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Anodized Architectural Aluminum combined with an Organic Seal

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Anodized Architectural Aluminum combined with an Organic Seal

Michael Turner, Douglas Penn, Richard Porosky, Tsutomu Ito, YKK AP America Inc.

Track: VALUE-ADDED PROCESSES - Anodizing

ABSTRACT --- The performance levels for anodized architectural aluminum, combined with
an organic seal, have recently been defined by the American Architectural Manufacturers
Association’s, AAMA, Voluntary Specification 612 (AAMA 612).[1] This surface coating yields
a final finish that reveals the intrinsic luster of aluminum, while also providing protection
against corrosion, erosion, and other elements. Aluminum articles are produced with a
surface coating of high-durability by first electrolytically oxidizing the article in an acidic
anodizing bath and, after water washing, depositing the article in a solution of a
thermosetting resin, then passing a current through the article as the anode to cause the
electrodeposition of resin particles to the oxidized porous surface. The article is then heated
to cure the resinous film.[2]

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