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  #16 (permalink)  
Old 08-17-2012, 02:36 PM
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well the compressor is way too underpowered. But what does the regulator at your gun say for PSI with the trigger pulled?

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  #17 (permalink)  
Old 08-17-2012, 02:37 PM
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Originally Posted by tech69 View Post
I think it may be the tip, but also could be a number of things. I say this cause out here all the purple HF guns come with only a 1.5 tip. I don't think they make a 1.3-1.4. It could be just out here though, not sure. Do you know what size tip it is?

I also think cyclopsblown34 has some good tidbits. With an underpowered compressor the first couple passes will be ok but will quickly bog down, noticeable in atomization and sound of the hiss.

its funny you mention that i have 2 hf purple guns one was like $25 with a 1.4 tip and another one for $15 with a 1.5 tip there is'nt a big difference between the 2 i dont paint to often at all i have upgraded and still use them for primer but they worked good for little bit of paint ive done, although every one said when i was painting the mustang, why buy good ammo for the saturday night special...
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  #18 (permalink)  
Old 08-17-2012, 02:43 PM
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Sorry its 6hp max developed 2hp running 8.6 scfm@40 psi 6.4 scfm@90
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  #19 (permalink)  
Old 08-17-2012, 02:46 PM
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I use to think the same thing about the cheap purple guns. I bought more exspensive guns for painting until one messed up on me during a paint job. I didn't know what was wrong because I didn't have enough experience and it was a first time BC/CC. The base went on fine and when it came time for the clear it went on too dry. I found out the gun I was using was known to blow out the seals. I used a cheap purple gun because I had nothing left to loose. The HF gun worked excellent. That's all I use now. I can paint a car with one of those cheap purple guns no problem.
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Old 08-17-2012, 03:01 PM
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Originally Posted by Lizer View Post
well the compressor is way too underpowered. But what does the regulator at your gun say for PSI with the trigger pulled?
35psi at the regulator
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  #21 (permalink)  
Old 08-17-2012, 03:05 PM
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Leave the pressure at the compressor high. Use one of those adjustable pressure regulators on the botttom of the gun. Pull the trigger on the gun and adjust the pressure to where you want it.
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Old 08-17-2012, 03:17 PM
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Originally Posted by cutthroatkid View Post
35psi at the regulator
Yeah, way too low. If your gun tip pressure is supposed to be, say, 23 psi with trigger pulled, and your compressor is only set to 35 psi, your pressure is going to be WAY below that with the trigger pulled. You're hardly atomizing it.

On my Finishline III, to get pressure of 23 PSI with the trigger pulled, my wall regulator is set to between 80-90 PSI. I fine tune with the regulator on the gun.
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Old 08-17-2012, 03:19 PM
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Ok I had it on 35@the gun&35@the compressor
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Old 08-17-2012, 03:23 PM
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You need to set the gun pressure WITH THE TRIGGER PULLED. You will have to crank it up way higher at the compressor. Take it back up to 80 or 90 PSI. I'm assuming the 35 PSI you're telling me at the gun is not with trigger pulled.
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  #25 (permalink)  
Old 08-17-2012, 03:25 PM
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Nope didnt know to pull the trigger
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  #26 (permalink)  
Old 08-17-2012, 03:33 PM
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Originally Posted by cutthroatkid View Post
Ok I had it on 35@the gun&35@the compressor
maybe try uping the compressors pressure, i run my compressor @ 90 psi and bring it down at the regulator on the gun. but all my compressor are gas not electric. i have a 9 gallon 5.5 hp ridgid air compressor and an IR 25 gallon 13 hp compressor for work i usually use the smaller compressor since i don't feel like changing the settings on the larger 1, i run that @ 180 psi for the air tools and the smaller is usually at 125 but i tone it down to 90 psi and i painted my whole truck with the air compressor i had to run a massive water separator because it produced lot of moisture but it would keep up with my paint gun no problem.
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  #27 (permalink)  
Old 08-17-2012, 07:44 PM
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think I solved my issue it was not waiting the correct flash time. I shot a panel with a lite coat&waited a good while slick as snot
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  #28 (permalink)  
Old 08-17-2012, 11:51 PM
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so did you keep the same air pressure you had always been spraying at? (35 psi on gun, 35 psi on wall)
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  #29 (permalink)  
Old 08-18-2012, 01:58 PM
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Yes&doing one today with it@
100@comp 35@gun
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  #30 (permalink)  
Old 08-18-2012, 02:22 PM
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then I have to ask, why did you keep spraying at those low pressures if everyone told you they were too low?
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