Composition and method for coating metal surfaces

C - Chemistry – Metallurgy – 23 – F

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148/18

C23F 11/00 (2006.01) C09D 5/12 (2006.01) C23C 22/33 (2006.01)

Patent

CA 1132887

COMPOSITION AND METHOD FOR COATING METAL SURFACES ABSTRACT OF THE DISCLOSURE This application is concerned with the treatment of metal surfaces with stable solutions of hexavalent chromium, trivalent chromium, phosphoric acid, polyacrylic acid and water dispersible acrylic emulsion polymer to enhance the corrosion resistance and paint adhesion properties of the metal, the coating uniquely having generally universal utility under a wide variety of paint systems and paint types.

320175

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