Single Action Airbrush

A single-action airbrush is a type of airbrush tool where the trigger controls only the airflow.

The paint flow is pre-set using a separate adjustment, and once you press down on the trigger, air and paint are released simultaneously at the fixed ratio.

This design is relatively simple and is often recommended for beginners or for applications where consistent coverage is more important than fine control, such as:

  • Base coating

  • Broad shading

  • Applying varnishes or primers

  • Craft or decorative projects

Key Features of Single-Action Airbrushes:

  • Trigger controls air only — paint amount is adjusted manually beforehand.

  • Simpler operation — easier to learn and use.

  • A consistent spray pattern is good for uniform coverage.

  • Lower maintenance — fewer moving parts make cleaning and disassembly easier.

Single Action vs. Double Action Airbrush: What's the Difference?

Feature Single Action Airbrush Double Action Airbrush
Trigger Function Controls air only Controls both air (press) and paint (pull)
Paint Flow Control Pre-set with knob or screw Adjustable in real-time while spraying
Ease of Use Beginner-friendly Requires practice and coordination
Spray Versatility Limited to consistent output Allows variable line width and detail
Best For Large areas, simple tasks Fine detail, gradients, complex artwork
Common Use Cases Hobby base coats, stencils Illustration, miniatures, custom painting

When to Choose a Single-Action Airbrush

Choose a single-action airbrush if:

  • You are new to airbrushing and want a low learning curve.

  • You plan to use it for consistent, repetitive tasks.

  • You want a more affordable and lower-maintenance tool.

  • Fine detailing and line control are not the priority for your project.

In summary, a single action airbrush is a straightforward tool ideal for uniform applications, while a double action airbrush offers more versatility and precision for experienced users or detailed work.