Hexavalent Chromate Conversion Coating Services
MIL - C - 5541
MIL - DTL - 5541 Class 1A & 3, Type 1 and 2
WHY CHOOSE US FOR YOUR CHEMICAL CONVERSION COATING NEEDS?
Erie Plating Company has extensive experience processing aerospace, automotive, military, and industrial aluminum castings as well as machined billet components for chemical conversion coating, commonly known as Iridite or Alodine finishing.
We are NADCAP-accredited for this process and offer both hexavalent and trivalent chemical conversion coatings, allowing customers to select the finish that best meets their specification, performance, and regulatory requirements.
Our team understands the critical care and protection required when handling customer components, ensuring parts are properly processed, protected, and returned in pristine condition.
Finish Name
Chemical Conversion Coating-Hexavalent, Nadcap
Hexavalent Yellow Chromate, Nadcap
Chromate Coating, Nadcap
Chem Film, Nadcap
Chromate Conversion Coating, Nadcap
Alodine (trade name)
Iridite (trade name)
Bonderite (trade name)
Specification
MIL - C - 5541/MIL - DTL - 5541 classes 1A & 3, Types 1 and 2
MIL - C - 5541
AMS - 2473
AMS - 2474
AMS - 2477
ASTM - B -449 Classes 1,2,3,4
Accreditation
Nadcap
Base Metal Substrate
Aluminum and Zinc Die Cast
Aluminum Die Casting
Zinc Die Casting
Effect
- Paint base
- Electrical conductivity
- Anti-corrosion seal
- Yellow
Suitable for
Castings
Stamping
Machine from solid
Industry use
- Aerospace
- Military and Defense
- Automotive
- Various
Benefit
Chromate conversion coatings are also called chemical film coatings, or Alodine or Iridite (trade names) coatings. They produce a very thin protective coating. Used mainly on aluminum or aluminum alloys, chemical conversion coating provides a protective layer against corrosion and can be used as a primer for paint. Extra benefits accrue when the coating is sealed. The coating can be used for protection at the same time when low electrical resistance is needed.
Erie Plating provides both, hexavalent and trivalent chromate conversion. Trivalent chromate conversion coatings are nontoxic, RoHS-compliant, Nadcap-certified alternative to hexavalent chromate conversion coatings.
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