COATING ALUMINUM WITH A STRIPPABLE COPPER DEPOSIT

摘要

An improvement in providing a mechanically strippable copper plate on an aluminum carrier is achieved by pretreating the aluminum carrier with an alkaline, aqueous, alkali metal zincate composition containing a small amount of` one or more water soluble iron, cobalt or nickel salts, and removing substantially all of the deposited zincate coating with acid prior to copper plating.