It should be noted however that most commercial plants that produced
photo-enamels and photoceramics used dichromated colloid processes.
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Luis
Does this manual suggest applying the platinum to the print before it is
fired ? My own experiments seemed to demonstrate the the metals would burn
during the firing. As you imply, applying a carbon print or a gum print
to the pot while it is in biscuit is a fairly simple matter. The pot is
then glazed and fired. One must remember, of course, to use pigments that
will withstand the heat.
Terry King