Pretreatment compositions for metals

Details Pretreatment compositions for metals Pretreatment compositions for metals

1983-07-11

1985-02-05

Silverberg, Sam

Metal treatment

Compositions

Heat treating

10628719, 148 627, C09K 300, C23G 120

Patent

active

044976674

ABSTRACT:
Solid and aqueous compositions containing a Jernstedt salt, a phosphate, a polyphosphate, a silicate, a carbonate, a hydroxide, a sequestrant, an anionic surfactant and a non-ionic surfactant. The aqueous solutions can be used at temperatures as low as 100.degree. F. to effectively clean and condition metallic surfaces prior to the application thereto of a conversion coating.

REFERENCES:
patent: 2310239 (1943-02-01), Jernstedt
patent: 2322349 (1943-06-01), Jernstedt
patent: 2456947 (1948-12-01), Jernstedt
patent: 2462196 (1949-02-01), Jernstedt
patent: 2490062 (1949-12-01), Jernstedt
patent: 2516008 (1950-07-01), Lum
patent: 2874081 (1959-02-01), Cavanagh
patent: 3741747 (1973-06-01), Hamilton
patent: 3864139 (1975-02-01), Heller
patent: 4370173 (1983-01-01), Dollman

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