Compressed air regulation

Air regulators look like large knobs that you turn to fine-tune the pressure and flow of air delivered. The supply of compressed air for paint application is usually at 0 to 4 bar. The air regulator for paint application is placed either at the compressor outlet, on the filter, or even sometimes before the gun.

Used to adjust the air pressure, the regulating devices may be unsuitable for the practice of body painting, for example if they are not designed to deliver a sufficient air flow. Whether wall-mounted regulators or regulators connected directly to the gun, some regulators or pressure gauges are therefore restrictive.

Regulators for paint application

The supply of air must be constant and regular.
For this, the capacity of the regulating device must be greater than the demand of the gun. Otherwise, the flow decreases as you paint, and the qualities of the paint jet change, which creates defects.

How do you know ?
A very simple technique to perform on your air regulator for paint application, which consists of reading the pressure level on the pressure gauge when in use and when not spraying : the difference does not must not be greater than 0.4 bar.

Low pressure

By adjusting a low pressure (from 0 to 2 bars), you can make small touch-ups at a short distance from the support. In the extreme, we can make a "speckled" effect. A pressure that is too low does not allow a product to be projected and atomized correctly: it creates an “orange peel” surface.

High pressure

Too high air pressure (above 3.5 bar) sends out too much paint, and can even cause it to “air dry” before it gets to the substrate. The result: runs or a powdery effect. Likewise, strong pressure can cause the paint to bounce off the support.

The air compressor to project the paint
The air filters to apply the paint
The hoses for compressed air
The pneumatic fittings for airbrush and spray gun