Aluminum Conversion Coatings are non-decorative coatings applied to aluminum parts to achieve a thin, electrically-conductive coating that will provide corrosion resistance. These coatings are also a great base coating for aluminum parts that require painting, as they will significantly improve the adhesion of the paint to the aluminum.
Pioneer’s Non-Chrome Conversion Coat process treats aluminum substrates to provide a clean suitable surface for aluminum or composite bonding and as a pre-paint treatment. Pioneer’s process controls allow for high degrees of bonding strength in critical automotive bonding applications.
Standard Specifications
ASTM B921 (Alodine 5200)
BAC5719
MIL-C-5541
MIL-DT-5541
Performance Benefits
No Measurable Build Up
Excellent Paint Adhesion
Excellent Bond Strength in Adhesive Applications
Receptive Metals
Aluminum Alloy
Aluminum Casting
Max Part Size
108″ x 72″ x 30″
Type I Hexchrome will range in color from light yellow to dark yellow, depending on the immersion time in the chromate bath. The conversion coating is soft and will not provide wear resistance. This coating provides an excellent foundation for painting and improves corrosion resistance when painted or left unpainted. Generally, the darker color coatings provide the best corrosion resistance.
Standard Specifications
MIL-DTL-5541 Class 1a & Class 3 Type I
Performance Benefits
Good Corrosion Protection
Excellent Adhesion for Paint
Very Ductile
No Measurable Build-Up
Receptive Metals
Aluminum Alloy
Aluminum Casting
Max Part Size
60″ x 44″ x 28″
Pioneer’s Type II Conversion Coating utilizes a trivalent chromium base and provides excellent performance characteristics matching hexavalent conversion coatings while meeting all of the current environmental requirements. (RoHS, REACH, ELV, & WEEE)
Standard Specifications
MIL-DTL-5541 Class 1a & Class 3 Type II
RoHS, REACH, ELV, & WEEE Compliant
Performance Benefits
Good Corrosion Protection
Excellent Adhesion for Paint
Very Ductile
No Measurable Build-Up
Environmentally Friendly
Receptive Metals
Aluminum Alloy
Aluminum Casting
Max Part Size
156″ x 36″ x 27″
