When I tip my gun downward...

[Robb]

excess powder DUMPS out, causing me to have to blow off all the powder and start the whole piece all over. I'm using a household oven, so anything like a wheel has to be laid flat, so I have to spray down at it to get most of it. It's frustrating the hell outta me. What can I do to change this? I notice the amount of powder in the cup has something to do with it, but you can only remove so much before it won't work at all.

I need to get a bigger oven up and running, hanging parts would be soooo much easier.

[Zpider]

What airpressure are you using? In my first tests with the gun i noticed that anyting under 1 bar made it flow irregular, once up to 1.1 - 1.2 bar it started to flow correct and no buildup in the nozzle.

What pressure do you all use with the caswell gun?

[Electrathon]

Originally Posted by Robb

excess powder DUMPS out, causing me to have to blow off all the powder and start the whole piece all over. I'm using a household oven, so anything like a wheel has to be laid flat, so I have to spray down at it to get most of it. It's frustrating the hell outta me. What can I do to change this? I notice the amount of powder in the cup has something to do with it, but you can only remove so much before it won't work at all.

I need to get a bigger oven up and running, hanging parts would be soooo much easier.

My guess is you are using a hotcoat gun, mine does the same as what you are lalking about sometimes. My Caswell style gun was less suseptable to this, but would still do it if there was a full bottle on it.

To cure this, keep the gun LESS than 1/3 full, the less the better. Adjust your air preasure up slightly, about one and a half pounds more. Mine sprays well when virtually empty at about 9 psi, if I have more in it at about 10.5 psi. If you want to use a fuller gun, go up to about 12 psi and back away a few more inches. I like keeping the preasure down and putting on less powder, there is less waste to overspray that way. If I was doing a frame or something I would up the preasure. You might also try a fluidizing tip, the powder comes out in a more forward pattern that way.

i use a hotcoat an i go no higher than 10 psi .. i shoot it at 8-10 psi . i do have a caswell type gun i shoot at 8-9 psi...

change the deflector plate to the one with 5 holes and you will be fine .. i tossed my stock deflector it was not giving the max performance that i wanted .... i got a pro gun ...

[johnny933]

Just wondering about what you mean by these guns......whats a hot coat gun, were do you get them?

[jtagger19]

I had a similar problem with a gun I have
there is a plastic screw under the gun right in front of the trigger that controls the amout powder that goes out the front , if it's open too much powder will drop out the front even with no air
check that atleast that fixed my problem.

[dsacco1013]

Hot Coat gun is the enemys gun (eastwood)