Aluminum Extrusions

Winona Powder Coating provides high-quality, high-volume powder coating services for aluminum extrusion manufacturers.

Winona combines a coating line dedicated to aluminum extrusions, aluminum-specific pretreatment capabilities, and the advantages of an AAMA-certified applicator. We’ve helped manufacturers nationwide develop streamlined coating and delivery programs for their extruded aluminum products while meeting demanding appearance, durability, and production requirements.

Whether your extrusions are used in architectural systems, within the transportation sector, for outdoor equipment, commercial fixtures, recreational products, or other fabricated assemblies, Winona has ample experience in applying durable finishes proven to perform in the real-world environments where your products are used.

An Experienced Partner for Extrusion Manufacturers

Aluminum extrusions come with some unique finishing challenges and requirements. Long part lengths, complex profiles, visible surfaces, strict color expectations, and downstream fabrication processes all require an experienced coating partner.

Winona has the equipment and process control in place to handle large aluminum extrusions with the care and precision that manufacturers’ end markets demand.

Winona’s dedicated extrusion coating line is designed around those needs. It gives extrusion manufacturers access to a finishing process optimized for aluminum, along with the production capacity and turnaround support needed for recurring commercial and industrial programs.

Our aluminum extrusion capabilities support parts that require:

Consistent color, gloss, texture, and visual quality across production runs
Durable finishes for indoor, outdoor, commercial, and industrial environments
Pretreatment processes engineered for aluminum substrates
High-volume coating capacity for ongoing manufacturing programs
Flexible color and texture options
Quick turnaround to help keep fabrication and assembly schedules moving
Reliable coating adhesion through post-forming and downstream manufacturing

Aluminum-Specific Pretreatment Ensures Quality and Consistency

A long-lasting powder-coated finish begins with proper surface preparation. Aluminum requires pretreatment processes designed for its specific composition and surface characteristics, not a one-size-fits-all approach intended primarily for steel parts.

Winona’s dedicated aluminum extrusion line uses state-of-the-art pretreatment processes optimized for aluminum. This helps create the foundation needed for strong powder adhesion, consistent coverage, and durable corrosion resistance.

Proper pretreatment is especially important when extrusions will be installed outdoors, exposed to moisture or contaminants, fabricated after coating, or expected to retain their appearance over many years of service.

AAMA-Certified Coating Performance

Winona’s aluminum extrusion pretreatment process is certified to AAMA 2605 requirements by three different powder suppliers. AAMA 2605 represents the highest performance level established by the American Architectural Manufacturers Association for organic coatings on architectural aluminum.

AAMA-grade powder coatings are engineered for demanding applications where color retention, gloss retention, corrosion resistance, and long-term weatherability are essential. The specification is commonly associated with architectural storefronts, curtain walls, windows, doors, and exterior building components, but its benefits also apply to many non-architectural products exposed to years of sun, weather, moisture, and temperature changes.

Winona’s certified process gives extrusion manufacturers confidence that their coating is being applied under documented procedures designed to meet the coating manufacturer’s requirements.

Durable Finishes for Outdoor and Industrial Use

Aluminum extrusions are used in far more than architectural systems. In some applications they become structural components, frames, rails, equipment housings, commercial fixtures, recreational products, transportation assemblies, or branded outdoor products.

Architectural storefront, window, door, curtain wall, and façade systems
Commercial railing, fencing, sunshade, and canopy components
Outdoor furniture, site furnishings, and recreational equipment
Transportation, trailer, RV, and marine components
Agricultural and industrial equipment
Retail fixtures, displays, shelving, and point-of-purchase systems
Lighting housings, signage, and wayfinding structures
Equipment frames, enclosures, and fabricated aluminum assemblies
Consumer, commercial, and specialty-manufactured products

The powder coating selected for your extrusion should match the product’s real-world exposure conditions. Winona can help manufacturers evaluate whether a standard commercial powder, an enhanced exterior-grade powder, or an AAMA-rated coating system is the right fit for the application.

Coatings That Support Post-Forming

Many aluminum extrusions are not finished when they leave the coating line. They have to be bent, shaped, rolled, cut, assembled, or otherwise post-formed as part of the downstream manufacturing process.

Winona has developed a proprietary process for coating aluminum extrusions that will be post-formed. Our unique process helps maintain coating adhesion through downstream forming operations, reducing the risk of coating separation, cracking, or other finish failures after fabrication.

It’s a capability that’s especially valuable for manufacturers that need to protect the extrusion before it is shaped into its final configuration. Instead of treating coating and fabrication as separate concerns, Winona helps manufacturers plan a finishing process that supports both.

The Winona Advantage for Extrusion Manufacturers:

A Dedicated Aluminum Extrusion Line

Winona operates a powder coating line dedicated to aluminum extrusion work. This supports a more focused, repeatable process for manufacturers that need consistent quality across high-volume programs.

High-Volume Capacity

We offer available capacity for commercial and industrial aluminum extrusion programs. Whether you need an ongoing finishing partner for production quantities or support for a growing product line, our team can help build a coating plan around your throughput requirements.

AAMA-Certified Process

Our aluminum pretreatment process is certified to AAMA 2605 by three powder suppliers, helping customers meet demanding coating-performance requirements and supporting projects that require certified application.

Finish Flexibility

Powder coating gives manufacturers broad options for color, gloss, texture, and performance. We can help you select a finish that supports your appearance standards while also accounting for outdoor exposure, wear resistance, chemical exposure, and end-use conditions.

Fast, Reliable Turnaround

Finishing delays can disrupt fabrication, assembly, shipping, and customer delivery schedules. Winona works to provide dependable turnaround and clear communication so coated extrusions can keep moving through your production process.

Get a Custom Quote or Review for Your Aluminum Extrusion Project

Need a reliable powder coating partner for aluminum extrusions? Whether you are evaluating AAMA requirements, specifying a finish for a new product, looking for better post-forming adhesion, or seeking added capacity for an established production program, Winona can help.

Our team is standing by to work with you to review part dimensions, substrate requirements, intended exposure, finish expectations, production volume, and downstream fabrication needs.