What Are the Most Common Storefront Finishes?

The three most common storefront finishes are powder coat, anodized aluminum, and PVDF (Kynar) paint. Each works differently at the chemistry level, and each has a distinct sweet spot in terms of cost, color range, durability, and maintenance. Understanding the differences before you specify a finish will save you costly field changes and recoating expenses down the road.

Powder Coat

Powder coat is a dry, electrostatically applied polymer that is oven-cured directly onto the aluminum extrusion. Because no solvent is used, the finish bonds as a thick, uniform shell — typically 2–4 mils dry-film thickness — that resists chipping, UV fading, and salt-air corrosion. It is the most popular finish on commercial aluminum systems in Florida and throughout the Southeast for exactly that reason. Gladiator's standard palette includes matte black, dark grey (RAL 7016), white (RAL 9010), and bronze anodized, with custom RAL colors available on qualifying orders.

Anodized Aluminum

Anodizing is an electrochemical conversion process — it does not add a coating on top of the aluminum but rather converts the surface layer of the metal itself into a hard aluminum-oxide shell. The result is an integral finish that cannot peel or delaminate. Standard anodized depths are Class I (0.7 mil, for exterior use) and Class II (0.4 mil, for interior or sheltered applications). Color range is narrower than powder coat — clear, champagne, dark bronze, and black are the practical options — but the aesthetic is distinctly architectural and naturally premium-looking.

PVDF / Kynar Paint

PVDF coatings (marketed under trade names in the industry) are two- or three-coat liquid-applied fluoropolymer systems. They deliver exceptional long-term color retention — often specified in coastal high-rises or high-UV environments where a 30-year color warranty is required. They are the most expensive factory-applied option and are typically reserved for large commercial projects with strict façade specifications.

Which Storefront Finish Performs Best in Florida's Climate?

For Florida's combination of intense UV, salt air, and hurricane-level wind-driven rain, a high-quality powder coat or Class I anodized finish is the right choice for most commercial projects. Here is why each factor matters:

• UV resistance: Florida receives among the highest UV index readings in the continental United States. Inferior paint systems — including low-grade polyester powder coats — chalk and fade within 3–5 years. Specify a super-durable polyester or TGIC-free polyester powder coat rated for exterior exposure, or choose anodized for a UV-immune finish.
• Salt-air corrosion: Coastal and near-coastal sites (Jacksonville Beach, Ponte Vedra, Amelia Island) require finishes that seal the aluminum substrate completely. Powder coat, when applied correctly to degreased and pretreated aluminum, meets AAMA 2604 and 2605 standards for corrosion resistance.
• Impact and wind-load compliance: Florida Building Code (FBC) requires impact-rated glazing and tested framing systems in most coastal counties. The finish itself does not change the structural rating of the system, but it must be applied after all fabrication and before glazing to avoid damage during installation. Gladiator's commercial-grade aluminum systems are designed for factory finishing before shipment, ensuring the coating is never compromised by field cutting.

AAMA Finish Standards at a Glance

Standard	Finish Type	Min. Gloss Retention (5 yr)	Typical Application
AAMA 2603	Organic (polyester)	50%	Interior / sheltered
AAMA 2604	Super-durable polyester	50% at 5 yr / 25% at 10 yr	Exterior commercial — standard
AAMA 2605	PVDF / fluoropolymer	50% at 10 yr	High-performance exterior
AAMA 611	Anodized (Class I)	N/A (integral finish)	Exterior architectural

What Colors Are Available for Commercial Storefront Systems?

Powder coat opens up the full RAL color library — more than 200 standard colors — giving architects and business owners precise control over brand alignment and façade design. That said, the most specified storefront colors in 2026 remain matte black, dark grey (RAL 7016), warm white (RAL 9010), and dark bronze, because they photograph well, age gracefully, and pair with virtually every cladding material.

• Matte Black: The current architectural standard. High contrast against light masonry, brick, or glass curtain wall. Absorbs heat in direct sun — factor this into thermal modeling for west-facing façades in Jacksonville's climate zone.
• Dark Grey RAL 7016: A softer alternative to black that reads as sophisticated without the stark contrast. Extremely popular on mixed-use retail and hospitality projects.
• White RAL 9010: The right choice for coastal and tropical aesthetics, bright interior retail, and medical or professional office environments where a clean, open feel is the design intent.
• Bronze Anodized: Bridges the gap between modern and traditional architecture. Works especially well with warm-toned brick, terracotta, and natural stone façades.
• Custom RAL: Matched to brand colors, corporate standards, or historic preservation guidelines. Lead times are longer and minimum order quantities apply — ask our team for details.

Does the Finish Affect the Thermal Performance of a Storefront?

Color and finish type do have a measurable — though secondary — effect on thermal performance. Dark finishes absorb more solar radiation, which can slightly increase frame surface temperatures and heat gain on sun-exposed elevations. The dominant thermal factor, however, is the frame's thermal-break design and the glass specification, not the coating color.

Gladiator's commercial storefront systems use thermal-break aluminum profiles and accommodate low-e, argon-filled insulating glass units (IGUs) to achieve whole-system U-factors that meet or exceed Florida Energy Code requirements. If you are pursuing LEED or Green Globes certification, the glass and frame assembly — not the paint — will determine your thermal credit. That said, specifying a lighter finish color on west- and south-facing elevations in Jacksonville is a sound passive-solar strategy worth discussing with your mechanical engineer.

For projects that combine a commercial entry with adjacent large-format sliding glass doors or bi-fold door systems, finishing all aluminum elements in the same color from the same factory batch ensures a consistent appearance across the entire façade — something that is very difficult to achieve when sourcing through multiple dealers.

How Do You Maintain Powder-Coated Storefront Frames?

Powder-coated aluminum storefront frames are low-maintenance by design, but a consistent cleaning schedule dramatically extends finish life. Follow these practical steps:

• Quarterly cleaning: Wash frames with a mild, non-abrasive soap solution and a soft cloth or sponge. Rinse thoroughly with fresh water. This is especially important within 10 miles of the Florida coastline, where salt residue accumulates between rain events.
• Avoid: Abrasive pads, wire brushes, solvent-based cleaners (acetone, MEK), and pressure washing at close range. All of these can breach or dull the powder-coat surface.
• Touch-up: Minor chips or scratches can be addressed with color-matched touch-up paint from the original coater. Deep gouges that expose bare aluminum should be treated promptly to prevent oxidation.
• Annual inspection: Check sealants at frame-to-masonry joints. Sealant failure — not finish failure — is the most common entry point for water infiltration in commercial storefronts.

Gladiator backs its factory finishes with a 15-year warranty and ships every system factory-direct, so the coating is never handled by a distribution middleman before it reaches your job site.

Is Factory-Direct Finishing Worth It for Commercial Projects?

Yes — and the reasons are practical, not just economic. Factory-applied finishes are cured under controlled conditions, applied to pretreated aluminum, and inspected before shipment. Field-applied touch-up paint or aftermarket powder coating introduces variables — surface prep quality, cure temperature, film thickness — that the original factory process eliminates.

Because Gladiator fabricates and finishes every system at our Jacksonville, Florida facility, your storefront frames arrive job-site-ready in the specified color, tested, and warranted. There is no dealer markup, no finish up-charged by a distributor, and no inconsistency between what was specified and what shows up on the pallet. For builders and architects managing tight schedules, that supply-chain simplicity is as valuable as the cost savings.

If you are a builder or glazing contractor working on multiple commercial projects, explore our reseller and wholesale program for volume pricing and dedicated project support. You can also browse our full folding passthrough window systems for hospitality and food-service applications where a matching finish across multiple openings is essential to the design.

Ready to specify your storefront finish? Contact the Gladiator team for a factory-direct quote, finish samples, and project-specific lead times. No middleman. No markup. Just the system you designed, built the way you specified it.