Physical and chemical testing of powder coatings

Workpiece pretreatment: use degreasing to remove impurities, and use zinc phosphate as a film to form

Baking temperature: 200°C*10 minutes(temperature of workpiece)

Specific gravity: 1.2~1.8g/cm3

Theoretical coverage: 110~160 square feet/pound/mil

Storage stability: half a year (under the environment of ambient temperature 25°C &humidity within 50%.)

Packing: usually 25kg/carton, but some 20kg/carton

Physical property information

Impact resistance (ASTM D-2794): 30KG‧CM

Pencil hard (ASTM D-3363): H~2H

60 Degree gloss (ASTM D-523): Being benchmarked by BYK glossmeter

Cross hatch adhesion (ASTM D-3359): 5B pass

Flexibility (ASTM D-522): 1/8 pass

Particle size (laser particle size analysis): 25~45μm

Color aberration (compared with the standard): BYK colorimeter dE<1.5