Copper Plating of Brass
Q. Can we plate copper directly onto brass faucets using an acid copper bath? We currently use cyanide copper on the brass prior to the acid copper but would like to eliminate the use of cyanide in our operations. S.J.
A. You cannot plate a brass substrate directly with acid copper, because the acid in the acid copper bath will attack the brass substrate and give you unsatisfactory results. However, a number of chemical vendors sell alkaline non-cyanide copper plating baths that can be used in the application of a copper strike prior to plating with acid copper. Find those vendors in the PFOnline supplier database.
Masking is employed in most any metal finishing operation where only a specifically defined area of the surface of a part must be exposed to a process. Conversely, masking may be employed on a surface where treatment is either not required or must be avoided. This article covers the many aspects of masking for metal finishing, including applications, methods and the various types of masking employed.
An overview of precious metal electroplating processes.
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