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).