Do I need to use a spray gun gauge?

For (None Digital) gravity fed spray guns a gauge control is used to regulate the amount of air,

enabling an accurate predictable atomisation (mix of air and paint). Works in combination with spray fan pattern size control (knob adjustment). This means you can work slowly with a small fan or faster with a larger fan.
Air control is usually in conjunction with wall filter regulators.

 

 

 

 

 

 

Next – How to set up a spray gun?