Hannah Brehmer on wed 6 nov 02
Hi-
My students are interested in taking a pot colored with that beautiful =
orange and gold which comes from postfire fuming with ferric chloride, =
applying raku slip-resist and refiring. The idea of those wonderful =
black crackle patterns over the color sounds beautiful, but I'm =
concerned about firing ferric chloride and how much toxic fumes it =
could put into the school atmosphere. (Administration already looks =
warily at our smoke and fire.) Just the fuming process seems a little =
risky. Anybody have ideas about this?
Thanks, and good wishes to all,
Hannah Brehmer
South Lake Tahoe, CA
Jim Bob Salazar on wed 6 nov 02
hey hanna,
we have a texas potter (randy broadnax) who uses the ferric chloride method
of firing pots and makes real pretty stuff. he also puts on one heck of a
workshop if your interested. as for refiring and color are concerned: if
you fire the pot up again you are going to burn off the color and you are
gonna have another raku pot, not that that's a bad thing. it seems that
everything potters do these days is dangerous and hazardous to our health or
our surroundings. some will tell you are crazy for even dealing with the
chemical and others will tell you that you are a "bad person" and your
damaging the world we live in. i say, go for it and have fun! make your
students aware of what you are doing and the possible dangers. just use
your common sense. if you do fire it up again stay up wind of the firing
and you and your students will be fine. i would however not recommend doing
this firing inside a classroom, it must me done outside. good luck with
your experiment.
jim bob
----- Original Message -----
From: "Hannah Brehmer"
To:
Sent: Wednesday, November 06, 2002 8:52 AM
Subject: Refire pieces fumed with ferric chloride?
Hi-
My students are interested in taking a pot colored with that beautiful
orange and gold which comes from postfire fuming with ferric chloride,
applying raku slip-resist and refiring. The idea of those wonderful black
crackle patterns over the color sounds beautiful, but I'm concerned about
firing ferric chloride and how much toxic fumes it could put into the
school atmosphere. (Administration already looks warily at our smoke and
fire.) Just the fuming process seems a little risky. Anybody have ideas
about this?
Thanks, and good wishes to all,
Hannah Brehmer
South Lake Tahoe, CA
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Craig Clark on wed 6 nov 02
Hannah, as you have surmised the fumes from the post reduction firing
using ferric chloride are potentially quite detrimental to ones health and
the health of the group if they find they're way into the ventilation system
of the school.
If you decide to do any type of ferric chloride with students (how old
are they?), which I wouldn't reccomend, then be certain that you and those
in the immediate area use resperators with the proper canisters. This is not
a joke. You may do serious damage to your lungs and th associated mucous
membranes if you get a lung full of the fumes. Best advice to give is that
if the fumes come you're way move and don't breath.
If you fire the refractory slip much above a thousand degress or so you
will probably also change the quality imparted by the ferric chloride in the
previous firing. You may get some intereresting results. Don't really know.
It's worth a try with a few pieces, but not with younger folks around!
Craig Dunn Clark
619 East 11 1/2 st
Houston, Texas 77008
(713)861-2083
mudman@hal-pc.org
----- Original Message -----
From: Hannah Brehmer
To:
Sent: Wednesday, November 06, 2002 6:52 AM
Subject: Refire pieces fumed with ferric chloride?
Hi-
My students are interested in taking a pot colored with that beautiful
orange and gold which comes from postfire fuming with ferric chloride,
applying raku slip-resist and refiring. The idea of those wonderful black
crackle patterns over the color sounds beautiful, but I'm concerned about
firing ferric chloride and how much toxic fumes it could put into the
school atmosphere. (Administration already looks warily at our smoke and
fire.) Just the fuming process seems a little risky. Anybody have ideas
about this?
Thanks, and good wishes to all,
Hannah Brehmer
South Lake Tahoe, CA
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
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