HN-51 Black Passivation
Commodity Name
HN-51 Black Passivation
Composition and Working Conditions
HN-51A Zinc Plating Black Passivation Agent 90-150mL/L
HN-51B Zinc Plating Black Passivation Agent 80-120mL/L
pH Value 1.2-1.8
Temperature 18-35℃
Passivation Time 40-90sec
Agitation mechanical agitation
Application and Advantage
1. It will produce a layer of perfect bright black passivation.
2. The anti-corrosion and anti-thermal ability of the passivation film are very good, and the life circle is
long.
3. The operation range of the solution is wide, and it is easy to operate.
4. It is suitable for all zinc plating layers.