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Hardware Platings and Finishes

Black Oxide

  • Color: Black
  • Anti-Corrosion Properties: Good (Interior Only) - 8 Hr. Salt Spray
  • Characteristics: Most Metals
  • Uses: Decorative finish. Used only on interior applications.

Black Zinc

  • Color: Black
  • Anti-Corrosion Properties: Excellent - 72 Hour Salt Spray
  • Characteristics: All Metals
  • Uses: Rich and lustrous. With or without lacquering.

Cadmium

  • Color: Bright Silver-Gray Dull or Burnished
  • Anti-Corrosion Properties: Very Good - 24 Hour Salt Spray
  • Characteristics: Most Metals
  • Uses: Non-porous metallic plating. Rich appearance, good rust resistance, low cost, good electrical conductivity. Bright silver-gray dull gray or black electroplated finish.

Chromium (Chrome)

  • Color: Bright Blue-White
  • Anti-Corrosion Properties:
  • Characteristics: All Metals
  • Uses: Used when a beautiful finish is desired. Bright blue-white lustrous appearance. Electroplated.

Dichromate Dip

  • Color: Rainbow
  • Anti-Corrosion Properties:
  • Characteristics: All Metals
  • Uses: A yellow, brown, green or iridescent colored coating. Increases rust resistance. Add to Zinc or Cadmium plating.

E-Coat

  • Color: Black
  • Anti-Corrosion Properties:
  • Characteristics: All Metals
  • Uses: Added protection containing corrosion inhibitors.  Excellent for exterior applications.

Iridite

  • Colors
    • Green Blue
    • Olive drab Red
    • Bronze Black
  • Anti-Corrosion Properties:
  • Characteristics: All Metals
  • Uses: Coloring dip which adds rust resistance. Usually applied on Zinc or Cadmium.

JS-500

  • Color: Chrome-like luster
  • Anti-Corrosion Properties:
  • Characteristics: All Metals
  • Uses: Outstanding corrosion resistant finish that provides economical corrosion protection without adversely affecting dimensions.

Mechanical Zinc

  • Color: Gray
  • Anti-Corrosion Properties:
  • Characteristics: All Metals
  • Uses: A chemical process of rust-proofing steel.

Parkerized

  • Color: Black
  • Anti-Corrosion Properties:
  • Characteristics: Ferrous Metals
  • Uses: Added protection when oiled with a non-drying petroleum oil containing corrosion inhibitors. Good lubricity.

Phosphating

  • Colors
    • Dull
    • Gray
    • Black
    • Blue
  • Anti-Corrosion Properties:
  • Characteristics: Ferrous Metals
  • Uses: A chemical process of rust-proofing steel.

Passivating

  • Color: n/a
  • Anti-Corrosion Properties:
  • Characteristics: Stainless Steels
  • Uses: For stainless steels. A nitric acid dip to remove foreign material and brighten finish.

Zinc Electrogalvanized

  • Color: Gray
  • Anti-Corrosion Properties:
  • Characteristics: All Metals
  • Uses: Good rust resistance, appearance & low cost.

Zinc Electroplated

  • Color: Blue to Blue-White-Gray
  • Anti-Corrosion Properties:
  • Characteristics: All Metals
  • Uses: Commonly used finish.