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Old 05-16-2009, 07:41 PM
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anyway to get primer fillers to spray smooth

I am trying to get slicksand to spray right.I have thinned it 10 percent and adjusted the pattern and flow. Adjusted air pressure to gun pressure.The spray I get is not uniform and not even close to smooth.Does this stuff Just spray rough or is there something else wrong?The spray gun is a cheap hvlp gun with a 2.4 tip. Any help would be appreciated. thanks phil

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Old 05-16-2009, 10:29 PM
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A 2.4 tip? Wow. That's huge! It should hose out of that gun like no tomorrow. Thinning should NOT be required in this case, actually I would expect that your fluid needle should be choked off a bit to prevent to thick of a coat. So maybe something is wrong with your gun or gun adjustment.

Though I should add that Slick Sand will not ever lay out like a urethane primer will, it is essentially sprayable polyester putty...
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Old 05-17-2009, 06:49 PM
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You're not getting enough air. Let me guess, you have the old 3/16" ID quick-connect fittings? With these I can say for sure, removing the regulator and opening the air up completely will still not give enough "cap" pressure to spray correctly. Just a switch to larger HVLP style fittings will do you a world of good.

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Old 05-18-2009, 11:53 AM
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Practice on panels other than your car

Practice with different set ups, reducers, flow rates, air patterns. Rememeber painting is a process control experiment. Change one thing at a time, keep notes. Work with samples until you get the results you want. Then move to the car. Once you get it right shout Eureka!
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