Hey all, today i decided to try out my vallejo air paint on my marder IIIm. It went on great at first, probably 20 minutes worth of painting. But as time went on, the vallejo air paint started to clog around the needle, making the spray become very spattery and incosistent. I would clean the needle off and start painting again, but it would start clogging up around the needle in no seconds flat. I'm shooting at around 15-25 psi, and using denatured alcohol to clean the airbrush parts when paint buildup occured. What am I doing wrong...or what is my airbrush doing wrong?
Ian

Isnt Vallego Air already thin enough to shoot? You might be over thinning it.. And alcohol evaporates rather quickly, could be the reason you are getting the clogging..

Dave

Im not thinnning the paint, but when it clogs up i clean the parts with denatured alcohol.
Ian

Ian, I found that any type of alcohol reacted poorly with Vallejo Model Air paint and tended to turn it to a gooey mess. Perhaps the alcohol that you use to clean the needle is part of the problem. I also found that I really needed to thoroughly clean my airbrush (Rich Pen AB 300) after about 20 to 30 minutes of painting with VMA. I thin VMA with a mix of Vallejo Thinner, water, Liquitex Flow Aid and Liquitex Sow-Dry and clean my needle every 5 min with the same mix. Also, I usually use Tamiya paint, similar in color, as a base coat and apply the VMA over it. HTH, Rich

I have the same problem with vallejo paint ... and it's worst with the primer of gameshop made by vallejo ... I just conclued that it was normal ...