Pure polyester powder coating
Brief
Pure polyester powder coating is made of saturated polyester resin, curing agent and pigment as base materials, including gloss, semi-gloss, dull, art lines and other surface effects
Application
With good resistance to weather, heat and light, it can be used in the coating of parts, including shell of air conditioner, agricultural machines, auto parts, rail facilities and garden tools. 
Physical properties
Specific gravity:1.2-1.8(different for different types and colors)
Particle size distribution:100%<100micron(can be adjusted by special demands)
Fluidity:120-140
Packing:Net wt 20kg in PE plastic bag lined paper box
Storage: kept in dry and ventilating place, the temperature is less than 35°C, and far away from heat and fire. Its storage period is one year since manufacturing date, if expired, after test, qualified are still usable
Performance of film
| Color (GB9761) |
no obvious difference (compared with standard) |
| Appearance (eyeballing) |
flat and smooth (slight pebbles is permitted) |
| Thickness of filmμm (GB/T 1764) |
50-70μm |
| Glossiness (60°gaugehead) (GB1740) |
gloss surface>85, semi-gloss surface<85%, dull<10% |
| Impact resistance (drop hammer method) (GB/T1732-93) |
pass 50kg.cm (4.9Nm) |
| Bending test (core axis) (GB/T6742-86) |
3mm pass |
| Adhesion (cross-hatching) (GB/T9286-88) |
0 grade |
| Pencil hardness (GB/T6739-96) |
1-2H |
| Salt mist test (GB1771-91) |
no change in 500hrs |
| Damp heat test (GB1740-79) |
no change in 500hrs |
| Resistance to chemicals |
acid 5%HCl (GB/T1865) |
no change in 500hrs |
| alkali5%NaOH (GB/T1763) |
no change in 500hrs |
Health and security
Although it is non-toxic products, the operator should wear mask and glass to prevent inhaling dust. Don't contact with this powder in long time.
Other
reference only,please see inspection report for more details.
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