HN-69 Trivalent Chromium Color Passivation
Commodity Name
HN-69 Trivalent Chromium Color Passivation
Composition and Working Conditions

 

HN-69                                 120~150mL/L

Temperature                       55~65℃

Passivation time                  40~70 seconds

pH value                             1.7~2.1     

Agitation                              Mechanical agitation

 

Application and Advantage

 

1. Completely without Cr  , can meet the products requirement for exporting to Europe, America, Japan etc.

2. Corrosion- resistance ability of the color passivative film is excellent, can pass 100-hour neutral salt 

spray test (NSS test).