Who We Are

A leader in the metal finishing industry since 1997, Colorado Plating Company formally Aero Propeller & Accessories  Inc. focuses on providing  high quality electro deposited cadmium plating for aerospace, automotive, motorcycle, and defense industries.

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CP V2_A

Why Choose Us

Electroplated cadmium is a robust and versatile metallic coating. Cadmium is a soft white metal that, when plated onto steel, cast iron, malleable iron, copper, and powdered metal, functions as a “sacrificial coating,” corroding before the substrate material. To enhance the corrosion protection of cadmium plating, chromate conversion coatings can be applied over the plated metal, yielding the familiar gold color as seen in the above picture. Silver is available too.

Cadmium plating offers an exceptional bonding surface for adhesives, such as those increasingly used in aircraft manufacturing, and is the preferred coating for salt-water environments.

Additional advantages of cadmium plating include: low electrical resistance; outstanding conductivity; superior solderability; favorable galvanic coupling with aluminum; and excellent natural lubricity, which results in prevention of galling and a low coefficient of friction.

Furthermore, the corrosion products of cadmium are less significant that those of other plated coatings such as zinc.

These characteristics are especially useful in applications where components will be repeatedly disassembled and reassembled, such as in scheduled maintenance of aircraft. Thus cadmium plating continues to be critical to the aerospace industry. Cadmium plated surfaces resist mold or bacteria growth.

Cadmium vs. Zinc Cadmium retains its original appearance longer than zinc and is superior to zinc in marine and industrial environments. Due to Cadmium’s lubricity, it is also preferred for moving parts, as well as parts that are made out of cast iron. The differences between the torque/tension properties of cadmium and zinc are a significant consideration in the plating of fasteners.

Aerospace

Cadmium plating and embrittlement relief in accordance with Federal Specification QQP416F.

  • Landing Gear
  • Fasteners
  • Engine Components

Auto / Motorcycles

  • Hardware
  • Disc Brake Components
  • Brackets
  • Radiator Hose Fittings
  • Hinges
  • Door Latches
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