Chemical Film Coating from Advanced Metal CoatingsChemfilm Conversion Coatings is also referred to as Chem Film or Chromate Conversion. These terms all refer to essentially the same process, the electrochemical application of a chromate conversion coating on aluminum. Chem film coating produces a finish which protects from corrosion, assures good paint adhesion and conducts electricity.

The Class 1A coating provides corrosion protection for aluminum and aluminum alloys when left unpainted. The coating also improves adhesion of paint finish systems.

The Class 3 coating provides corrosion protection for electrical and electronic applications where lower electrical resistance contacts are required. The Class 3 coating is thinner than the 1A coating, therefore more susceptible to corrosion.

Standards and Specifications

Conversions Coatings

  • Mil-DTL-5541 Type I, Class 1A & 3
  • Mil-DTL-5541 Type II, (RoHS ) Class 1A & 3
  • ROHS Compliant Conversion Coating
  • Multi-Metal Phosphate Pretreatment
  • TTC-490, Type III
  • AMS 2480

Passivation on Stainless

  • Steels
  • QQP-35
  • ASTM-A380
  • ASTM A-967

Substrates Coated:

  • Aluminun / Alloys 
  • Cold Rolled / Hot Rolled Steel
  • Galvanized Steel
  • Iron Castings
  • Zinc Die Castings 
  • Copper / Brass

Conductive Composites

  • Aluminum Extrusions and Castings
  • Rare Earth Magnets (NdFeB)
  • NiZn Plated Steel
  • Stainless Steel
  • Magnesium
  • Chrome Plate.Stainless Steel

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Advanced Metal Coatings

12500 71st Court North
Largo Florida 33773

Office: (727) 744-9508
Fax: (727) 531-7682

Advanced Metals Coatings provides rapid response to your production schedules by offering extended operating hours of two daily shifts from 7:30 AM through 11:00 PM, Monday through Friday.

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Hazardous Free Substances

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Green Initiative from Advanced Metal Coatings

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NSF / ISR Certification

NSF / ISR Certificate of Registration