During this process, electrically charged particles of the coating powder and the material that is to be coated attract each other. The powder is charged by an electrode in the spray gun. The material is earthed in a manner that an electric field is formed between the material and gun. This field transports the powder particles to the material's surface.
The subsequent curing of the coated materials at temperatures between 160 and 200°C ensures that the applied powder particles are interconnected to form a smooth and even surface finish.
The powder paints (on a polyamide, epoxy or polyester resin basis) offer good protection against scratching, impact, corrosion and the weather. Powder paints are available in almost all RAL colours and can also be used for decorative purposes.
- Decorative and functional powder coatings