Rinsing solutions for acid cleaned iron and steel surfaces

Details Rinsing solutions for acid cleaned iron and steel surfaces Rinsing solutions for acid cleaned iron and steel surfaces

1975-05-05

1976-08-10

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

134 27, 134 28, 134 29, 106 74, 427309, 427327, 252527, C23C 902

Patent

active

039739988

ABSTRACT:
Metal surfaces, after being cleaned of rust with an aqueous acid solution, are rinsed with an aqueous solution of a chelating agent and an ammonium or alkali metal silicate. Such rinsed surfaces remain rust free for extended periods of time. When coated with primer and top-coat paints, excellent durability and corrosion resistance are obtained.

REFERENCES:
patent: 1555798 (1925-09-01), Gravell
patent: 3154438 (1964-10-01), Keller et al.
patent: 3368913 (1968-02-01), Ziehr et al.
patent: 3699052 (1972-10-01), Petrey et al.
patent: 3847663 (1974-11-01), Shumaker

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