Process for treating metal with aqueous acidic composition that

Details Process for treating metal with aqueous acidic composition that Process for treating metal with aqueous acidic composition that

1994-06-14

1995-09-12

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148251, 148268, C23C 2248

Patent

active

054494141

ABSTRACT:
A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly galvanized steel, by a dry-in-place aqueous acidic liquid comprising:

REFERENCES:
patent: 3506499 (1970-04-01), Okada
patent: 3539403 (1970-11-01), Ries
patent: 5342456 (1994-08-01), Dolan

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