Aerospace Defense Coatings of Georgia

Alodine/Chem Film

Alodine/Chem Film

This procedure chemically applies a protective chromate coating on aluminum through immersion. There are several benefits:

  • Good corrosion protection
  • Excellent conductive surface
  • Good primer for painting
  • Adds no weight
  • Maintains pre-process dimensions

Alodine/Chem Film Capabilities

Type of Process
Alodine/Chem Film on Aluminum
The Alodine/Chem Film process provides good corrosion protection, even when scratched. It creates an excellent conductive surface that also doubles as an excellent base for paint. The process adds no weight and does not alter the dimensions of the component.
Process Approvals
For Alodine/Chem Film we adhere to:
  • CSFS027: Cessna Specification - Anodizing, Chromic - Aluminum
  • AMS 2473: Chemical Film Treatment for Aluminum Alloys, General Purpose Coating
  • MIL-DTL-5541: Chemical Conversion Coatings on Aluminum and Aluminum Alloys
  • GAMPS 6113
  • SS8486
MIL-C-5541MIL-C-5541 (PDF - 617KB)
Chromate Conversion Coating
Base Materials Worked
Aluminum and Aluminum Alloys
The chemical conversion coatings shall be of the following classes:
  • Class 1A = For maximum protection against corrosion, for surfaces to be painted or left unpainted
  • Class 3 = For protections against corrosion where lower electrical resistance is required
All Alodine/Chem Film processes are performed manually to ensure the proper care is given to each step.
Additional Operations
We offer several additional operations that may be required for your product: Cleaning, Magnetic Particle Inspection (NDT), Penetrant Inspection (NDT), Hardness & Conductivity Testing (NDT), Dry Film/Solid Film Lubricants and Primer & Topcoat Painting.

Please let us know if you require any of these additional services.
Quality Control
All processes are subject to our rigorous Quality Assurance process. All work is reviewed and inspected to be in compliance with the specification (Process Approval requested).
Industries Served
We are committed to providing the aerospace and defense industries with the highest quality metal finishing, testing, and painting available.
Environmental Responsibility
As a corporate citizen, we are committed to responsibly protecting our environment. We have a state-of-the-art $2 Million Waste Prevention System in place. All hazardous waste materials are 100% recycled and rendered harmless.

We know that this is important to you, and so we maintain an open door policy concerning environmental inspections of our facility.
With over 50 years in the metal finishing industry, we have the expertise you can depend on.
Minimum Order
We can provide Alodine/Chem Film for prototype to high volume runs.
Drawing Submissions
We accept both e-mailed (DWG, DXF, PDF, all image files) and faxed drawings.
Special Instructions
Please Attach Drawing to Request Information Form.