Chromate free method of treating metal substrates to impart corr

Details Chromate free method of treating metal substrates to impart corr Chromate free method of treating metal substrates to impart corr

1984-07-27

1986-12-23

Silverberg, Sam

Metal treatment

Compositions

Heat treating

8522, C23C 2248

Patent

active

046310932

ABSTRACT:
Chromate-free aqueous solutions for treating metal surfaces to impart corrosion resistance and decorative colors are disclosed. The treated metal surface equals or exceeds ASTM adhesion standards for chromate treated metal surfaces. The solutions can be used to give the metal surface a wide range of colors.

REFERENCES:
patent: 2238771 (1941-04-01), Cheslar
patent: 2393640 (1946-01-01), King
patent: 3079309 (1963-02-01), Wainer
patent: 4391894 (1985-07-01), Shimazu
Needles, Handbook of Textile Fibers, Dyes and Finishes, 5/10/82.

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