Method of providing corrosion resistance to metal surfaces

Details Method of providing corrosion resistance to metal surfaces Method of providing corrosion resistance to metal surfaces

1977-05-23

1978-10-17

Hoffman, James R.

Coating processes

With pretreatment of the base

Heating or drying pretreatment

427327, B05D 310, B05D 300, B05D 138

Patent

active

041209966

ABSTRACT:
A method of providing corrosion resistance to metal surfaces is disclosed. The method of the invention involves treating the metal surfaces with an ascorbic acid (Vitamin C)-containing composition free of beta-diketones and preferably in combination with molybdenum. The invention is particularly effective as a passivating pretreatment for ferrous metal substrates which are to be subsequently topcoated.

REFERENCES:
patent: 1798218 (1931-03-01), Pacz
patent: 3349043 (1967-10-01), Manning
patent: 3586543 (1971-06-01), Iijima et al.
Levyanto et al, Chem. Abstr., vol. 76, 62213 (1972; Abstract of Konserv. Ovoshchesush, Prom. 1971, 26(9), 13-14.

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