[Alt-photo] Sulfamic Acid & Aches HP for Cyanotype
agitprop at telus.net
Sat May 6 19:58:39 UTC 2017
I'm starting to experiment with Mike Ware's cyanotype process. To clear
Arches HP, I've followed the directions of other on the list and have
used sulfamic acid. I mixed up 2L solution and put through 12 Arches
papers. At the end of it, the solution was a light blue. Does this
indicate anything? I've read that a 3L solution will clear about 40
8x10 papers - just wondering if the light blue indicates exhaustion or
something along those lines?
Thanks, by the way, for a most informative mailing list - this is my
first post - I've learned a lot from it.
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