has anybody else had trouble with CAW's new double wt. POP? it doesn't
seem to print nearly as easily as their old single wt stock.
it requires a longer exposure, a longer pre-wash, and it gobbles up gold
toner very quickly. it seems to me the trouble might be citric acid used
to preserve the emulsion against fog. (Reilly mentions this in The
Albumen and Salted Paper Book) one thing that seems to help a bit is to
use a "start" bath between pre-wash and the alkaline gold toner. What's
a start bath? its the opposite of a stop bath - instead of acid it has
an alkalie in it. i used 10g of borax/litre. i left the print in the
start for one minute and then transfered it to the toner. this seemed to
condition the print and preserve the toner a little longer. the toner was a
standard borax/gold toner. the toner still needed frequent replenishment
however.
if anyone else has worked with this paper i would be interested in
hearing about the results.
thanks, peter mumford