What is powder coating?
Powder is a dry coating. Instead of being dissolved or suspended in a liquid medium, such as solvent or water, powder is applied in a dry granular form. This material is a little finer than ground pepper but coarser than flour, and is applied directly to the surface to be coated. The powder is created by blending the various components (binder, resins, pigments, fillers and additives) and processing them through an extruder into a continuous mass. This homo-genous mass is cooled and broken into small chips, which are then ground into the powder. Each particle contains within it the necessary components for reforming into the finished coating. After the powder is applied to the substrate (Part), typically using an electrostatic spray process, the substrate is place in an oven where it cures, melting the powder into a smooth film on the surface of the substrate.
