C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/22.5
C25D 11/04 (2006.01) B05D 7/16 (2006.01) C09D 5/08 (2006.01) C25D 11/18 (2006.01) C25D 11/24 (2006.01)
Patent
CA 1111368
Abstract of the Disclosure A process is described for sealing anodic coatings on aluminum and the alloys of aluminum while simultaneously impregnating the anodic coating with organic resin during the sealing operation, thereby providing a protec- tive coating to the anodized aluminum which, among other things has superior corrosion resistant characteristics. A specified water-borne resin coating material possessing excellent stability at temperatures in excess of 170°F is used to convert the unsealed anodic coating to the monohydrate/trihydrate form of aluminum oxide during the sealing step of an otherwise conventional aluminum anodizing process. Subsequently, the sealed anodic film is cured at temperatures up to 500°F. This process provides a total protection system having characteristics superior to separately sealed and organically primed aluminum obtained through conventional processing.
308273
Bradley Robert E.
Keithler William R.
Lockheed Corporation
Smart & Biggar
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