POLYESTER RESIN FOR HIGHLY FILLED POWDER COATING

摘要

Methods and compositions for coating metal substrates with powder coatings are provided. The methods and systems include application of TGIC-reactive carboxyl- functional polyester resins with high acid number and low melt viscosity, used in powder coatings formulated at high pigment loadings, and optionally including a pigment dispersant in the premix prior to extrusion.