The final work process, making the electroplating metal layer passive by providing protective layers such as chromating, laguer, and others.
A process that produces protective films for various of metal coating
The passivation of zinc plating that contain the metallic element chromium in its 6+ valence (hexavalent) state.
The passivation of zinc plating that contain the metallic element chromium in its 3+ valence (trivalent) state.
Produces an uniform blue appearance on zinc plated part
Secondary passivation for zinc plating
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