Chemical Conversion Coating Services (MIL-DTL-5541)

Chemical conversion coating is a controlled chemical process that forms a thin, protective layer on aluminum surfaces. Unlike anodizing, conversion coatings:

• Do not significantly change part      dimensions
• Preserve electrical conductivity
• Improve corrosion resistance
• Enhance paint and powder coating      adhesion

This makes chemical conversion coating ideal for precision parts and assemblies.

Veterans Metal performs chemical conversion coatings in compliance with MIL-DTL-5541, a widely specified military and aerospace standard for aluminum surface treatment.

Type I – Hexavalent Chromium

• Traditional chromate conversion coating
• Superior corrosion resistance
• Often specified for legacy defense and aerospace programs

Type II – Trivalent Chromium

• Environmentally friendly alternative
• RoHS-compliant
• Commonly specified for modern defense and industrial applications

Both types are processed using rack-mounted parts and hoist-controlled immersion systems to ensure consistency and repeatability.

1️⃣ Surface Preparation
Cleaning and conditioning to remove oils, oxides, and contaminants

2️⃣ Rack-Mounted Conversion Treatment
Parts are secured on racks and immersed using hoist systems for uniform exposure

3️⃣ Rinsing & Post-Treatment
Thorough rinsing to ensure surface integrity

4️⃣ Final Quality Verification
Inspection to confirm coating uniformity and specification compliance

Our chemical conversion coating services support:

• Defense & Military Manufacturing
• Aerospace & Aviation Components
• Industrial Equipment & Assemblies
• Electronics & Electrical Enclosures
• OEM & Contract Manufacturing

We understand the documentation, consistency, and traceability required in regulated industries.

•  Support for MIL-DTL-5541 Type I & Type II
• Rack-mounted, hoist-controlled processing
• Consistent, repeatable results
• Focus on corrosion resistance and coating performance
• Reliable turnaround and responsive communication

Our approach is built around process control, specification compliance, and long-term performance.