airbrush issues

ok but i dont think its that.  i might be the fact that i am using a cheap thinner from walmart.

On a dual action brush, be sure to stop the paint flow and then the air flow, otherwise little blobs of paint form at the needle and the next time you turn on the air, it splatters out.  Use it in this order: air on -> paint on -> paint off -> air off.  

thanks guys for that. i shall try that next time i work on it. and im working wiith mastermodel paint and ratio of 50/50 and the thinner i use is walmart off brand stuff. i gotta get new thinner :/

There is no correct number for air pressure.  It depends on nozzle size, paint viscosity, and the particular airbrush.  But, usually somewhere between 15 and 25psi works OK.

Try something thin, like food colors or ink on some paper towels.  If you can't get a nice spray pattern with that combination, then the airbrush is dirty or there is something wrong with it.  Feel the needle for a burr on the end.  If it sprays nice, then you have a paint problem.  It could be too thick, too old, or have chunks in it.  Or, you may just need to crank up the pressure a bit.

Don

I spray with a range of 15 to 20 psi.  Most common reason for spattering is insufficient cleaning between sessions.  Insufficient thinning of paint can also cause spattering.

With that setup, I would suggest 12-15PSI as a starting point.

connorMcclain

the ratio is correct and im using acrylics

What paint are you using (brand), what ratio are you using and what are you thinning the paint with? Remember that the lower the air pressure, the thinner the paint has to be.