Rather that try all sorts of alternatives, why not go back to the ORIGINAL product used for cleaning your glass plates.
Rottenstone. You can either premix it into a slurry or just sprinkle some as a powder and using a paper towel dipped in alcohol or distilled water, polish the glass with it.
Nice thing is it is PH neutral and has no chemical additives that can add another element of contamination into your silver bath.
this is one pound,.....it will outlast your collodion career.
Edited 1 time(s). Last edit at 08/14/2008 03:05PM by Ray Morgenweck.