Chemical Conversion Coatings
Essential Corrosion Protection for Aluminum and Alloy Surfaces
Chemical Conversion Coatings for Corrosion-Resistant, Conductive Aluminum
Chemical conversion coatings enhance aluminum surfaces with a thin, protective film that resists corrosion while maintaining electrical conductivity. GMF offers both traditional and RoHS-compliant coatings to meet diverse industry specs — with consistent finish quality, adhesion reliability, and documentation you can trust.
Why Chemical Conversion Coatings Matter
When parts need both protection and conductivity, chemical conversion delivers. This chemical process forms a self-healing film that:
Provides uniform corrosion resistance without altering dimensions
Maintains surface conductivity — ideal for electrical or EMI applications
Acts as a superior primer base for paint, powder coat, or ink
• MIL-C-5541: Type 1, Class 1A or Class 3
- Hexavalent Chrome, Cr (VI) or Cr6+ (Yellow)
• MIL-DTL-5541: Type 1 or Type 2, Class 1A or Class 3
- Hexavalent Chrome, Cr (VI) or Cr6+ (Yellow)
- Trivalent Chrome, Cr (III) or Cr3+ (Clear or Colorless) RoHS Compliant
• MIL-DTL-81706
• ASTM B449
• AMS 0318
Electrical connectors, castings, aircraft frames
Global Metal Finishing delivers consistent film thickness, primer-ready adhesion, and thorough testing at every stage of the process.
Chemical Conversion in Action
