An Automatic Spray Gun requires a high-voltage electrostatic generator, a pressurized coating material feeding device (pressure pump, pressure tank, etc.), and an electrostatic nozzle. The spray gun, developed originally from the airbrush, is used for less delicate work, such as applying lacquers, paints, varnishes, shellac, and other finishes to manufactured articles. The guns consistently deliver top performance and versatility for finishing metal, wood, plastics and more. The spray gun is a painting tool that uses compressed air from a nozzle to atomize a liquid into a controlled pattern. Automatic Spray Gun is very effective and useful.