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cone 6 reduction clay body

updated sun 12 jan 03

 

Ron Roy on fri 10 jan 03


It is only certain Clay bodies - designed for cone 6 - that will not do
well in reduction - those containing more then a little iron.

It is because reduced iron fluxes more.

All the white or near white bodies should do just fine including c6 porcelains.

If you wanted a darker body - Tuckers has some for cone 8 - some of them
might work well at cone 6 in reduction - make sure you check the absorbency
before you make any assumptions.

Mixing a cone 10 reduction body with an iron bearing cone 6 body might be
worth experimenting with - 50/50, 25/75 and 75/25% for starters - do the
absorbency tests to see if you have the proper - keep the absorbency about
2% for stoneware.

Remember - firing a clean bisque is very important when firing darker
bodies in reduction.

I'm signing off ClayArt for a week starting tomorrow (Sat.) - I'll be out
of town for a week - if anyone has questions about this I'll answer when I
get back - after Jan 20.

Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513

a3 on fri 10 jan 03


I have been firing a propane kiln to cone 9-10 reduction for thirty =
years. I used all the same bodies for electric firings on occasion. =
Now I want to fire at cone 6 reduction. I am having trouble finding =
suitable bodies. In Canada Plainsman Clay advises me that the cone 6 =
clays are not suitable. I did one firing using 370, and 340.The 370 =
had too many cracks ,on lids for example. The 340 was an unpleasant =
colour in reduction. Are there any good reduction 6 bodies out there =
available in Canada? Thanks...I'd appreciate any info.

Alice

Anthony Wolking on fri 10 jan 03


Alice,

I have fired Laguna Cone 5 B-mix to cone 6 without a problem. It goes a
light buff in reduction in my experience. If you have further questions on
applications and availability I would have to refer you to Laguana Clay Co.

Anthony Wolking




>From: a3
>Reply-To: Clayart
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: Cone 6 reduction clay body
>Date: Fri, 10 Jan 2003 09:18:09 -0700
>
>I have been firing a propane kiln to cone 9-10 reduction for thirty years.
>I used all the same bodies for electric firings on occasion. Now I want to
>fire at cone 6 reduction. I am having trouble finding suitable bodies. In
>Canada Plainsman Clay advises me that the cone 6 clays are not suitable. I
>did one firing using 370, and 340.The 370 had too many cracks ,on lids
>for example. The 340 was an unpleasant colour in reduction. Are there any
>good reduction 6 bodies out there available in Canada? Thanks...I'd
>appreciate any info.
>
>Alice
>
>______________________________________________________________________________
>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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Edouard Bastarache on fri 10 jan 03


Try Tuckers in Toronto.


Later,



"Ils sont fous ces Quebecois"
Edouard Bastarache
Irreductible Quebecois
Indomitable Quebeker
Sorel-Tracy
Quebec
edouardb@sorel-tracy.qc.ca
http://sorel-tracy.qc.ca/~edouardb/
http://perso.wanadoo.fr/smart2000/index.htm

----- Original Message -----
From: a3
To:
Sent: Friday, January 10, 2003 11:18 AM
Subject: Cone 6 reduction clay body


I have been firing a propane kiln to cone 9-10 reduction for thirty years.
I used all the same bodies for electric firings on occasion. Now I want to
fire at cone 6 reduction. I am having trouble finding suitable bodies. In
Canada Plainsman Clay advises me that the cone 6 clays are not suitable. I
did one firing using 370, and 340.The 370 had too many cracks ,on lids for
example. The 340 was an unpleasant colour in reduction. Are there any good
reduction 6 bodies out there available in Canada? Thanks...I'd appreciate
any info.

Alice

____________________________________________________________________________
__
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.

Liz Willoughby on sat 11 jan 03


Hello Alice,
Tuckers Pottery Supplies in Richmond Hill, Ontario. phone 800-304-6185,
Ron Roy is the clay consultant there and has formulated many or all
of their clay bodies. They have cone 6 stoneware and porcelain clay
bodies. Liz

> Are there any good reduction 6 bodies out there available in
>Canada? Thanks...I'd appreciate any info.
>
>Alice

Liz Willoughby
RR 1
2903 Shelter Valley Rd.
Grafton, On.
Canada
K0K 2G0
e-mail lizwill@phc.igs.net

BOBBIE LISTERMAN on sat 11 jan 03


a3 - I have had good results in cone 6 reduction with Desert Buff from
Highwater Clay in Asheville, N.C. They also make a speckled Desert Buff
that works well. Also Standard's 119 has worked for me, but test
absorbtion. I have had problems at the low end of clay bodies that say they
have a long range. I am really enjoying cone 6 reduction and a new color
range of glazes at this temperature. Good luck and let me know if you find
other bodies. Oh - the worst results I have had involve bodies high in
manganese and iron which so many cone 6 bodies for electric contain. They
bloat and generally get over fluxed from the iron. Enjoy - Bobbie

-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG]On Behalf Of a3
Sent: Friday, January 10, 2003 8:18 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Cone 6 reduction clay body


I have been firing a propane kiln to cone 9-10 reduction for thirty years.
I used all the same bodies for electric firings on occasion. Now I want to
fire at cone 6 reduction. I am having trouble finding suitable bodies. In
Canada Plainsman Clay advises me that the cone 6 clays are not suitable. I
did one firing using 370, and 340.The 370 had too many cracks ,on lids for
example. The 340 was an unpleasant colour in reduction. Are there any good
reduction 6 bodies out there available in Canada? Thanks...I'd appreciate
any info.

Alice

____________________________________________________________________________
__
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.

Dan Hill on sat 11 jan 03


Hi Alice
I use Tuckers Mid White stoneware, Tuckers 6-50 porcelain and Pottery Supply
House 910 porcelain. I fire ^6 reduction in a soda vapour glaze kiln with
good results.
Dan Hill
Eastern Ontario, Canada
----- Original Message -----
From: a3
To:
Sent: Friday, January 10, 2003 11:18 AM
Subject: Cone 6 reduction clay body


I have been firing a propane kiln to cone 9-10 reduction for thirty years.
I used all the same bodies for electric firings on occasion. Now I want to
fire at cone 6 reduction. I am having trouble finding suitable bodies. In
Canada Plainsman Clay advises me that the cone 6 clays are not suitable. I
did one firing using 370, and 340.The 370 had too many cracks ,on lids for
example. The 340 was an unpleasant colour in reduction. Are there any good
reduction 6 bodies out there available in Canada? Thanks...I'd appreciate
any info.

Alice

____________________________________________________________________________
__
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.