1 part this 1 part that.

Monster are you asking what 1 to 1 is? 1 drop to  1 drop or 1 gal. to 1 gal. as in equal parts.

2 to 1= 2 drops of say thinner to 1 drop of paint.

?????

Tony Lee

Not a airbrush guy but I do recall many thinning the paint to the consistency of 2% milk. Its all relative to how thick the paint stock is, preferred air pressure and the guns nozzle. Experiment to find what works the best for your set up.