| Coating performance |
| Test items | Inspection standards | Test indicators |
| High light | Glazed/Matte/Low light |
| Impact resistance | ISO6272 | GB/T1732-1993 | 50kg/cm | 40kg/cm |
| Cupping test | ISO1520 | GB/T9753-1988 | 8mm | 7mm |
| The adhesion (grid method) | ISO2409 | GB/T9286-1998 | 0 |
| Bending | ISO1519 | GB/T6742-1986 | 2mm | 3mm |
| Pencil Hardness | ASTMD3363 | GB/T6739-1996 | 1H-2H |
| Salt spray test | ISO7253 | GB/T1771-1991 | >500 hours |
| Damp heat test | ISO6270 | GB/T1740-1979 | >1000 hours |
| Heat resistance | 110°C/24 hours(white) | Good gloss retention,E≤0.3-0.4 |
| Florida weathering exposure | ISO2810 | South 45 °,12mons | Gloss retention≥50% |
| Artificial accelerated aging | 60°C/8hours + 50°C/4hours condensing,cycle for 500hours | Gloss retention≥50% Color stability:E≤0.35 |
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| Annotate: | 1.The above experiment uses 0.8mm steel with degreasing and rusting, and the coating thickness are 50-70 microns. |
| 2.The above coating performance may be lower as shiny and slightly lower. |