Trivalent Blue Passivation
Our blue passivator offers bright color and strong adhesion. It is a stable process with easy maintenance and wide applicability.
White-blue passivator
|
Range 1 |
Range 2 |
|
|
White-blue passivator A |
6~10g/L |
6~10g/L |
|
White-blue passivator B |
4g/L |
4g/L |
|
Nitric acid |
6ml/L |
6ml/L |
|
Blueing powder |
2~4g/L |
|
|
PH (Nitric acid adjusting) |
1.5~3 |
1.5~3 |
|
Temp. |
20~35°C |
20~35°C |
|
Time: In solution |
5~15’s |
25~35’s |
|
In air |
5~10’s |
15~30’s |
Note:
Range 1 is suitable for white-blue passivating of normal parts.
Range 2 is suitable for flat parts or parts with strong corrosion resistance and dark blue film.
Consumption: White-blue passivator A 1~2g/100dm2