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In this post not will I only cover the correct spray gun air pressure that’s needed for a great paint job, but I will also touch on HVLP, LVLP spray guns and air compressors.
When I talk about air pressure, I don’t mean air cap pressure. I am referring to air pressure at the neck of your spray gun dial when the trigger is pulled.
Let;s get into it shall we?
High Volume Low Pressure Spray Gun (HVLP) Air Pressure Setting for Base Coat Clear Coat
When spraying base coat you want to spray at about 26-29 PSI. They way you read this is at your gun, trigger pulled air flowing through and your dial reading 26 psi.
When spraying clear coat I like to up the pressure 2-3 psi for a little more atomization and better flow out. Setting the air pressure to about 28-29 PSI for clear will ensure you having great flow out.
Most HVLP spray guns will use 10-14 scfm at 40 psi. This is volume of air pressure per cubic foot.
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Post time: Mar-19-2017