1. TR-150 Specific Properties
1. Trivalent chrome passivation process without hexavalent and oxidizer, got SGS international certification.
2. It is simple to operate and easy to control; TR-150 working fluid temperature is less than 45 ℃.
3. The passivation layer has good corrosion resistance (NSS); PH 2.0-2.5, NSS > 96 hours.
4. The color of passivation layer is reddish.
5. It has long effective period and good anti impurity performance.
2. TR-150 Process Flow
Plate zinc → Wash → Immerse Nitric Acid (0.5%) → Wash → Immerse TR-150→ Wash with cool water → Wash with hot deionized water → Dry
3. TR-150 Operating Condition
| Operating condition | Operating range | Optimum value |
| TR-150 | 80-150 ml/L | 100 ml/L |
| Time | 60-90s | 60s |
| Temp. | 25℃ | 25℃ |
| pH | 1.8-3.0 | 1.8-2.5 |
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