From: David Oliver (david.oliver@xtra.co.nz)
Date: 04/09/02-08:04:42 PM Z
Bob,
Why do you say that latex gloves won't work? Do they allow particular
chemicals to pass though? Where are the Nitrel gloves available from?
A related question too - how important is it to wear gloves when printing
and when developing using the Mike Ware cyanotype chemicals? I use a 2%
citric acid solution for the developer.
David Oliver
-----Original Message-----
From: Robert W. Schramm [mailto:schrammrus@hotmail.com]
Sent: Wednesday, 10 April 2002 11:03 a.m.
To: alt-photo-process-l@sask.usask.ca
Subject: Platinum respirator
There is no need for a respirator for platinum printing unless you insist on
heat drying your coated paper. This is a bad idea since little particles can
flake off and drift around the room. Besides, there is evidence that heat
drying will result in the loss of one or more steps (on a 21 step wedge) of
contrast.
I would suggest you wear gloves, however, as the sensitizer can be absorbed
through your skin. Also potassium oxalate developer, if you use it, is toxic
and can also be absorbed through your skin. If you use HCl to clear and you
are working with concentrated acid, don't pour water into acid but I suspect
you learned that in chemistry class. PS latex gloves won't work. Use Nitrel
(sp?) gloves (they are blue).
Bob Schramm
Check out my web page at:
also look at:
http://www.wlsc.wvnet.edu/www/pubrel/photo.html
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