Corrosion resistant metal sealing formulation

Details Corrosion resistant metal sealing formulation Corrosion resistant metal sealing formulation

1975-09-19

1978-01-24

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

148 621, 156666, 252 792, 252387, C09D 508

Patent

active

040701930

ABSTRACT:
A bright finish on a copper or copper alloy metal piece is sealed by dipping the piece in an aqueous solution of sodium bichromate, chromic acid and sulfuric acid followed by rinsing in cold and then hot water. The sealed piece is quite resistant to corrosion.

REFERENCES:
patent: 2824031 (1958-02-01), Stareck
patent: 2904414 (1959-09-01), Ostrander et al.
patent: 3301719 (1967-01-01), Groshart et al.
patent: 3351555 (1967-11-01), Byers et al.
patent: 3362911 (1968-01-01), Byers et al.

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