What's the difference?|General Taxidermy Discussion|Forum|Taxidermy Talk

Single action airbrushes have settings on the brush that control the amount of paint released, and the operator just presses the trigger to release the air and paint. A double action may or may not have the same settings, but when the trigger is depressed releasing air and paint, it can at the same time be drawn back releasing more and more paint at once depending on how far back the trigger is drawn. Both brushes work fine for painting gameheads. If I was working with fish, or something that needed more precision and control, I would opt for a quality double action.

I like the single actions myself, mainly because they are easier to keep clean. The internal mix/double action ones I had got clogged up much, much faster, which makes sense, because the air/paint are being mixed internally before coming out the nozzle. The single action mixes them externally.