Commercial Glazing Material Spec
Commercial aluminum finishes — PVDF vs anodize vs powder coat
Commercial aluminum storefront and curtain wall accept three finish types: PVDF Kynar 70/30 (paint-based), Class I/II anodize (electrolytic oxide layer), and powder coat (electrostatic resin). PVDF dominates commercial Florida — widest color range, best warranty, premium aesthetic.
What's the difference between PVDF and powder coat?
PVDF Kynar 70/30 (e.g., AAMA 2605) is a baked fluoropolymer paint applied at the extruder. Industry-standard commercial finish in Florida with 20-30 year service life. Powder coat is electrostatic resin baked on — lower cost, shorter service life (10-15 years), narrower color range.
When is anodize the right finish?
When the architectural spec calls for a metallic finish (Class II anodize = 0.4 mil oxide, Class I = 0.7 mil). Anodize is durable and integrates the metallic appearance into the substrate. Color range is limited (champagne, dark bronze, light bronze, black). Used on premium curtain wall and architectural storefront.
What's the typical warranty on commercial aluminum finish?
PVDF Kynar 70/30: 20-30 year warranty against fade, chalk, peel, adhesion failure (manufacturer warranty + AAMA 2605 spec). Class I anodize: 20 year. Class II anodize: 10 year. Powder coat: 5-10 year. PVDF is the warranty leader.