Old 07-27-2009, 09:08 PM
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I used a method of very lightly over reducing the clear by about 2% and upping the air pressure to 45 psi to help lay out my clear. I am however convinced the added air pressure was more a benefit than over reducing.

Vince
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Old 07-28-2009, 05:25 AM
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keep in mind reducing clear creates solvent pop . i only use 95 and only when it is 100+ even then i use very little. vince is right on 2-5% .
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Old 07-28-2009, 05:33 AM
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All good points....have you tried slowing down the drying time with a slower hardner? There are a lot of variables.but for a new guy the most popular mistake made is useing a cheapo paint gun,even pros have trouble with them,so save yourselves some grief and spend your hard earned cash on a good quality gun (minimum 200.00) because a good gun will make cheap paint look good but a cheap gun cant even make good paint look good.especially if the knobs fall of into your fresh paint.(its happend to me) LOL.
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Old 07-28-2009, 02:21 PM
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Quote:
Originally Posted by shine
keep in mind reducing clear creates solvent pop . i only use 95 and only when it is 100+ even then i use very little. vince is right on 2-5% .
Yep Shine and I allowed extra flash time between coats also. I was using 95.

Vince
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