Airbrush Paint mix

The only thinner you would need to be carful with is laqure thinner. In fact i  my self would not use it with any plastic airbrush ive seen first hand what that stuff can do my father used to own a few body shops and i played around alot with lauqure thinner, so be careful.

Thanks everyone for the great help i just have another question and hope u dont get mad cuz i make a lot of question I'm a beginner on AB, my AB has a plastic bowl where i put the paint its dangerous if i put the Paint mix with thinner cuz thinner destroy plastic well the plastic of my AB looks hard

Shellback said it right.  Practice and experience.  When I mix, I pull a little of the paint on the side of the AB bowl because I never remember how thick milk is.  If the paint goes back in the bowl well, then I'm ready.  You'll know if it is too thick.  If the AB doesn't spray well, doesn't spray or sputters then you'll know.  I'm sure we all know.

Thats the main thing to do , "PRACTICE " .

SHL

Yes u understand my question, thanks I would do what u tell me i would need 2 practice a lot cuz this is my 1st airbrush

If I understand your question correctly:

Reduce paints to spraying viscosity with thinner. For many paints, the ratio of thinner to paint is approximately 1:1. This does vary quite a bit, however.

The very general rule is to get the consistency of 2% milk.

You have to experiment and practice, practice, practice!