Clear Anodized, Class I – Stock
Dark Bronze Anodized, Class I – Stock
Custom Earth Tones – Special Order
One of the unique traits of aluminum is its ability to be anodized, a process like no other. There are several grades of anodizing but Fleetwood uses the best: Class I. Among many other notable uses, the U.S. military also uses it on their aircraft to protect against corrosion. If cared for properly, anodizing can last a lifetime (Care & Maintenance Instructions).
What is involved in the anodizing process?
First, we apply a proprietary treatment to all surface areas of the aluminum to remove cooling lines and other natural imperfections. Fleetwood is the only aluminum window manufacturer that provides this level of quality.
Second, each stick of aluminum is cleaned in multiple bath solutions to prepare it for anodizing.
Third, each stick is submerged in a bath of electrically charged hydrochloric acid. The chemical reaction changes aluminum oxide to aluminum hydrate in the grain of the aluminum, creating an exceptionally hard surface.
Finally, each extrusion is dipped into a chemical solution that seals the new, harder anodized surface. Anodizing is naturally “clear” so if an earth tone color is desired, the clear anodized metal is dipped in a color tank before sealing. Fleetwood offers a Light Bronze, Medium Bronze, and Dark Bronze, the latter of which is a stock finish. Custom anodized metal is not an exact science and variations will exist from part to part. If precise color matching is required, we recommend paint.