Chemical Conversion

MIL-DTL-5541 Trivalent Type II, Class 1A or 3, MIL-DTL-5541 Hexavalent Type I, Class 1A or 3

Chemical conversion is a surface treatment involving the production of a surface layer of trivalent or hexavalent chemical compounds. The conversion layer provides both corrosion protection and an excellent base for organic coatings, particularly paints.

Main uses

  • This process is commonly used for aluminum parts in the automotive, aerospace and military industries.

Types of treatable metals

  • Aluminum or aluminum alloy

Advantages and benefits

  • Corrosion protection and excellent paint base.