Cadmium Plating

Cadmium is a soft white metal that functions as a sacrificial coating, it corrodes before the substrate material. Cadmium coatings are applied to iron, steel, brass, and aluminum and provides excellent resistance to corrosion in most conditions, especially in marine and alkaline environments. Electroplating of cadmium is a robust and versatile metallic coating process.

To enhance the corrosion protection of cadmium plating, chromate conversion coatings can be used to increase its life.Clear hexavalent chromium, yellow dichromate, and olive drab chromate conversion coatings are available.The coating is generally specified in thickness between 5 and 25 µm depending on the severity of the atmosphere.

Cadmium coatings are particularly useful in electrical, electronic, aerospace, mining, offshore, automotive and defense industries, where they are applied to bolts, fasteners, chassis, connectors and other components.

Cadmium plating methods include:

• Rack cadmium plating (Olive drab /clear/Yellow -Finish)
• Barrel cadmium plating (Olive drab /clear/Yellow-Finish)