N NorthlineCoating

Architectural finishes
built to hold color
for twenty years.

AAMA 2605-compliant powder systems for curtain wall, window frames, column covers, sunshades, and decorative facade metal. PVDF fluoropolymer and super-durable polyester finishes with manufacturer-backed 20-year color retention on qualifying systems.

Modern architectural facade with powder coated aluminum curtain wall
Overview

A facade finish
has to age well.

Architectural powder coating lives in a different world than industrial work. The parts are exposed to sun and weather twenty-four hours a day, they're almost always visible from the street, and the color that's specified on a drawing has to still match six years from now when the building gets photographed for an award submission.

That's why most exterior architectural specifications call for AAMA 2605-compliant systems. It's the toughest standard in the industry: 10-year South Florida exposure testing, 5,000-hour salt spray, and rigorous color-retention and chalk-resistance requirements. We run both PVDF fluoropolymer systems and super-durable TGIC polyester, depending on the spec and budget.

Most of our architectural work is extruded aluminum — mullions, curtain wall components, window frames, sunshade fins, and column covers. We also coat steel architectural elements like railings, canopies, and decorative panels, and work directly with fabricators, glazing contractors, and architects of record to hold the specified color and finish across every lot.

What we coat

Architectural elements
that leave our line.

Curtain Wall Systems

Mullions, transoms, pressure plates, and cover caps. Coated to match the architect's specified color across the entire project.

Window Frames

Fixed and operable frames, sashes, and muntins. Available in standard and custom color matches with either PVDF or super-durable polyester.

Column Covers & Fascia

Aluminum column surrounds, fascia panels, and architectural trim. Two-sided coating available for exposed/interior faces.

Sunshades & Brise-Soleil

Extruded aluminum fins and shading elements. UV-stable finishes that hold color through decades of direct sun exposure.

Railings & Handrails

Interior and exterior railing components, post covers, and infill panels. Slip-resistant and textured finishes available.

Canopies & Soffits

Canopy frames, soffit panels, and architectural metal accents. Coated to match adjacent curtain wall and storefront components.

Industry standards

Understanding the
AAMA 2605 spec.

Architectural specifications almost always reference one of three AAMA standards. Here's what each actually means in the field.

AAMA 2603

Standard Performance

Best for: interior applications, low-exposure decorative elements

Minimum performance standard for organic coatings on architectural aluminum. One-year South Florida exposure. Rarely specified for exterior work in modern practice.

  • South Florida exposure: 1 year
  • Salt spray: 1,500 hours
  • Color retention: moderate
AAMA 2604

High Performance

Best for: storefronts, light-commercial exterior, mid-exposure work

Mid-tier standard between 2603 and 2605. Five-year South Florida exposure. Popular where budget and performance need to balance.

  • South Florida exposure: 5 years
  • Salt spray: 3,000 hours
  • Color retention: good
Technical specifications

Numbers the project
team actually uses.

Architectural work is spec-driven. These are the parameters we work to — and can certify to — for the systems we run. If your project needs something outside this list, call us before the submittal deadline and we'll tell you if we can meet it.

Maximum part length 24 ft (7.3 m)
Maximum part width 60 in (1,524 mm)
Maximum part height 72 in (1,829 mm)
Substrates Extruded aluminum, steel, composite panel
Compliant systems AAMA 2603, 2604, 2605
PVDF (Kynar 500) 70% PVDF fluoropolymer, 1.2 mil nominal
Super-durable polyester TGIC, 2.0–3.0 mil nominal
Pretreatment (aluminum) Chromate conversion or chrome-free
Color-matching tolerance ΔE ≤ 2.0 across production lots
Typical project turnaround 7 – 14 business days, phased by lot
Color & finish options

The palette your
facade lives in.

Architectural color selection is limited by what the manufacturer makes in a certified system. Here are the families we work with most often.

Mica & Metallic

Subtle metallic depth with strong UV performance. Common on high-profile facades where a flat color reads as too generic.

Clear & Anodized Look

Clear coat over mill-finish aluminum, or a two-coat system that mimics anodized appearance without the anodizing line.

Neutral & Earth Tones

Bronze, champagne, taupe, and stone. The workhorse palette for commercial and institutional buildings.

Dark & Deep Color

Charcoal, black, and deep navy. Popular on modern facades. Requires closer attention to heat gain and expansion tolerance.

Bright & Signature

Red, orange, and other high-visibility hues. Usually reserved for accent elements and signature facade features.

White & Off-White

Standard for healthcare, education, and clean industrial. Chalk resistance matters most here — that's where 2605 pulls away from 2604.

How we work with project teams

From shop drawing
to final delivery.

  1. 01

    Spec Review & Submittals

    We review the specified AAMA standard, color, and finish. Provide product data sheets, sample chips, and finish warranty documentation for the submittal package.

  2. 02

    Color Approval

    Physical sample panels coated in the specified color and finish, submitted for architect and owner approval before production begins. Approval is documented and archived.

  3. 03

    Pilot Lot

    For multi-phase projects, we run a pilot lot of representative parts first. This establishes ΔE baseline and catches any racking or masking issues before full production.

  4. 04

    Phased Production

    Full production runs scheduled against the glazing contractor's installation sequence. Each lot traced with powder batch, oven logs, and thickness readings.

  5. 05

    Documentation & Warranty

    Every shipment includes a certificate of conformance, thickness report, and color verification. Warranty documentation follows the final shipment.

  6. 06

    Post-Installation Support

    Touch-up kits and field repair guidance for jobsite handling marks. If a piece gets damaged during install, we can usually recoat it within a week.

Recent work

Three architectural jobs,
start to finish.

Curtain Wall Lot 20,388

Downtown office tower — 6-story curtain wall

PVDF fluoropolymer in a custom bronze over 8,200 linear feet of mullion and cover cap. Three-phase delivery, each lot ΔE-verified against the approved sample.

Healthcare Lot 20,401

Regional medical center — window and storefront

Super-durable polyester in a clean off-white across 340 window frames and storefront components. Specified to AAMA 2604 with 2605-grade chalk resistance for the west elevation.

Education Lot 20,417

University science building — sunshade system

PVDF in a warm champagne over 220 extruded sunshade fins, each up to 18 ft in length. Delivered in two phases to match the GC's curtain wall installation schedule.

Architectural FAQ

Questions from
architects and GCs.

Can you provide sample panels for architect approval?

Yes. We provide 4" × 6" coated sample chips, or full-size production panels on request for any project over 500 linear feet. Sample production typically takes 5–7 business days. We archive the approved sample and match every subsequent production lot against it.

What's the difference between AAMA 2604 and 2605 for our project?

2605 is the tougher standard — 10-year versus 5-year South Florida exposure, higher chalk resistance, higher color-retention limits, and greater salt-spray hours. For any exterior facade on a project with a design life over 10 years, we recommend 2605. For interior or low-exposure exterior elements, 2604 is often sufficient and less expensive.

How do you handle color-match consistency across a multi-phase project?

Every production lot is measured against the archived approved sample using a spectrophotometer, with ΔE held to 2.0 or tighter. We hold powder from a single manufacturer batch for the full project wherever possible, and pull from a reserved inventory when the project runs over multiple years.

Do you provide certificates of conformance and thickness reports?

Yes. Every shipment includes a certificate of conformance documenting powder batch, pretreatment, cure schedule, film thickness readings, and the operator who ran the lot. Thickness readings are taken per rack, not per lot, so we can trace any specific part.

Can you match a competitor's existing finish on a retrofit project?

Yes, with limitations. We can usually match to a physical sample or a retained cut-piece from the existing facade. Exact matching gets difficult after years of UV exposure — the sample itself has faded. In those cases we recommend matching to the original specified color, not to the weathered appearance.

What substrates can you coat for architectural work?

Extruded aluminum is our primary substrate and where our AAMA certifications apply. We also coat steel for railings, canopies, and structural architectural metal. Composite aluminum panels can be coated, but only with low-temperature powders and specific manufacturer approval.

What's the lead time on a large architectural project?

Typical project lead time is 7–14 business days per production lot, phased against the glazing contractor's install sequence. We schedule architectural work 4–6 weeks out from the start of production, so it's important to have the shop drawings approved and the sample signed off before finalizing the delivery schedule.

Do you offer field touch-up kits for jobsite handling?

Yes. Every architectural shipment includes a touch-up kit with matching powder, applicator, and instructions for small handling marks. For larger damage, we can recoat individual pieces — turnaround on a single recoat is usually 5–7 business days.

Submittals & quotes

Send us the spec.
We'll respond with
what we can certify to.

Send us the architectural spec section, color, quantity, and phasing — we'll return a quote, a lead-time commitment, and a clear statement of which AAMA standard our system meets. Sample panels available before award.