Quote Originally Posted by Michael Mutmansky

People use various salts (at least the ones that work well) for PT/PD printing. I think that it comes down to personal preference based on the color results mostly. I like ammonium chloride.

Michael, Thanks for the info - so from what I have learned (from the many good folks here) sodium chloride, ammonium chloride, lithium chloride and cesium chloride are used (is there a reference as to what the color shift is with each?). Has anyone ever tried copper chloride and if so what were the results like? Are there other salts that are less common...

Sorry to OP, do not mean to hijack the thread.