Karen Sullivan on thu 16 nov 00
I make a wadding from equal parts of clay, mixed to two parts of sawdust and
mixed the consistency of clay.
A refractory material that works well.
1 part fireclay
1 part ball clay
1 part kaolin
2 parts sawdust
I use the above for my cone packs, for wadding, etc.
bamboo, karen
on 11/16/00 3:18 PM, Fran Schwartz at Franandal@AOL.COM wrote:
> Dear Clayarters,
> I am preparing to do a cone 10 saggar firing, have read archives where
> the suggestion was made to make cookies of clay and place under pieces so
> they don't cement to the gook formed from combustibles in the saggar.
> It was further suggested to make these discs from "wood kiln separator
> wadding".
> What would that be made of? Does anyone have other suggestions for what to
> use?
> Your thoughts would again be greatly appreciated. Thanks, Fran Schwartz
>
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Fran Schwartz on thu 16 nov 00
Dear Clayarters,
I am preparing to do a cone 10 saggar firing, have read archives where
the suggestion was made to make cookies of clay and place under pieces so
they don't cement to the gook formed from combustibles in the saggar.
It was further suggested to make these discs from "wood kiln separator
wadding".
What would that be made of? Does anyone have other suggestions for what to
use?
Your thoughts would again be greatly appreciated. Thanks, Fran Schwartz
mudlark on fri 17 nov 00
You can use your clay body and coat it with Alumina Hydrate. But what works great
and and breaks down after it's fired is a 1to1to1 mix of Kaolin, Alumina Hydrate
and Flour.
Fran Schwartz wrote:
> Dear Clayarters,
> I am preparing to do a cone 10 saggar firing, have read archives where
> the suggestion was made to make cookies of clay and place under pieces so
> they don't cement to the gook formed from combustibles in the saggar.
> It was further suggested to make these discs from "wood kiln separator
> wadding".
> What would that be made of? Does anyone have other suggestions for what to
> use?
> Your thoughts would again be greatly appreciated. Thanks, Fran Schwartz
>
> ______________________________________________________________________________
> 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.
John Baymore on thu 23 nov 00
It was further suggested to make these discs from "wood kiln separato=
r
wadding".
What would that be made of? Does anyone have other suggestions for what =
to
use?
=
In my noborigama, my wadding for this kind of purpose is made of about
three parts fine dry sawdust to one part of A.P Green dry milled fireclay=
,
by volume. Add water "to taste".
For high temperature sagger firing I use a cookie of the claybody I am
using covered in dry EPK in the bottom of the sagger sitting on a 1/2 inc=
h
bed of dry EPK. The dry junk tends to act like kitty litter to "absorb"
the molten junk that accumulates in the sagger, and helps with cleanout o=
f
the sagger after firing. (Watch the dust .) I usually use a kiln was=
h
on the inside lower part of the specially built saggers when they are
thrown or handbuilt too. I use the wadding mix above to act as a "mask"
for certain areas on the sides and tops of the pots.
Best,
....................john
John Baymore
River Bend Pottery
22 Riverbend Way
Wilton, NH 03086 USA
603-654-2752 (s)
800-900-1110 (s)
JBaymore@compuserve.com
John.Baymore@GSD-CO.com
"DATES SET: Earth, Water, and Fire Noborigama Woodfiring Workshop =
August 17-26, 2001"
dan mickey on sun 26 nov 00
ahhh WOOD FIRE WADDING!
one of those fun subjects for me. i think since you are doing a saggar
firing you would want some alumina in that mixture, if you are using any
large amounts of metals or salts then i'd go with half. I have seen and
heard people talk about wadding for the wood kiln and they almost always say
use alumina, why? unless you are throwing in salt or soda i see no reason to
waste expensive alumina in your wadding, the alumina will resist the
atmosphere of the wood but so will fireclay. I suggest using a fireclay and
sawdust mixture. i have experimented with varoius recipes and ways of making
wadding. what i came up with was this: I take a large amount of
sawdust(about 4 gallons) and put it in a mixer, turn it on and add water
till it looks like oatmeal, I then add enough fireclay to turn it into a
thick slip, i next add a lot of blasting sand, some oats(this makes it smell
oh so nice) and just a tad of lizzela clay for iron. i finish the mixture
off to a consistency that i like with more fireclay, this mixture will fall
off easily after being fired.
shane
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