Rinsing coated metallic surfaces

Details Rinsing coated metallic surfaces Rinsing coated metallic surfaces

1973-01-04

1977-06-21

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 315, 148 616, 427309, 427341, 427435, C23F 726

Patent

active

040309452

ABSTRACT:
A metallic surface is coated with a polymeric resinous coating by immersing the surface in an acidic aqueous coating composition comprising polymeric resinous coating-forming material and an oxidizing agent. The corrosion resistance and/or the surface appearance of the resinous coating is modified by rinsing the coating with an aqueous rinse solution containing hexavalent chromium or an aqueous rinse solution containing hexavalent chromium and reduced forms of chromium.

REFERENCES:
patent: 3063877 (1962-11-01), Schiffman
patent: 3585084 (1971-06-01), Steinbrecher et al.

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