Powder coating

Powder coating is a coating process used to coat electrical conductive material with coating powder. During the process, the powder is applied electrostatically or tribostatically to the substrate and is then cured under heat. Prior to this process, the material needs to be pre-treated by removing any oil or grease and, in some cases, by applying an anti-corrosive agent. The burning-in temperatures may vary greatly depending on the application. The burning-in process results in a permanent adhesion (purely mechanical fusion) and an evenly thick coating, which is achieved in part through coagulation (quasi-sintering) and in part through surface fusion of the particles.
The powder can also be applied via fluidized bed sintering. During this process, the heated material is briefly immersed in a plastic powder that has been fluidized by compressed air. Due to the heat, the material causes the powder to melt, forming a plastic coating on the material surface.

Rhenotherm Plastic Coating GmbH provides job coatings with various powders.

Order brochure “Anti-corrosive coatings”