HN-67S Trivalent Chromium Black Sealer
Commodity Name
HN-67S Trivalent Chromium Black Sealer
Composition and Working Conditions
HN-67S 40~80mL/L
Temperature 45~65℃
Time 10~20 seconds
Application and Advantage
HN-67S is a kind of black Sealing Agent. Seal coating after black passivation will significantly improved
anticorrosion of the plating layer.