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	Dear Donald: 
					
	"Copper gold galvanic during OSP application. " If you mean that there is
copper sticking to your gold tabs after OSP treatment then this has been a
problem we've had before too. It could be two things. One is that there
might be an electrical leak in your microetch that deposits the copper back
on the gold. I've seen it happen when recleaning panels. Our heater was
shorting into the bath. The other is, that if your running Lea Ronal OSP,
and see only copper depositing on the same fingers repeatedly like we did,
then the copper in the Conditioner is to high. Like above 60 ppm copper.
Dilution is the solution. High copper in the Concentrate just gives you
spotting in which case dilution is the only solution again. Unless the
copper can be electrowinned out of the bath. I will be experimenting with
both bath soon. Other than that I couldn't tell you without any more
information.
Marc

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