Compositions and process for metal treatment

Details Compositions and process for metal treatment Compositions and process for metal treatment

C - Chemistry, Metallurgy

23

F

148/17, 134/51

C23F 11/167 (2006.01) C01G 23/00 (2006.01) C23C 22/80 (2006.01)

Patent

CA 1309315

COMPOSITIONS AND PROCESS FOR METAL TREATMENT ABSTRACT Compositions and process for activating metal surfaces prior to coating with zinc phosphate are disclosed. A Jernstedt salt concentrate is provided which can be employed to prepare Jernstedt salt baths of the type desired by combining the concentrate with additional alkali metal phosphate. Improved activation of metal surfaces are achieved by incorporating a chloride ion producing compound in the activating bath.

571873

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