Method for the preliminary treatment of plastic surfaces for ele

Details Method for the preliminary treatment of plastic surfaces for ele Method for the preliminary treatment of plastic surfaces for ele

1974-02-06

1976-05-25

Gwinnell, Harry J.

Coating processes

Immersion or partial immersion

204 30, 204 38E, 427306, B05D 118, B05D 310

Patent

active

039595641

ABSTRACT:
In the pickling and activation of plastic surfaces with a chromo-sulfuric acid bath containing a noble metal chloride, the bath is boiled prior to use for a period of time sufficient to eliminate substantially all free chlorine present. Thereafter the plastic surface is pickled and activated in the bath, and then chemical metal plated.

REFERENCES:
patent: 3437507 (1969-04-01), Jensen
patent: 3507681 (1971-04-01), Cooper

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