METASU YFB-ZA / ZB
Trivalent chromium black passivation for alkaline rack plating
<Characteristics>
- Passivation agent that contains trivalent chromium to give a black appearance.
- Uniform black appearance and high corrosion resistance can be obtained consistently.
- Non-chelating type enables easy removal of heavy metals by sedimentation.
- Conventional chromating equipment can be used.
- Long service life with excellent operational performance.
- Uniform color tone can be obtained as intensity of reaction produces little variation in color tone.
Product Specifications
Attributes
| Appearance | Dark green strongly acidic liquid (METASU YFB-ZA) Dark red strongly acidic liquid (METASU YFB-ZB) Dark red strongly acidic liquid (METASU YFB-ZBR) |
|---|
Bath makeup conditions
| Chemicals used | Usage range |
|---|---|
| METASU YFB-ZA | 30 – 80ml/L |
| METASU YFB-ZB | 50 – 120ml/L |
Usage conditions
| Item | Range | Remark |
|---|---|---|
| Process temperature | 35 – 45°C | |
| Process time | 40 – 70 seconds | |
| pH | 1.6 – 2.2 | Verify the pH value before usage. Use caustic soda or hydrochloric acid for adjustment if pH value falls outside of the specified range. |
| Agitation | Yes | Use air agitation or pump agitation. |
Replenish conditions
| Chemicals used | Replenishment reference (standard) |
|---|---|
| METASU YFB-ZA | 3 – 5ml/100dm2 |
| METASU YFB-ZBR | 7 – 15ml/100dm2 |
| Synthetic hydrochloric acid | pH adjustment |
Inquiry about the product
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