[Alt-photo] Sulfamic Acid & Aches HP for Cyanotype

David Christensen agitprop at telus.net
Sat May 6 20:34:29 UTC 2017


Hi, Serdar.

No - I used some neoprene gloves from Lee Valley:

http://www.leevalley.com/en/wood/page.aspx?p=31200&cat=1,190,43040

David



On 2017-05-06 2:03 PM, Serdar Bilici wrote:
> Hi David,
>
> Did you use any disposable or reusable gloves? Nitril or latex? They 
> might be the source of color.
>
>
> Serdar
>
> On Sat, May 6, 2017 at 10:58 PM, David Christensen via 
> Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org 
> <mailto:alt-photo-process-list at lists.altphotolist.org>> wrote:
>
>     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.
>
>     David
>
>     _______________________________________________
>     Alt-photo-process-list | altphotolist.org <http://altphotolist.org>
>
>



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