Powder Coating

What is that on those metal car parts? That is what is called powder coat. It is specially made to work on metal items. Powder coating companies need to be specially certified to do this type of work. Usually the most recognized certification is ISO9001-2000 witch a company needs to get before starting to finish the parts for their customers.
Therefore, what is powder coating? I will tell you but before we get there, I need to give you the history of powder coating. “The history of powder coating begins in the late 1940s and early 1950’s, at a time in which organic polymers were still being spray coated in a powder form onto metallic bases. Dr. Erwin Gemmer, a German scientist, then developed the fluidized-bed process for the processing of thermosetting powder coatings and registered an appropriate process patent in May 1953. Between 1958 and 1965, literally all powder coatings, generally only functional applications with a film thickness of 150 µm to 500 µm, were processed by means of fluidized-bed application. Electric insulation, corrosion and abrasion resistance were in the foreground. The coating materials in those days were comprised of nylon 11, CAB, polyethylene, plasticized PVC, polyester and chlorinated polyether, among others, and at the same time, thermosetting epoxides. Like dishwasher baskets (PVC), for heat insulation (epoxide), for boat accessories (nylon) and metal furniture (PVC, CAB). It was the Bosch Company that developed the basic type of epoxy resin powder in their search for a suitable electric insulation material.” (The history of lacquers and colors)
      Powder coating is a type of coating that is applied as a free-flowing, dry powder. The main difference between a conventional liquid paint and a powder coating is that the powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form. The coating is typically applied electrostatically and is then cured under heat to allow it to flow and...