Advances in electrostatic coatings and paints

The polymeric powder particles are electrostatically deposit ed on a conductive grounded target in the powder electrostatic coating process. The powders are then melt ed in a furnace to form a protective and decorative coating. The powder coating process includes four essential steps: charging, transport, adhesion or deposition, and curing. The main rule of powder coating is to accelerate a polymeric charged particle toward a grounded workpiece and in this way the particles are adhered to the wo rkpiece by means of electrostatic force. The coated surface is then cured at a raised temperature which converts the powder coating into a glossy, and uniform polymer layer.