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PAN MALAYSIA ELECTRO PLATING SDN BHD

Zinc Cobalt Plating

Zinc Symbol

The Zinc Cobalt process produces a tough, durable finish with excellent lubricity and far greater resistance to seizure especially useful for moving parts and threaded connections. Lower toxicity of the process and the deposit makes the coating far safer than cadmium.

By electroplating zinc and cobalt to the base metal, the end result is a uniform ductility that will withstand up to six times the corrosion resistance of conventional zinc plating alone.

Zinc Cobalt Specifications
ASTM B 840

Class      –    Coating composition
Class           Zinc Component     Cobalt Component
Class 1        99%                         1%

Type – After plating passivation treatment

Type      Type of Treatment
Type A   Proceeds toneless chromate treatment- white passivation
Type B   Proceeds yellow chromate treatment
Type C   Proceeds bronze shade treatment
Type D   Proceeds black treatment
Type E   All mentioned treatments, in addition of an organic coat (paint, polish etc.)

Grade – Coating Thickness

Grade     Minimal Micron Thickness

6                    6
12                 12
18                 18

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