Page "Airbrush" Paragraph 7

Some airbrushes use pressures as low as 20 psi ( 1. 38 bar ) while others use pressures in the region of 30-35 psi ( 2-2. 4 bar ).

Larger " spray guns " as used for automobile spray-painting need 100 psi ( 6. 8 bar ) or more to adequately atomize a thicker paint using less solvent.

They are capable of delivering a heavier coating more rapidly over a wide area.

Even with small artist airbrushes using acrylic paint, artists must be careful not to breathe in the atomized paint, which floats in the air for minutes and can go deep into the lungs.

With commercial spray guns for automobiles, it is vital that the painter have a clean air source to breathe, because automotive paint is far more harmful to the lungs than acrylic.

Certain spray guns, called High-Volume Low-Pressure ( HVLP ) spray guns, are designed to deliver the same high volumes of paint without requiring such high pressures.