Christine Fennimore on fri 6 dec 96
I have a modemless friend who asked me to querry the list about a problem
she is having. She is in a shared studio situation and one of the other
potters does low fire saggar work and she does cone 10 porcelain in a 45 cu
ft downdraft cantenary arch kiln. The potter doing the saggar firings has
increased her production lately and they are now alternating firings. My
friend is getting LOTS of pinholing and pitting in her pots and is wondering
if this could be the result of left over chemicals inside the kiln from the
saggar firings. Has anyone else had any experience with this? Would firing
an empty kiln in between be helpful, say to cone 1, in getting rid of any
left over chemistry? Thanks in advance for any advice and help you can offer.
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Christine Fennimore fennimor@spot.colorado.edu
Native American Rights Fund www.narf.org
Boulder, Colorado The Journey's All There Is.
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"Rafael Molina-Rodriguez (Rafael Molina-Rodriguez)" on tue 17 dec 96
Christine :
I've fired low-fire saggar and high-fire soneware/porcelain alternately in
the same Alpine 24 cu. ft. kiln for years without any adverse effects to
kiln or pots.
IMHO, the salt and other organic materials that are placed in the saggar
combust so locally that whatever does escape the saggar just exhausts
right out the exit flue. I don't think the saggar firing is the source of
pinholing. You might explore other possibilities such as clay body,
bisque temp./time, etc.,...
Rafael
rmr3431@dcccd.edu
>>> Christine Fennimore 12/06/96
03:50am >>>
----------------------------Original message----------------------------
I have a modemless friend who asked me to querry the list about a
problem
she is having. She is in a shared studio situation and one of the other
potters does low fire saggar work and she does cone 10 porcelain in a
45 cu
ft downdraft cantenary arch kiln. The potter doing the saggar firings has
increased her production lately and they are now alternating firings. My
friend is getting LOTS of pinholing and pitting in her pots and is
wondering
if this could be the result of left over chemicals inside the kiln from the
saggar firings. Has anyone else had any experience with this? Would
firing
an empty kiln in between be helpful, say to cone 1, in getting rid of any
left over chemistry? Thanks in advance for any advice and help you can
offer.
<|><|><|><|><|><|><|><|><|><|><|><|><|><|><|><|><|><|><|><|><|><|>
Christine Fennimore fennimor@spot.colorado.edu
Native American Rights Fund www.narf.org
Boulder, Colorado The Journey's All There Is.
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