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HVLP setup

J

Jack345

Member
Is there a formula for setting supply pressure spray gun ? Example: if I regulate my spray pressure to 20psi with trigger pulled what is a good input psi number going to regulator ? Thanks
 
The air pressure would vary from gun to gun and the size and length of the air hose. At the regulator in most circumstances I set the regulator at 40 psi. I don't measure what it is at the gun.
 
(quoted from post at 19:49:15 08/05/17)
Save some cardboard boxes, those work great for a test surface when you fooling around with all the knobs....
Click to expand...
Yes but don't forget that cardboard is absorbent. The metal you're spraying isn't. Err on the light side, another coat is much easier than sanding out curtains.
 
(quoted from post at 19:39:53 08/06/17)
(quoted from post at 19:49:15 08/05/17)
Save some cardboard boxes, those work great for a test surface when you fooling around with all the knobs....
Click to expand...
Yes but don't forget that cardboard is absorbent. The metal you're spraying isn't. Err on the light side, another coat is much easier than sanding out curtains.
Click to expand...

True, but another coat on an already painted bit doesn't soak in like bare cardboard. I keep my test panels, they also act as floor mats when I'm on my knees or back trying to get the hoist arms located under the car....

My experience has been the runs are usually because I wasn't moving the gun fast enough, not that I had it adjusted wrong.

Getting a full, wet coat is what makes it glossy; especially when I was shooting single stage acrylic enamel. That's got to be the hardest to use stuff ever.

Last job was base, color, clear urethane, more money and time to cover a given job, but you could get a really good finish the first time you used it.
 
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