Custom Metal Finishing — From Mill to Masterpiece

At Aluminum Supply Company (ASCO), finish is never an afterthought — it’s a function of performance.

Whether you’re specifying anodized curtain wall extrusions, mirror-polished stainless, or custom Kynar-coated aluminum panels, we deliver finishes engineered for endurance, consistency, and architectural integrity.

ASCO partners with certified finishing processors throughout the Midwest to offer a complete range of treatments for aluminum, steel, stainless, and copper. Each finish meets or exceeds industry specifications — including AAMA 2605, AAMA 611, and MIL-A-8625 — and every order is tracked through documented quality control under ISO 9001:2015.

We don’t just sell metal. We finish it for the next fifty years.

A machine buffs away at the surface of a metal sheet.
Metal rods are dipped into an anodizing solution.

Anodizing — Precision Oxidation for Architectural Aluminum

Anodizing is the foundation of ASCO’s finishing expertise.

Our partner processors apply Type II sulfuric and Type III hard-coat anodizing for both architectural and industrial applications, producing coatings that enhance corrosion resistance, wear performance, and appearance.

Typical lead time: 10-15 business days

Anodizing done right isn’t a coating — it’s part of the metal itself.

Architectural Painting — Hylar / Kynar 500® High-Performance Coatings

For long-term color retention and UV durability, ASCO offers 70 % PVDF finishes (Kynar 500® / Hylar 5000®) through certified architectural coaters.

These fluoropolymer systems are the industry benchmark for exterior aluminum and steel components requiring fade-resistant, warrantied performance.

Typical lead time: 5–10 business days (custom 10–15 days)

Kynar finishes are the Detroit paint job of architecture — engineered to shine for decades.

A worker sprays a metal piece yellow.
A vat made for galvanizing

Galvanizing — Protection Through Metallurgy

Steel deserves more than a coat of paint.

ASCO provides hot-dip, electro-galvanized, and Galvalume® finishes to deliver multi-decade corrosion protection for structural and exposed steel elements.

Hot-dip protection — because rust has no place in a precision assembly.

Brushing & Polishing — Crafting the Grain

Finish is texture. ASCO’s in-house and partner polishing teams produce consistent directional or radial grain patterns that emphasize the natural character of metal.

Every line in the grain tells the story of Detroit craftsmanship.

A worker buffs a metal surface
Several wheel wells dry after powder coating.

Powder Coating — Durability Meets Design

For applications demanding abrasion resistance and environmental toughness, ASCO partners with regional ISO-certified powder coating specialists experienced in large architectural components.

Panels up to 12′ × 5′ × 4′ — oversize components accommodated through partner network

It’s the Detroit tough-coat — built to take a beating and still look brand new.

Inspection & Traceability

ASCO’s finishing partners operate under the same quality system that governs our fabrication floor.

Each order receives full trace documentation: material certification, finish lot, and inspection record.

Quality Assurance

Every finish is checked, measured, and certified — because beauty without integrity doesn’t fly in this town.

Technical Summary

Finish Type Substrate Specification Key Advantages
Anodized Aluminum Aluminum AAMA 611 / MIL-A-8625 Type II & III Corrosion resistance
Color stability
Architectural durability
PVDF (Kynar 500® / Hylar 5000®) Aluminum, steel AAMA 2605 20-30 yr warranty
UV & chemical resistance
Galvanized / Galvalume® Steel ASTM A123/A792 Sacrificial corrosion protection
Long-term exterior life
Brushed / Polished Aluminum, stainless, brass ASTM B912 Aesthetic control
Custom grain direction
Powder Coated Aluminum, steel AAMA 2604, 2605 Impact resistance
Eco-friendly
Color versatility

Work with ASCO Finishing

Whether your project demands the elegance of brushed bronze, the endurance of PVDF paint, or the engineered precision of Class I anodizing, ASCO delivers a finish worthy of the metal it protects.

From anodize to zinc to Kynar — we finish Detroit strong.