Evonik´s Coating Additives business line has developed a new, multi-functional polymer additive for powder coating formulations: TEGO^® Powder Aid D01. The additive makes the formulation easier to disperse during extrusion by promoting pigment wetting, and effectively reducing melt viscosity. The lower melt viscosity also leads to better degassing, which aids flow and leveling as the formulation cures and prevents pinholes in the coating. Thus, the new additive optimizes gloss development, and ensures better DOI (Distinctness of Image) on the coating surface.

TEGO Powder Aid D01 is particularly versatile in formulations with inorganic fillers and pigments, along with organic pigments, including carbon black. The additive also prevents pinholes by increasing the degassing threshold, and enables the application of thicker coating films. Powder coatings containing TEGO Powder Aid D01 also show comparable resistance to weathering, making the additive suitable for use in exterior applications.