Single And Double Action Airbrushes

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New to airbrushing and not sure what the difference between single and double action airbrushes is?  Your at the right place! I will as straight forward as possible break down the single and double action airbrush for you. By the time your done reading this you will know the difference between the two and also know which is right for you.

Single Action Airbrushes:

single action airbrush

Ill cover the single action airbrush first since these are the least popular of the two. Single action airbrushes have a trigger system that control both air and paint in one action. So when you press the  trigger of a single action airbrush down your going to get both air and paint with no real control over either. These type airbrushes are not good for much as far as custom painting, or fine airbrush art goes unless you happen to be Don Eddy.

Single action airbrushes are good for applications that do not require infinite control. They are good for base coating models and covering large areas without detail. Most single action airbrushes are also external mix airbrushes. This means that the paint and air mix outside of the airbrushes nozzle. Double action airbrushes are just the opposite. Single action airbrushes also cost much less than double action airbrushes.

Double Action Airbrushes:

double action airbrush

Double action airbrushes feature a trigger system that controls both air and paint. When you press the trigger of a double action airbrush down you are controlling the air flow. When you pull back on the trigger you control paint flow. Thus the term double action airbrush.  This system offers infinite control over the paint flow of the airbrush allowing artists to pull off amazing detail and effects. I recommend the double action airbrush 99% of the time.  In my opinion it is silly to consider a single action airbrush when a double action will do everything a single will do and then some.

Double action airbrushes are generally more expensive than single action airbrushes. But in the end you get what you pay for. Most, if not all double action airbrushes feature an internal mix system that mixes the paint and air in the head end of the airbrush before it is released. Internal mix systems offer much better atomization over external mix systems. This is the other huge benefit to buying a double action airbrush.

So now you know the differences between a single and double action airbrush. You also have an idea of what internal and external mix systems are. This information should help you make a more educated decision when it comes to purchasing your next airbrush.


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