Chromate free method of treating metal substrates to impart corrosion resistance and color to the substrate surface
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United States of America Patent
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-
Dec 23, 1986
Grant Date -
N/A
app pub date -
Jul 27, 1984
filing date -
Jul 27, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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