Powder Coated Exterior Finish

High Durability, Weather Resistant, Many Color Choices

Sun uses a powder coated exterior finish for our aluminum-clad windows and doors because of its outstanding weather resistance, film toughness, extensive range of colors, and its low environmental impact.

Our powder coated aluminum extrusions have a thick, hard finish which is more durable than conventional painted finishes. The finish has a long life with excellent resistance to chipping, cracking, peeling, and fading.

Our standard finish meets AAMA 2604 requirements and allows us to provide a 20-year finish warranty. An optional AAMA 2605 finish is available for projects requiring more specialized coverage. This option qualifies for a 30-year finish warranty.

See Our Exterior Colors

The Powder Coating Process

Powder Coating is paint in powder form. This dry pigment powder is applied to an aluminum extrusion that has been prepared in a multi-stage cleaning process. A negative electrical charge is applied to the extrusion and as the powder is sprayed, the negative charge attracts and holds the positively charged powder in place. The coated extrusion is then heated in an oven that bakes on the finish. The extrusion is removed from the oven, allowed to cool, and (after inspection) sent on for product production.

The coated extrusions now have a hard finish which is tougher than conventional painted finishes. Powder-coated surfaces have a long life and are resistant to chipping, cracking, peeling, and fading.

Powder Coating is also environmentally friendly, with virtually no VOCs and no lead or chromium in any of the processes.

Powder Coating being applied
Powder Coated Extrusions passing through spray booth