Ok, so I bought this http://www.harborfreight.com/20-oz-h...gun-47016.html to try on small projects. I have the Milwaukee HVLP/Airless combo, but that thing is too big for small projects. The gun is hooked up to a PC 6gal compressor, with proper regulation & filtration.
I tried spraying a 2lb cut of shellac from flakes, no go. So I diluted to almost a 1lb cut, still no go.
Here is what happens: If I dial the air pressure at the gun to near zero, the gun will "squirt" a solid stream of shellac. As I increase airpressure, I get nothing but air from the gun, and the shellac in the cup gurgles like boiling water.
I tried adjusting everyting on the gun, and I took the gun apart before using it and cleaned everything with mineral spirits as the manual suggested.
Any thoughts? Bad Gun? My compressor not big enough?