Why is pot metal blistering when plated?
++++ Having trouble with blistering when trying to put a copper strike, cyanide copper on pot metal. The hardware I run with these parts are zinc die cast and they are fine. To my knowledge pot metal should use the same process as zinc die cast. The parts are restoration parts, that we put on acid copper after cyanide copper to fill in the pits. My process now is: degrease (tce) soak clean electroclean acid dip copper strike cyanide copper Please advise! Steve Bouton plating foreman – Byron, Illinois, USA +++ My bet is they are an aluminum alloy which you’ll need to zincate first.
