Go to paint - gun clogged

Dyzfunctionz

New Hunter
I feel like an idiot for posting this, but I guess it's better to be safe than sorry.

I went to go put the base coat on my fett helmet and as soon as I put in the Humbrol paint into the airbrush it starts sputtering and eventually quits. The Humbrol enamel seems very very thick and sure enough, once I cleaned it out with Acetone it starts flowing good again.

Are you supposed to use an enamel thinner with the humbrol paints? I heard it should be the consistency of milk. Help is appreciated!
 
In my experience, most of the Humbrol colors had a different consistency so they required a different amount of thinner for each one. I used Humbrol enamel thinner for the paint, but used no name mineral spirits to clean the brush and it worked fine.
 
I feel like an idiot for posting this, but I guess it's better to be safe than sorry.

I went to go put the base coat on my fett helmet and as soon as I put in the Humbrol paint into the airbrush it starts sputtering and eventually quits. The Humbrol enamel seems very very thick and sure enough, once I cleaned it out with Acetone it starts flowing good again.

Are you supposed to use an enamel thinner with the humbrol paints? I heard it should be the consistency of milk. Help is appreciated!

Milk might be too thin. As Bounty1138 and DVH say, the amount of thinner varies with color, or as I have found, with each tin depending on how long it's been sitting around, so you have to eyeball it, but in general I find diluting about 1:1 with thinner (sometimes a bit less, I don't think I ever used more) is a good rule of thumb.
 
Ok well new problem.

This is frustrating especially since... I paint stuff for a living! But I use Cerakote which is a ceramic based finish and it requires no thinner. But still...

In both my airbrush and my Iwata HVLP spray guns, the Humbrol paint just dribbles out of the nozzle. The only way to prevent it is to turn down the flow almost all the way. I've adjusted, played with settings, etc and unless I want to spend 3 hours painting one coat on the helmet, the paint dribbles out.

This does not happen with ANY other paint, acetone, etc. I filled the resevoir up with Acetone and watched it for a few minutes. Not a drop dribbled out. I added my humbrol paint (thinned with mineral spirits) and it drips out of the nozzle at a steady rate. I'm completely confused. How can this relatively thick paint dribble out but Acetone and other paints do not?

Any advice would be appreciated....
 
Ok well new problem.

This is frustrating especially since... I paint stuff for a living! But I use Cerakote which is a ceramic based finish and it requires no thinner. But still...

In both my airbrush and my Iwata HVLP spray guns, the Humbrol paint just dribbles out of the nozzle. The only way to prevent it is to turn down the flow almost all the way. I've adjusted, played with settings, etc and unless I want to spend 3 hours painting one coat on the helmet, the paint dribbles out.

This does not happen with ANY other paint, acetone, etc. I filled the resevoir up with Acetone and watched it for a few minutes. Not a drop dribbled out. I added my humbrol paint (thinned with mineral spirits) and it drips out of the nozzle at a steady rate. I'm completely confused. How can this relatively thick paint dribble out but Acetone and other paints do not?

Any advice would be appreciated....

That's a stumper to me, sorry you're having such troubles. I don't know the exact difference between mineral spirits and paint thinner, but it may be your problem is there. I use a Testors brand (https://www.amazon.com/gp/product/B0038D91QU) paint thinner to dilute my humbrols, and an off-the-shelf bulk paint thinner to clean up afterwards, and I've never seen the dribbling you describe. Maybe take DeathProof's advice and clean your airbrush thoroughly and start again with a fresh tin, diluting slowly (maybe start at about 2 parts paint to one of thinner) until you get proper flow without dribble.
 
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