Chromate Conversion Coating

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Base: 
Aluminum and Zinc Die Cast
Effect: 
Paint base
Effect: 
electrical conductivity
Effect: 
anti-corrosion seal
Effect: 
clear or yellow
Effect: 
Trivalent Clear
Specification: 
MIL-C-5541 Classes 1A & 3, Types 1 and 2
Specification: 
AMS-2473
Specification: 
AMS-2474
Specification: 
AMS-2475
Specification: 
ASTM-B-449 Classes 1, 2, 3, 4

Chromate Conversion Features

  • Provides corrosion resistance on aluminum sheet, extrusions, forgings and aluminum sand or die castings without anodize or any other pre-coating.
  • Inexpensive in all applications.
  • Provides good paint base.
  • Provides nearly zero electrical resistance.
  • Prolongs shelf life and resists staining and fingerprinting.
  • Provides super corrosion resistance on all aluminum products by addition of seal.
  • Clear to light in appearance
  • Excellent corrosion protection
  • Salt spray hours from 72 to 120 depending on the part and alloy
  • Excellent base for paint.
  • Trivalent chromate conversion coatings are a safe, nontoxic, RoHS-compliant alternative to hexavalent chromate conversion coatings.