Using function fillers in coating powder formulation
Although fillers are used in coating powder formulation to control costs and extend prime pigments, they are also used to improve or modify many functional properties of a coating powder.
This article examines three popular fillers-barium sulfate, calcium carbonate, and wollastonite-as well as a few other fillers used in coating powder formulation. It also looks at how the fillers are made and how they affect the functional characteristics of a coating, specifically gloss.