HN-52 Blue Passivation
Commodity Name
HN-52 Blue Passivation
Composition and Working Conditions
lue chromate HN -52 20~25mL/L
Nitric acid(98%) 10~11mL/L
Time 5~15 seconds
Temperature Room temperature
Agitation Air agitation or mechanical agitation
Application and Advantage
1. Produce perfect and bright blue passivative film with good corrosion resistance.
2. Single supplement, easy to operate.
3. Suitable for all zinc plating layers.