The working principle of electrostatic powder coating is almost the same as that of ordinary liquid coatings, except that powder spraying is dispersed, not atomized. It is a coating sprayed by an electrostatic powder spray gun.
While dispersing, the powder particles are negatively charged. The charged powder particles are affected by the air flow (or other forces such as centrifugal force) and electrostatic attraction, and are coated to the ground. Then, it is heated and melted to form a film. The electrostatic powder coating method is a powder coating method which is dominant in the industrial coating field.