Posted 08/08/2008 5:03 pm
Also, Note that the coin to be cleaned should be the anode (Positive connection on the battery) so as to draw the contamination away from the coin. As Bonedigger points out you must only use a DC type LOW voltage source to prevent a potentially hazardous situation.
You may also want to insert a variable resistor in series so that you can control the amount of current. We use a process like this to "Electro-Clean" parts prior to copper plating them. The liquid you select will also have an effect on the cleaning performance. From my experience I would not use this method on coins the have any value, as the potential for surface pitting is almost guaranteed.
You may also want to insert a variable resistor in series so that you can control the amount of current. We use a process like this to "Electro-Clean" parts prior to copper plating them. The liquid you select will also have an effect on the cleaning performance. From my experience I would not use this method on coins the have any value, as the potential for surface pitting is almost guaranteed.
