Process for the activation of nickel - phosphorous surfaces

Details Process for the activation of nickel - phosphorous surfaces Process for the activation of nickel - phosphorous surfaces

1994-08-26

1995-07-11

Utech, Benjamin L.

Coating processes

With pretreatment of the base

Preapplied reactant or reaction promoter or hardener

427305, 427437, 4274431, B05D 310

Patent

active

054319595

ABSTRACT:
Disclosed is a composition and process useful in activating nickel-phosphorous surfaces for subsequent plating thereon. A combination of sulfuric acid and ammonium sulfate is utilized to render otherwise non-catalytic nickel-phosphorous surfaces catalytic to subsequent plating.

REFERENCES:
patent: 4160049 (1979-07-01), Narcus
patent: 4181760 (1980-01-01), Feldstein
patent: 4636255 (1987-01-01), Tsuda et al.
patent: 5091225 (1992-02-01), Goto

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