Method of improving corrosion resistance of metal substrates by

Details Method of improving corrosion resistance of metal substrates by Method of improving corrosion resistance of metal substrates by

1976-04-02

1977-10-11

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 614R, 148 615Z, 148 624, 148 315, 427327, 427328, C23F 902, C23F 710

Patent

active

040533298

ABSTRACT:
A method of providing improved corrosion resistance to coated metal substrates is disclosed. The process of the invention involves a passivating pretreatment with an onium salt before coating. The invention is particularly effective with ferrous metal substrates.

REFERENCES:
patent: 2941949 (1960-06-01), Saukaitis
patent: 3036305 (1962-05-01), Channabasoppa et al.
patent: 3136663 (1964-06-01), McDonald
patent: 3330672 (1967-07-01), Kroll et al.
patent: 3359322 (1967-12-01), Ratts
patent: 3387954 (1968-06-01), Capowski et al.
patent: 3493440 (1970-02-01), Ashdown
patent: 3664807 (1972-05-01), Redmore
patent: 3668137 (1972-06-01), Gardner

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