Here’s an overview of the actual powder-coating process:
- Metal surfaces are thoroughly cleaned
- Powder coating is applied with an electrostatic (or corona) gun. Thanks to the magic of molecular physics, the electrically charged powder sticks to the metal object.
- The object is baked at about 400 degrees Fahrenheit, which causes the powder to melt into a uniform film.
- The object is cooled, turning the film into a hard coating.
Many thanks to Derek, Dave, and Juan at Portland Powder Coating for patiently educating us on the process over the years—and for producing such consistent, high quality work!