Christina,
I use the traditional potassium oxalate. It is tried and true and lasts
forever. What I mean by that is that I have a 2 liter bottle of it and as
I make a few prints and notice that the level is low in the bottle I will
replenish it with fresh solution.
I print with pure palladium for gum over palladium. I use Na2PtCl4
addition for contrast control if needed. My developer has a lot of
palladium and traces of platinum as a result of my pratice.
Marek M
> Hi all,
> I intend to make a first foray into platinum/palladium gum overs, and
> was wondering which developer is preferred, or do you inveterate pt/pd
> printers have several in your darkroom?
> ammonium citrate
> potassium citrate
> sodium citrate
> sodium acetate
> potassium oxalate
> Dick Sullivan's "in a pinch" baking soda/vinegar sodium acetate
> I will be using EDTA di plus citirc acid for clearing (a la Clay
> Harmon).
> Being a total novice at pt/pd, I hope I am not asking a beating a
> dead
> horse question like gum stain (Sandy, forgive me) :)
> Chris
>
>
>
Received on Thu May 6 13:12:00 2004
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