Multilayer non-stick coating of improved hardness for...

Details Multilayer non-stick coating of improved hardness for... Multilayer non-stick coating of improved hardness for...

C - Chemistry, Metallurgy

23

C

C23C 28/00 (2006.01) A47G 21/00 (2006.01) C25D 11/04 (2006.01) C25D 11/18 (2006.01)

Patent

CA 2246215

A multilayer non-stick coating of improved hardness for aluminum articles includes an alumina-based hard first layer obtained by anodic oxidation of the aluminum article immersed in an alkaline solution. Micro-arcs are applied to the article by means of a high current and a high potential difference. A second layer based on polytetrafluoroethylene and chemical agents constitutes a primer for one or more polytetrafluoroethylene-based finish layers.

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