Surface Finish Options Overview
Product description
Coating characteristics:
—Excellent leveling
—High mechanical properties
—Good salt spray resistance
Application: Suitable for elevator floor doors, door frames, car doors, car roofs, car walls and outsourced parts.
Application parameters:
Curing time: 180℃~200℃×10–15 minutes
Spraying method: High-voltage electrostatic spraying 60-80 KV
Recommended film thickness: 60-150 um
Coating performance:
| Item | Instrument | Judgment standard | Test standard |
| Adhesion | Single-edged knife, tape | Level 0 | GB/T9286 |
| Impact resistance | Impact tester | 50 kg.cm passed | GB/T 1732 |
| Coating hardness | Hardness tester | ≥1H | GB/T 6739 |
| Solvent resistance | Anhydrous ethanol, rag | After 20 wipes, no scratches or discoloration | – |
| Alkali resistance | 0.1N NaOH, beaker | ≥48h, no blistering, shedding, rust, or spots on the coating | GB/T9274 |
| Water resistance | Beaker, distilled water | ≥240h, no blistering, shedding, rust, or spots on the coating | GB/T1733 |
| Acid resistance | 0.1N sulfuric acid, beaker | ≥48h, no blistering, shedding, rust, or spots on the coating | GB/T9274 |
| Neutral salt spray test | Salt spray test chamber | ≥240h, rust and blister <2MM | GB/T1771 |
| Flexibility | Bending tester | No cracks or shedding around the axis 2mm | GB/T1731 |
| Artificial aging resistance | Aging test chamber | ≥480h, gloss loss <1 level, discoloration <1 level, others are 0 level | Method 1 in GB/T1865 |
