China Electrostatic Powder Coatings Paint Exterior Black Matt Car Paint Ral9004, Find details about China Powder Coating, Metallic Objects from Electrostatic Powder Coatings Paint Exterior Black Matt Car Paint Ral9004
Test Item | Method | Standard | Target |
Gloss | 60°Gloss Tester | GB/T9754-1988 | +/- 5% |
Film thickness | Film thickness Tester | GB1764-1979 | 60um-70um |
Adhesion | Cross-cut Tester | GB/T9286-1998 | 0 Grade |
Film Hardness | Film Hardness Tester(Japan) | GB/T6739-1996 | 1H-2H |
Impact | Impact Tester | GB/T1732-1993 | 50cm*kg Positive Impact(According to Gloss) |
Mandrel Bend | 180°Bend | GB/T6742-1986 | 2mm-3mm |
Cupping test | Erichsen tester | GB/T9753-1988 | 5mm-6mm |
Color Difference | Color Difference Tester | GB/T11186.2-89 | Dark<1.5,Light< 0.5 |
Salt spray | Salt spray Tester | GB/T1771-1991 | 1000h |
Humidity Test | Constant temperature and humidity | GB/T1740-1979 | 1000h,Changes<1 Grade |
Bucholz Hardness | Bucholz Hardness Tester | GB/T 9275-1988 | ≥80(Length:1.15-1.2) |
Aging resistance | lamp test | GB/T1865-1997 | 1000h |
Surface | Visual | GB/T 9761-1988 | No Particle above 60um |
The distribution of Particle Size | Laser particle sizer | / | D(4,3) 35-40um |