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| finish gun pressure? http://www-.luthiersforum.com/forum/viewtopic.php?f=10101&t=45888 |
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| Author: | alan stassforth [ Mon Jun 15, 2015 2:31 pm ] |
| Post subject: | finish gun pressure? |
Just curious as to what pressure I should be running my gun at. I have an old Binks touch up gun, and usually set the copressor to 25-30 lbs. I recently bought a Finex gravity feed hvlp gun, and am trying to dial in the pressure, and had some new thoughts. Should I have a gauge at the gun, and go with the pressure as the gun is operating? I have been shooting shellac at a 1 1/2 lb cut. I want to get better results, so I don't have to do so much sanding at the end. Any advise would be appreciated. Alan |
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| Author: | Glen H [ Mon Jun 15, 2015 4:37 pm ] |
| Post subject: | Re: finish gun pressure? |
I pretty much ignore my gauge. I just hold the trigger down and increase the pressure until I get good atomization and pattern. Obviously, I start with the air flow control screw on the gun at stopped. Too much pressure and you're just blowing finish all over the place. Just takes a couple seconds and a couple trigger pulls. This works for me. |
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| Author: | alan stassforth [ Mon Jun 15, 2015 5:59 pm ] |
| Post subject: | Re: finish gun pressure? |
Thanks Glen. That's pretty much what I do. Alan |
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| Author: | B. Howard [ Tue Jun 16, 2015 7:37 am ] |
| Post subject: | Re: finish gun pressure? |
I run a regulator right at my gun. static feed pressure is usually around 80psi, constant flow pressure is around 25-30 psi. Here is a link to an article i did a little while ago on setting up a spray gun and proper use. http://howardguitars.blogspot.com/2015/ ... brian.html |
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| Author: | alan stassforth [ Tue Jun 16, 2015 11:32 am ] |
| Post subject: | Re: finish gun pressure? |
You rock, Brian! Exactly what I needed to read. I'll give that a go, today! Last coat on an instrument called a phin, pronounced pin. Alan |
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