Protective fluoride coatings for aluminum alloy articles

An aluminum alloy article is cleaned to remove oxides and organic matter from a coatable surface, coated with a composition comprising an organic resin and a fluorine compound, and then heated to an elevated temperature to decompose the organic resin and at least a portion of the fluorine compound....

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Bibliographic Details
Main Authors Jankosky, Sally A, Opalka, Susanne M, Kolek, Paula L, Harenski, Joseph P, Kaufold, Roger W, Wieserman, Larry F
Format Patent
LanguageEnglish
Published 19.04.2005
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Summary:An aluminum alloy article is cleaned to remove oxides and organic matter from a coatable surface, coated with a composition comprising an organic resin and a fluorine compound, and then heated to an elevated temperature to decompose the organic resin and at least a portion of the fluorine compound. After heating the coated surface is left with a protective oxyfluoride film that prevents blistering and hydrogen pickup and promotes hydrogen degassing from the article.