Passification of zinc surfaces

Details Passification of zinc surfaces Passification of zinc surfaces

1995-12-05

1998-10-13

Phasge, Arun S.

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Depositing predominantly single metal coating

205724, C25D 306

Patent

active

058207414

ABSTRACT:
A trivalent chromium protective coating composition for zinc or a zinc plated article having an acid pH of about 3.0 to 4.0 and a process for coating the zinc or zinc plated article in which the article is contacted with the composition and trivalent chromium is deposited on the article by electrolysis and an article of zinc or zinc plate is coated with a protective trivalent chromium composition.

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patent: 4392922 (1983-07-01), Tomaszewski
patent: 4439285 (1984-03-01), Tomaszewski
patent: 4460438 (1984-07-01), Tardy et al.
patent: 4477315 (1984-10-01), Tomaszewski
patent: 4477318 (1984-10-01), Tomaszewski
patent: 5196109 (1993-03-01), Scott

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