Chrome-free conversion coating for aluminum to help protect surfaces and prepare components for paint, powder coat, and other finishing operations.
Functional Surface Treatment for Aluminum Components
Custom Coating provides chrome-free conversion coating services for aluminum components requiring corrosion protection, improved coating adhesion, and functional surface preparation.
Chrome-free conversion coatings create a conversion layer on aluminum surfaces that can help prepare components for subsequent finishing operations. Depending on the applicable process and requirements, the treatment may support corrosion resistance and provide a suitable surface for paint, powder coat, or other specified coatings.
Custom Coating reviews component material, customer specifications, drawings, and production requirements before processing begins to help determine the appropriate surface treatment approach for each project.
Applications for Aluminum Components
Chrome-free conversion coatings may be used on aluminum components requiring corrosion protection, surface preparation, or improved adhesion for subsequent finishing operations.
- Aluminum housings
- Brackets
- Panels and enclosures
- Cast aluminum components
- Machined aluminum parts
- Automotive components
- Industrial equipment components
- Components prepared for paint or powder coat
Specifications and Standards
Custom Coating processes aluminum components to applicable customer, industry, and OEM requirements. Chrome-free conversion coating requirements may vary based on the component material, intended application, corrosion protection needs, and subsequent finishing operations.
MIL-DTL-5541 Type II — Chrome-free chemical conversion coatings for aluminum and aluminum alloys
MIL-DTL-5541 Class 1A — Corrosion protection requirements for applicable aluminum components
Customer and OEM specifications — Processing requirements based on customer drawings and production documentation
- Paint and powder coat preparation requirements
- Corrosion resistance requirements
- Testing and inspection requirements
- Customer documentation and traceability requirements
All requirements are reviewed against the latest customer drawings, purchase orders, applicable specifications, revision levels, required coating performance, and testing expectations before production begins.
Quality-Focused Processing
Chrome-free conversion coating is a functional surface treatment that requires attention to component material, surface condition, applicable specifications, and subsequent finishing requirements. Custom Coating reviews processing requirements before production begins to support consistent results for each project.
Our process includes:
- Customer drawings and specification review
- Component material and surface condition review
- Processing and production planning
- Required coating performance and finishing requirements
- Testing and inspection requirements
- Lot traceability and documentation
As an ISO 9001:2015 certified coating supplier, Custom Coating supports customers requiring dependable processing, responsive communication, and practical production support.
Key Benefits of Chrome-Free Conversion Coating
Chrome-free conversion coatings provide functional surface preparation for aluminum components and may support several important performance requirements depending on the applicable process and specification.
- Supports corrosion resistance for applicable aluminum components
- Helps prepare surfaces for paint and powder coat adhesion
- Provides a functional conversion layer
- Supports specification-driven processing requirements
- Offers a chrome-free alternative where required by customer or environmental requirements
Learn More About Hexavalent Chromium-Free Conversion Coatings
Chrome-free conversion coating is increasingly specified for aluminum components based on customer, OEM, environmental, and regulatory requirements. Learn more about hexavalent chromium-free conversion coatings, common terminology, applications, and how these processes differ from traditional chromate conversion coatings.
Production Capabilities for Aluminum Components
Custom Coating provides production-focused conversion coating capabilities for aluminum components across a range of sizes, configurations, and production volumes. Our equipment and processing lines support industrial and OEM requirements while allowing us to review customer-specific component and specification needs.
Production Capacity
Custom Coating operates automated processing lines with capacities of up to 1,900 pounds on the West Line and 2,400 pounds on the East Line.
Component Handling
Available processing equipment includes multiple basket sizes, rotating baskets, and 2,200-gallon tanks to support a range of component sizes and configurations.
Our team can review your component requirements and production needs to help determine the appropriate chrome-free conversion coating process.
Custom Racking for Aluminum Components
Some aluminum components require specialized handling during the conversion coating process. Component size, shape, geometry, and production requirements can all affect how parts are positioned and processed.
Custom Coating offers in-house rack design and manufacturing to help support components that require specialized handling during processing. Custom racking can be developed around the specific needs of a component and the requirements of the production process.
By developing racking solutions around individual component requirements, Custom Coating can support efficient handling and consistent processing for complex aluminum parts.
Have an Aluminum Conversion Coating Requirement?
Contact Custom Coating to discuss your aluminum components, applicable specifications, and production requirements. Our team can review your project and help determine the appropriate processing approach.