Dear Technetters, 

Anyone out there who would like to share
knowledge techniques to control an acid
copper-chloride etching solution?. I´m especially
interested in experience with the "Vis-U-Etch"
controller, compared with the more commonly used
methode of separately measuring/controlling
S.G, ORP and Normality. I just came across it on the 
www, not very known "over here" Does it actually work
as claimed, and does it take a propriotary oxidizer
to work. Any information would be appreciated.

thanks

Torben Østeraa
Printca AS
Denmark

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