Polyurethane powder coating
Negotiable /Metric Ton
Min.Order:1 Metric Ton
Greentech (TianJin) Anticorrosion Engineering Tech Co.,Ltd
Description: outdoor use composed of saturated hydroxy polyester resin powder coatings and enclosed isocyanate curing agent, coating with high gloss, excellent mechanical property, good adhesion, good chemical resistance, excellent weather resistance and other characteristics.
Features:
1. excellent mechanical properties
2. smooth, high gloss, good flow flat
3. high crosslinking density, good adherence.
4. excellent light resistance weather resistance
5. can attach other special properties
Application: suitable for outdoor use for all kinds of products, widely used such as: aluminum, highway guardrail, auto parts, electronics, IT, agricultural machinery, etc
Product class:
1. Provides a standard type of (190 ℃ / 15min)
2. luster gloss can be made into a variety of products, OEM as customer required
3. Can be made into all kinds of color, texture, surface effect of powder coating
4. super weather resistance and other functional powder coating according to special requirements
Powder physical properties:
l weight: 1.4 -1.8 g/cm3, varies according to the formula and color.
l Particle size distribution: usually an average particle size of 34 to 45μm varies according to different purposes, less than 15μm particle size < 7.5%, more than 85μm particle size < 0.5%.
l Powder liquidity: > 140 (ISO8130 - 5:1992), vary according to different purposes
Coating performance: all test with 0.8 mm thickness of oil removal derusting cold-rolled steel sheet, film thickness of 50-80μm
Test Items |
Technical Indicators |
Test Method |
Pencil hardness |
GB/T 6739—1996 |
1H—2H |
Impulse test |
GB/T 1732—1993 |
≥50kg·cm |
Adhesive force cross case method |
GB/T 9286—1998 |
0 Grade |
Bending test |
GB/T 6742—1986 |
≤2mm |
Cupping test |
GB/T 9753—1988 |
≥7mm |
Salt spray test |
GB/T 1771—1991 |
>500 hours no influence |
Damp heat test |
GB/T 1740—1979 |
>500 hours slight loss of light |
Weather-proof test |
GB/T 14522—1993 QUV—A340 500h (8h60℃sunshine,4h50℃condensation) |
The light rate≥80% |