Jonathan Kaplan on thu 12 mar 98
Posting for one of my students in our handbuilding class:
Interested in what constitutes a good inclusion for sagger firing, amount
of assorted garbage and sawdust in the sagger, etc. She wants to know if
you put garbage stuff in the inside of the piece in the sagger. Also, what
metallic chlorides to use, if any, to moisten the sawdust.
I'm kind of clueless with sagger firing, but I understand the basics.
TIA
Jonathan
Jonathan Kaplan, president jonathan@csn.net
http://www.sni.net/ceramicdesign/
Ceramic Design Group Ltd./Production Services
PO Box 775112
Steamboat Springs CO 80477
(USPS deliveries only)
Plant Location
1280 13th Street Unit 13
Steamboat Springs CO 80487
( UPS, courier, and common carrier deliveries)
(970) 879-9139*voice and fax
http://www.sni.net/ceramicdesign/
http://digitalfire.com/education/clay/kaplan1.htm
Barbara Lewis on fri 13 mar 98
Jonathan and Lisa, I've been doing saggar firing for the past three years or
so. I wrap banana peels around the saggar with copper wire. But I think I
get most of the color from the copper sulphate and iron sulphate I mix with
water and then use to dampen the vermiculite placed around the piece. I use
gloves, a respirator, and drill mix the stuff. It is very toxic. Sawdust
creates blacks and provides interesting contrasts of color. Keep the saggar
as airtight as possible, otherwise the fuming escapes into the atmosphere
and out of the saggar. I know others have recommended seaweed, dog food,
eggshells, etc. to impart color to the piece. However, my experience has
been that the sulphates seem to be mostly responsible for the color. Oh, and
bisque fire really low - ^010. Good luck, Barbara.
At 08:00 AM 3/12/98 EST, you wrote:
>----------------------------Original message----------------------------
>Posting for one of my students in our handbuilding class:
>
>Interested in what constitutes a good inclusion for sagger firing, amount
>of assorted garbage and sawdust in the sagger, etc. She wants to know if
>you put garbage stuff in the inside of the piece in the sagger. Also, what
>metallic chlorides to use, if any, to moisten the sawdust.
>
>I'm kind of clueless with sagger firing, but I understand the basics.
>
>TIA
>
>
>Jonathan
>
>
>
>Jonathan Kaplan, president jonathan@csn.net
> http://www.sni.net/ceramicdesign/
>Ceramic Design Group Ltd./Production Services
>PO Box 775112
>Steamboat Springs CO 80477
>(USPS deliveries only)
>
>Plant Location
>1280 13th Street Unit 13
>Steamboat Springs CO 80487
>( UPS, courier, and common carrier deliveries)
>
>(970) 879-9139*voice and fax
>
>http://www.sni.net/ceramicdesign/
>http://digitalfire.com/education/clay/kaplan1.htm
>
WellSpring ClayWorks
5412 Well Spring Road
La Plata, MD 20646
(301) 932-3915
Cheryl L Litman on sat 14 mar 98
The current issue of Clay Times has a nice article on saggar firing.
Cheryl Litman
Somerset, NJ
email: cheryllitman@juno.com
On Thu, 12 Mar 1998 08:00:41 EST Jonathan Kaplan
writes:
>----------------------------Original
>message----------------------------
>Posting for one of my students in our handbuilding class:
>
>Interested in what constitutes a good inclusion for sagger firing,
>amount
>of assorted garbage and sawdust in the sagger, etc. She wants to know
>if
>you put garbage stuff in the inside of the piece in the sagger. Also,
>what
>metallic chlorides to use, if any, to moisten the sawdust.
>
>I'm kind of clueless with sagger firing, but I understand the basics.
>
>TIA
>
>
>Jonathan
>
>
>
>Jonathan Kaplan, president jonathan@csn.net
> http://www.sni.net/ceramicdesign/
>Ceramic Design Group Ltd./Production Services
>PO Box 775112
>Steamboat Springs CO 80477
>(USPS deliveries only)
>
>Plant Location
>1280 13th Street Unit 13
>Steamboat Springs CO 80487
>( UPS, courier, and common carrier deliveries)
>
>(970) 879-9139*voice and fax
>
>http://www.sni.net/ceramicdesign/
>http://digitalfire.com/education/clay/kaplan1.htm
>
_____________________________________________________________________
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Barbara Lewis on sat 14 mar 98
I need to make a correction: I meant to say I wrap banana peels around the
ceramic piece (I usually use porcelain). Barbara
At 07:45 AM 3/13/98 EST, you wrote:
>----------------------------Original message----------------------------
>Jonathan and Lisa, I've been doing saggar firing for the past three years or
>so. I wrap banana peels around the saggar with copper wire. But I think I
>get most of the color from the copper sulphate and iron sulphate I mix with
>water and then use to dampen the vermiculite placed around the piece. I use
>gloves, a respirator, and drill mix the stuff. It is very toxic. Sawdust
>creates blacks and provides interesting contrasts of color. Keep the saggar
>as airtight as possible, otherwise the fuming escapes into the atmosphere
>and out of the saggar. I know others have recommended seaweed, dog food,
>eggshells, etc. to impart color to the piece. However, my experience has
>been that the sulphates seem to be mostly responsible for the color. Oh, and
>bisque fire really low - ^010. Good luck, Barbara.
>
>At 08:00 AM 3/12/98 EST, you wrote:
>>----------------------------Original message----------------------------
>>Posting for one of my students in our handbuilding class:
>>
>>Interested in what constitutes a good inclusion for sagger firing, amount
>>of assorted garbage and sawdust in the sagger, etc. She wants to know if
>>you put garbage stuff in the inside of the piece in the sagger. Also, what
>>metallic chlorides to use, if any, to moisten the sawdust.
>>
>>I'm kind of clueless with sagger firing, but I understand the basics.
>>
>>TIA
>>
>>
>>Jonathan
>>
>>
>>
>>Jonathan Kaplan, president jonathan@csn.net
>> http://www.sni.net/ceramicdesign/
>>Ceramic Design Group Ltd./Production Services
>>PO Box 775112
>>Steamboat Springs CO 80477
>>(USPS deliveries only)
>>
>>Plant Location
>>1280 13th Street Unit 13
>>Steamboat Springs CO 80487
>>( UPS, courier, and common carrier deliveries)
>>
>>(970) 879-9139*voice and fax
>>
>>http://www.sni.net/ceramicdesign/
>>http://digitalfire.com/education/clay/kaplan1.htm
>>
>
>WellSpring ClayWorks
>5412 Well Spring Road
>La Plata, MD 20646
>(301) 932-3915
>
WellSpring ClayWorks
5412 Well Spring Road
La Plata, MD 20646
(301) 932-3915
Suzanne Storer on thu 14 may 98
I am looking for sources of detailed information on attaining color via
sagger firing at about cone 05 - 010 or so. I'd be grateful if you passed
along the name of such a book etc. and locations of any workshops on sagger
firiing in the west this summer or fall.
I'm also looking for a sagger container clay formula that is strong and has
the best chance of holding up well under multiple firings without breaking
apart.
Thanks ahead,
Suzanne Storer-in-Utah where it's raining daily and the desert is GREEN.
Dannon Rhudy on fri 15 may 98
Suzanne, if you'll post your email address, I'll send you some
saggar information, not to clutter the list; most has been posted
before.
Dannon Rhudy
potter@koyote.com
----------------------------Original
message----------------------------
I am looking for sources of detailed information on attaining
color via
sagger firing at about cone 05 - 010 or so. I'd be grateful if
you passed
along the name of such a book etc. and locations of any workshops
on sagger
firiing in the west this summer or fall.
I'm also looking for a sagger container clay formula that is
strong and has
the best chance of holding up well under multiple firings without
breaking
apart.
Thanks ahead,
Suzanne Storer-in-Utah where it's raining daily and the desert
is GREEN.
Vanessa Hewitt on thu 27 may 99
Hello,
Can anyone recommend some good books or articles on sagger firing proceedures?
Vanessa Hewitt
Columbia, S.C.
Mark Burleson on sat 29 may 99
Hi Vanessa,
Odyssey Center for the Ceramic Arts in Asheville, NC will be hosting a
woekshop in Photographic Imaging on Clay with Mark Burleson from July 18
- 23, 1999. We will cover the production of ceramic decals at that
time.
We also have a pit firing workshop, not sagger, but could be related and
interesting. That workshop is June 7 - 11. If you would like more
information, please call 828.285.0210.
Antoinette Badenhorst on sat 3 jul 99
Hi everybody, although I`ve been busy with pitfiring for a long time
now, I never did some sagger firing or blackfiring. I have specific
questions in this regard and will appreciate it if these some of you
will respond.
-I want to know what clay to use when making a sagger. Can I use any
clay and just add coarse sand to it? How thick should the walls be?
-Will it last for long?
-How much organic material will be enough. I believe that if you cover
the pot in full there will be no air flo. Do I seal the sagger very
well or do I leave an opening.
Did any one ever glazed and then sagger fired the piece?
Any info concerning saggers will be welcome.
Thank you so long.
Antoinette.
===
Antoinette Badenhorst
PO Box 552
Saltillo,Mississippi
38866
Telephone (601) 869-1651
timakia@yahoo.com
_________________________________________________________
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Get your free @yahoo.com address at http://mail.yahoo.com
pam pulley on mon 5 jul 99
Antoninette,
I do my sagger firing while I'm pit firing using a paint can. A new can
never used I get from a paint store, (metal ofcourse, there are plastic ones
out there. I layer sawdust, wood shavings and small pots inside, and put a
couple of nail holes in the lid. Only takes trying it once without the
holes to have a flying lid taking off to not do that again. Greatest black
and irridesent blacks I've ever have gotten. Another soul in our coop just
wrapped newspaper around her pieces and ended up with lovely black pots
(buried deep in sawdust before firing). good luck with the new ideas you
try.
>From: Antoinette Badenhorst
>Reply-To: Ceramic Arts Discussion List
>To: CLAYART@LSV.UKY.EDU
>Subject: Sagger firing
>Date: Sat, 3 Jul 1999 09:37:17 EDT
>
>----------------------------Original message----------------------------
>
>Hi everybody, although I`ve been busy with pitfiring for a long time
>now, I never did some sagger firing or blackfiring. I have specific
>questions in this regard and will appreciate it if these some of you
>will respond.
>-I want to know what clay to use when making a sagger. Can I use any
>clay and just add coarse sand to it? How thick should the walls be?
>-Will it last for long?
>-How much organic material will be enough. I believe that if you cover
>the pot in full there will be no air flo. Do I seal the sagger very
>well or do I leave an opening.
>Did any one ever glazed and then sagger fired the piece?
>Any info concerning saggers will be welcome.
>Thank you so long.
>Antoinette.
>
>===
>Antoinette Badenhorst
>PO Box 552
>Saltillo,Mississippi
>38866
>Telephone (601) 869-1651
>timakia@yahoo.com
>_________________________________________________________
>Do You Yahoo!?
>Get your free @yahoo.com address at http://mail.yahoo.com
>
>
_______________________________________________________________
Get Free Email and Do More On The Web. Visit http://www.msn.com
Richard mahaffey on tue 6 jul 99
Antoinette Badenhorst,
You can use any clay for the sagger, as long as it is high temp. clay.
It may not last for more than a few firings. We wrap our thrown saggers
with Kantol element wire, which is put in a groove trimmed in the sides of
the sagger, to hold them together.
You can seal the sagger, or not seal it. I use kiln putty (50-50 epk and
silica). I seal it just before I fire, bad results with the putty sitting
over night.
If you want black and white pack it full of organic material. If you want
more color try less maybe 40% full.
I like a low iron clay (but it needs some).
Try different temperatures and firing schedules.
Try different materials inside. Be careful of Glavinized metal, Zinc gas
is nasty stuff.
Try different terra siggilattas.
KEEP GOOD NOTES.
Try everything you can think of.
I hope this helps.
Rick Mahaffey
Tacoma Community College
Tacoma Washington, USA
tomsawyer on tue 27 feb 01
Gads, I sick of all this lawyer stuff to which I've been responding. Now =
for some clay stuff.....
I'm wanting to do a modified saggar firing and need some advice. I =
believe it was Dannon that had an article in Clay Times some months ago =
where she was using a slurry over carbonaceous materials on top of =
bisque and glazed pots and refiring to gain some reduction effects. My =
idea stems from this article. I am wanting to roll out some slabs of =
paper clay from which I wll make a box to place a glazed pot inside. =
Will I need to supply an air hole? I'm thinking I could roll out some =
paperclay slabs cut them in square and retangular shapes and lay them =
aside for future use. This should be possible because we can rewet =
completely dry paper clay and join the ends together. After setting the =
bisque and glazed pot inside, the container would be filled with =
sawdust/peat etc and a lid placed on top that could be completely sealed =
air tight. Would this explode? Will I need to supply an air hole? Do =
persons employing saggars allow a vent for the air to escape?
Tom Sawyer
tsawyer@cfl.rr.com
Dannon Rhudy on tue 27 feb 01
Tom, the article you referred to was in Pottery Making
Illustrated. But the pots I fired inside the paper
saggars were not GLAZED. They were burnished and
bisqued, and then fired with combustible materials packed
inside the paper saggar. That is where the color came
from.
There is no reason you could not use paper clay for a
saggar. I have in fact done that, placing a glazed
piece inside the paper clay container, firing to cone 10.
The Chinese, and others, used saggars all the time -
they could be stacked, no shelves needed, and it
protected the glaze from the fly ash of wood/coal
fired kilns.
And, I have placed sawdust in a container with an
UNglazed piece, and fired to cone 10. But I don't
think putting a glazed piece in a container filled
with sawdust would work too well, I imagine all kinds
of junk getting/staying in the glaze. However, maybe
it would all burn out, and, ummmm- well, if you try it,
report back, eh?
Some people put air holes in saggars, some don't. I
don't, usually. But I fire the first part of the
firing very slowly, if the saggar is green.
regards
Dannon Rhudy
.... an article in Clay Times some months ago where she was using a slurry
over carbonaceous materials on top of bisque and glazed pots and refiring
to gain some reduction effects. My idea stems from this article. I am
wanting to roll out some slabs of paper clay from which I wll make a box to
place a glazed pot inside. Will I need to supply an air hole? I'm thinking
I could roll out some paperclay slabs cut them in square and retangular
shapes and lay them aside for future use. This should be possible because
we can rewet completely dry paper clay
Karin Abromaitis on thu 1 mar 01
I've been doing a bit of saggar firing in my electric kiln. Threw saggar
out of Standard 153, with a double flanged lid to make it more airtight. No
airhole necessary-no explosions. Only have used it with burnished and low
temp bisqued ware (cone 010). Nest bowls with lots of sawdust and fire to
either cone 010 or 080. Stuff comes out a beautiful jet black, sometimes
mottled-very nice. Good luck!
Karin A.
Kabromaitis@msn.com
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of tomsawyer
Sent: Tuesday, February 27, 2001 7:45 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Sagger Firing
Gads, I sick of all this lawyer stuff to which I've been responding. Now for
some clay stuff.....
I'm wanting to do a modified saggar firing and need some advice. I believe
it was Dannon that had an article in Clay Times some months ago where she
was using a slurry over carbonaceous materials on top of bisque and glazed
pots and refiring to gain some reduction effects. My idea stems from this
article. I am wanting to roll out some slabs of paper clay from which I wll
make a box to place a glazed pot inside. Will I need to supply an air hole?
I'm thinking I could roll out some paperclay slabs cut them in square and
retangular shapes and lay them aside for future use. This should be possible
because we can rewet completely dry paper clay and join the ends together.
After setting the bisque and glazed pot inside, the container would be
filled with sawdust/peat etc and a lid placed on top that could be
completely sealed air tight. Would this explode? Will I need to supply an
air hole? Do persons employing saggars allow a vent for the air to escape?
Tom Sawyer
tsawyer@cfl.rr.com
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william schran on tue 12 aug 03
I plan to offer a course in low fire techniques next summer to my
students. Each summer for the past "who can remember number of" years
I've offered classes in raku firing. Lots of experimenting - lots of
discovery!
I'd like to expand the technique base to sagger firing. I've done
many pit firings in the past and have experimented with multiple
materials for various effects. I've done some sagger firings in an
electric kiln, but when we get our gas kiln going, I'd like to do
lots more exploration of this process.
I will be searching the archives and the web, but if anyone would
please point me to any specific reference materials on sagger firing,
I would be most grateful.
Thanks, Bill
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