POWDER COATING MANUFACTURING PROCESS
Powder coatings typically contain:
– Binders (resins, hardeners)
– Additives
– Pigments
– Filler
Powder Coatings are manufactured in three steps;
Raw material mixing: All chemicals of the formulation are weighed and pre-mixed with the mixer during a known time until homogeneous mixture is obtained.
Extrusion: In the extruding process, the blend is melted and dispersed. After cooling rollers and belt steps, the material is broken into small chips.
Grinding in a fine powder: Those small chips are grinded at appropriate intervals (particle size distribution) for different applications. When an optimum particle size is obtained, the powder is packaged which is ready for use.