Air doesn't stop coming out of my Patriot 105 airbrush nozzle

I think you have a mismatched needle/ nozzle combo.

It sounds like you have a sticking O-ring in the air valve assembly. This can happen because of paint leaking back into the air valve, which is rare, or cleaning solvent finding its way back into the air valve.

If you soak the body of the airbrush in a solvent when cleaning, never immerse the air valve. This may cause the O-ring to swell, causing sticking. If you have access to some Badger regdab lubricant, remove the air valve from the airbrush body and apply a little to the O-ring. Alternatively, a little silicone lubricant will also do the job. 

EDIT: Don't use a mineral oil based lubricant (eg. 3-in-1 oil) as this will cause the O-ring to swell and/or degrade.

Second trying the lube on the air valve. I had an incident with my new airbrush when some IPA leaked into the air valve area causing it to stick really badly. Panic rather quickly set in thinking I had totally ruined my brush . A drop of paasche lube onto the air valve was enough to solve the issue.

My Iwata has acted like that since the day I have bought it.  I have learned to work around it.  Piece of junk.

The guys have given you good advice.  If the O-ring has swollen from solvent, let it air out a couple days and it may shrink back.

Concerning Chuck's Iwata: The Iwatas have an O-ring in the body that the trigger pin passes through.  They need a tiny bit of lube once in a while or they will stick.  Remove the trigger and use a toothpick to put some Regdab or Superlube in there.  You shouldn't have to do this too often.

Don

Everyone is correct with the o ring. A little lube will fix it. And Iwata airbrushes are far from a piece of junk.

Thankyou for your replies everyone.

So I'm beginning to believe that I did something I shouldn't have.

After I use my Patriot 105 I emptied the gravity cup of paint and then

would fill up the cup with rubbing alcohol and windex and let it sit overnight.

Something I learned on youtube.

So now I'm going to empty the patriot 105 and let it sit, and see if that fixes the problem.

Scott

There is some bum dope on YouTube.  I once saw a guy use vice grip pliers to pull a stuck needle out of an airbrush.  In one, a woman pulled an airbrush completely apart to soak it after every use.

I wouldn't soak an airbrush in Windex.  If it contains ammonia, it will eventually damage the chrome.  Rather than soak, you would be better off just to take the time to clean the dirty parts.  It really doesn't take that long to do a proper job.

Use a small allen wrench to disassemble the air valve.  Don't lose the little spring. Clean the inside of the valve body with a pipe cleaner and solvent or airbrush cleaning solution.  Let the pin sit out in the air for a day or two, then try it and see if it works better.  If it doesn't, you probably will have to replace that little O-ring.

Don

Thank you Don I appreciate the feedback