Extrusion • Fabrication • Painting • Anodize • Assembly
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Our Locations
Elgin IL Facility
500 Division St.
South Elgin, IL 60177
Phone: 1-800-745-6333
Fax: 847-931-4323
Genoa IL Facility
312 Eureka St.
Genoa, IL 60135
Phone: 1-800-745-6333
Fax: 847-931-4323


There are 3 types of paint finishes used on aluminum water and solvent based polyester.  Two part polyurethane and powder coating finishes. Solvent polyester and powder coat paint finishes can reach AAMA 2603, 2604 and 2605 requirements (please read below for an in depth look at the differences between AAMA specifications). Powder coats offer a variety of not only colors but textures as well.

The painting process begins by racking parts on to custom racks designed to minimize rack marks. The parts then pass through a 5 Stage wash and pre-treatment system to be cleaned and prepared to accept a paint finish. One of the unique differences between the system at Custom Aluminum Products and many others is that there is no chrome used in the pre-treatment system. This means that all of the products meet RoHS and WEE directives and there is no hazardous by product of the system

After the parts are washed and pre-treated they are dried and ready to be painted. Upon completion of the coating application the parts are cured in an oven and allowed to cool before un-racking and inspection.

The inspection process of all products requires not only a visual inspection but color inspection using a spherical color meter, Mil thickness, Gloss, Pencil hardness, Cross hatch adhesion and MEK resistance testing. This inspection process ensures that the products coming off the line meet our customer’s high expectations.

What is AAMA?

Since 1936, the American Architectural Manufacturers Association (AAMA) has stood as a strong advocate for manufacturers and professionals in the fenestration industry and dedicated to the promotion of quality window, door, curtain wall, storefront and skylight products. And today, as the leading trade association representing both the residential and commercial sectors and all framing materials, AAMA’s mission remains strong. Building on a solid foundation of achievement in these areas, we continue to: 

  • Lead efforts to address the technical and marketing needs of fenestration product manufacturers, suppliers and test labs
  • Work to improve product, material and component performance standards for the fenestration industry


AAMA Paint Specification Comparison

AMA 2603-02 AMA 2604-10 AMA 2605-11

Minimum 1,500 Hours salt spray resistance (per ASTM D968)

Minimum 3,000 Hours salt spray resistance (per ASTM D968)

Minimum 4,000 Hours salt spray resistance

After 1 Year South Florida Exposure

After 5 Years South Florida Exposure

After 10 Years South Florida Exposure

Slight Color Change (no change max set by AAMA)

Max 5 Delta color change

Max 5 Delta color change

No gloss spec

Minimum 30 % Gloss retention

Minimum 50 % Gloss retention

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