Product name: Polyester powder coating
General introduction:
The powder coating made of carboxyl polyester resin can be used in the field of outdoor products, such as enclosures for electrical equipment, building decoration, highway guards, etc. (can be divided into two products, TGIC or TGIC-free)
Product Series:
Can provide gloss (more than 80%), half-gloss(50-80%), semi-gloss (20-50%) and matt (20%) products. (According to the needs of users control gloss)
Powder physical properties:
proportion(g/cm3, 25℃) :1.4-1.7
Distribution of particle size: 100% less than 100 microns(can be adjusted according to special requirements of coating)
Curing conditions: 200℃(workpiece temperature), 10 minutes
Coating performance:
Test items | Test the standard or method | Test indicators | ||
---|---|---|---|---|
gloss | Semi-gloss | Matt | ||
Impact strength | GB/T 1732-1993 | 50kg.cm | 40kg.cm | 40kg.cm |
Cupping test | GB 9753-1988 | 8mm | 7mm | 7mm |
Adhesion | GB/T 9286-1998 | 0 level | ||
bending | GB 6742-1986 | 2mm | 3mm | 3mm |
Pencil hardness | GB/T 6739-1996 | 1H-2H | ||
Salt spray test | GB 1771-1991 | >500 hours | ||
Hot and humid test | GB 1740-1989 | >1000 hours | ||
Heat resistance | 150℃×24h(white) | Excellent light retention, color difference ≤0.3-0.4 |
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Weather resistance (artificially accelerated aging) | 60℃×8hUV + 50℃×4h Condensation, cycle 500 hours |
Gloss retention: ≥50% Color stability: color difference≤1.5 |
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Note | 1. The above test uses 0.8 mm thick cold-rolled steel sheet with standard treatment, and the coating thickness is 60-80 um. | |||
2. The performance of the above coating may vary with color and gloss. |
Average coverage:
8-11 m2/kg, The film thickness is about 70um (calculated with 100% powder coating usage)