Conversion Coatings

  • Introduction
    • Conversion coatings are protective coatings formed by a chemical reaction with the surface of a material.
  • Metallic Substrates
    • Oxide Conversion Coatings
      • Black Oxide
        • Forms magnetite
      • Bluing
      • Anodizing
        • Aluminum
          • Type I, IB, IC, II, IIB, and III (Hard)
          • Classes: 1) Non-Dyed, 2) Dyed
          • See: MIL-A-8625
        • Magnesium
          • Dow 17 (produces green finish)
        • Titanium
          • Decorative
          • Type II (SAE AMS 2488)
        • Steel & Other Ferrous Metals
          • Nitric Acid
    • Phosphate Conversion
      • “Parkerizing”
      • “Lubrite”
      • Iron, Zinc, Manganese
    • Chromate Conversion Coatings
      • Aluminum
      • Magnesium
      • Zinc/Galvanized Steel