vwbobby wrote:Your compressor should be at 90-120 since you're using a diaphragm regulator at the gun. This makes it so you have a little more reserve pressure in the line and less noticeable pressure drop.
I wouldn't run the Astro guns at 26lbs.... they spray best at 19-22 for me, but its up to you. I get more orange peel with pressure.
Did you try running your gun STRAIGHT off the hose (with the bubble type filter attached) and the compressor regulator set around 25-28lbs? This will tell you if your gun regulator is the problem or the gun itself isn't spraying right.
I have my regulator on tank set at 110 area. My compressor kicks on at 90psi and stops at 120psi I think? When I am doing the test sprays its usually in the 100-120psi range.
I'm spraying ********** Universal Clear, which I think is fairly high solids. I did my first at ~36-40psi at the gun regulator which gives me ~19psi with trigger pulled. I had orange peel and flash times where way slow. Barry (********** owner) recommended 26 at gun, on site I knotice he uses an IWATA LVLP which is what this is a copy of, although they spray very different. I was told something like "pressure is too low, solvents are not kicking out" (sorry something to that effect), I was tacky after 45 minutes. I bumped gun up to like 70-80psi at regulator (only 21-22psi with trigger pulled) and flash times were down a lot to like. It was defantly better but I don't get the whole pressure with trigger pulled thing, I can not get it past 21-22psi with either Astro Gun. I bought a cheap standard regulator and set it at 80psi at the gun and only get 18-19psi with trigger pulled. It seemed to lay fatter with the regulator bumped way up, but I got some little solvent pops? Picks in other thread.