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Magnets with blue-white zinc coating

  Blue white zinc coating is generally thinner than the Ni-Cu-Ni coating and anticorrosion ability is relatively good. Blue white zinc coating after passivating have a beautiful appearance in color. "Bones Effect” in the center and corners of the plated m
Product Company Profile
1、The characteristics of blue-white zinc coating
 1、Lower cost
 2、Zinc coating have good protection after Chromate passivated.
 3、It is an anodic coating for NdFeB magnets, which can provide good electrochemical protection.
 4、Max. working temperature for zinc coating: 250℃
2、Process of blue-white zinc
 Degreasing, pickling, activating, cleaning, zinc plating, brightness, cleaning, blue-white passivation with Cr3+, cleaning and drying
3、Composition of plating solution and process parameters
Potassium chloride 180---220g/L
Zinc chloride 60~80g/L 
Boric acid 35~45g/L
pH 5.0~5.8
Temperature Room temperature
Time 60-120minutes