Polyester Powder Coating
This information reflects our best understanding of product composition in 2015.
Powder coatings contain five basic ingredients: resins, cross-linkers, additives (such as flow and leveling agents), pigments, and fillers. Polyester resins for powder coatings are often a combination of two or more polyester compounds and may be...
Powder coatings contain five basic ingredients: resins, cross-linkers, additives (such as flow and leveling agents), pigments, and fillers. Polyester resins for powder coatings are often a combination of two or more polyester compounds and may be crosslinked with a variety of compounds; the most common being triglycidyl isocyanurate. While not covered in this CP, similar resins may be used to form hybrid powder coatings crosslinked with epoxies, which also comprise a significant portion of the powder coatings market. Other additives such as flow and leveling agents, which keep bubbles from forming in the coating for a smooth a consistent coating, and fillers, are premixed with the resin and crosslinker, extruded, and ground into a homogenous powder. This powder can then be applied to various surface materials most commonly via electrostatic spray and oven cured.