Roger Korn on fri 31 oct 97
I have been reading some books from the UK that refer to T-Material. What is
it? What is a USA-equivalent material?
TIA
Roger
June Perry on sat 1 nov 97
Dear Roger:
Here are my notes on T-Material. I don't believe we have anything like it
here in the states. The substitute formulas list English Ball clays so you
would have to find comparable US ingredients:
T-MATERIAL - is particularly useful as an addition to raku bodies and fires
to a light colour. It appears to contain a lot of molochite and is
available from Potclays Ltd., Brickkiln Lane, Etruria, Stoke-on-Trent, U.K.
and Morgan Refractories Ltd.,
Liverpool Road, Neston, Wirral, Cheshire, U.K. Apparently it is good for
mixing 50-50% with porcelain clay for making larger raku pieces. Y-material
is a cheaper version of the same.
TMATERIAL (SUBSTITUTE) - 1270-1300Degrees Celsius(This one is from Roger
Harris Cranford Barn Pottery, Devon England)
Hypas 71 Ball Clay 5
Porcelain China Clay 2
Molochite(30's to dust) 2
T Material
44 Molochite (200)
55 BBV Ball Clay
1 Bentonite
If a more open body is required use
22 Molochite (200)
22 Molochite (30-80)
This will give a crank type body.
If mixed with a white stoneware body 50/50 it makes the Tmaterial much more
economical and just as good towork with. Here is a recipe for a stoneware you
can mix 50/50 with the T Material.
59.6 Fireclay
39.6 Ball Clay SMD or similar
4.5 Grog 120's
This 50/50 combination can also be used for Raku .
Regards,
June
Steve Mills on sat 1 nov 97
This is a very refractory white clay with a high molochite content made by
Morgan Crucible Co. (They also make Triton Kaowool ceramic fibre). It is much
copied over here by other clay makers. It is a brilliant hand building clay
and very (far too) expensive.
Steve
Bath
UK
Gerlach Baas on sun 2 nov 97
T-material was first used by Hans Coper. It is a specially composed
white clay-body. Even although Coper fired his pots at 1250 degrees C.,
they were not waterproof. He used a special wax to seal the interiors.
T-material makes it possible to do anything you like; it hardly ever
produces cracks or whatever. The recipe of this clay is kept secret as
far as I know. This because of its outstanding characteristics. It also
is a most expensive claybody. At Vingerling (The Netherlands) they
produce a clay that more or less has the same qualities.
For information please contact Keramikos, Haarlem, The Netherlans.
Good luck,
Gerlach Baas
judy motzkin on fri 22 may 98
When I was in Amsterdam recently at the Galerie Babel for their
Global ceramics exhibit, I noted that many of the potters were listing
t-material as medium. It seems to be quite popular in Europe. What
do people know about it? What is it? Thanks.
Judy
jmotzkin@yahoo.com
_________________________________________________________
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GURUSHAKTI on sat 23 may 98
Here is some information I have from various sources and publications, on T
material.
T-MATERIAL - is particularly useful as an addition to raku bodies and fires
to a light colour. It appears to contain a lot of molochite and is available
from Potclays Ltd., Brickkiln Lane, Etruria, Stoke-on-Trent, U.K. and Morgan
Refractories Ltd.,
Liverpool Road, Neston, Wirral, Cheshire, U.K. Apparently it is good for
mixing 50-50% with porcelain clay for making larger raku pieces. Y-material
is a cheaper version of the same.
TMATERIAL (SUBSTITUTE) - 1270-1300Degrees Celsius(This one is from Roger
Harris Cranford Barn Pottery, Devon England)
Hypas 71 Ball Clay 5
Porcelain China Clay 2
Molochite(30's to dust) 2
T Material
44 Molochite (200)
55 BBV Ball Clay
1 Bentonite
If a more open body is required use
22 Molochite (200)
22 Molochite (30-80)
This will give a crank type body.
If mixed with a white stoneware body 50/50 it makes the Tmaterial much more
economical and just as good towork with. Here is a recipe for a stoneware you
can mix 50/50 with the T Material.
59.6 Fireclay
39.6 Ball Clay SMD or similar
4.5 Grog 120's
This 50/50 combination can also be used for Raku .
Sally Robinson from Penzance, England offer this recip for Tmaterial:
Plastic Ball clay 40
China clay 15
Feldspar 6
Flint 6
Molochite 30mesh 33
This fires a bland creamy white color.
Enjoy!
June
jlockett on sat 23 may 98
In message <19980522020936.17926.rocketmail@send1b.yahoomail.com>
judy motzkin wrote:
> ----------------------------Original message----------------------------
> When I was in Amsterdam recently at the Galerie Babel for their
> Global ceramics exhibit, I noted that many of the potters were listing
> t-material as medium. It seems to be quite popular in Europe. What
> do people know about it? What is it? Thanks.
>
> Judy
> jmotzkin@yahoo.com
> _________________________________________________________
> DO YOU YAHOO!?
> Get your free @yahoo.com address at http://mail.yahoo.com
>
Judy
T-material is a clay body which is great for sculpture and handbuilding and
for Raku work. Low shrinkage and good resistance to warping. Low
thermal expansion. Very refractory
regards
John
--
John Lockett
Here in Birmingham U.K.
Visit Midland Potters Assoc. at http://www.ninedud.u-net.com/mpa.htm
Stephen Mills on sun 24 may 98
'T' Material is a highly refractory, white burning clay containing a
large amount of several different grades of molochite. It is made by
Morgan Crucible in the UK and is very b....y expensive. It is also much
imitated (but not matched). The nearest to it is marketed by Scarva
Pottery Supplies in N.Ireland, is called "Earthstone Handbuilding" and
stocked by several suppliers in the UK. I don't know about Europe.
Steve
Bath
UK
In message , judy motzkin writes
>----------------------------Original message----------------------------
> When I was in Amsterdam recently at the Galerie Babel for their
>Global ceramics exhibit, I noted that many of the potters were listing
>t-material as medium. It seems to be quite popular in Europe. What
>do people know about it? What is it? Thanks.
>
>Judy
>jmotzkin@yahoo.com
>_________________________________________________________
>DO YOU YAHOO!?
>Get your free @yahoo.com address at http://mail.yahoo.com
>
--
Steve Mills
Bath
UK
home e-mail: stevemills@mudslinger.demon.co.uk
work e-mail: stevemills@bathpotters.demon.co.uk
own website: http://www.mudslinger.demon.co.uk
BPS website: http://www.bathpotters.demon.co.uk
Randall Moody on sun 30 aug 98
In some of my readings come across the term t-material or crank.
Unfortunately, None of the books give any definition or explanation of what
this is. Any help would be greatly appreciated and also a supplier in the
states.
Paul and c2 on mon 31 aug 98
Crank is a name of a heavily grogged clay from Pottery Craft in England.
June Perry on mon 31 aug 98
T- material is a coarse, light firing, probably high molochite substance sold
in England through Potclays. It is used a lot as an addition to raku bodies in
order to permit the throwing of large forms.
Here's are some substitute formulas I got out of Ceramic Review magazine a
while back:
TMATERIAL (SUBSTITUTE) - 1270-1300Degrees Celsius(This one is from Roger
Harris Cranford Barn Pottery, Devon England)
Hypas 71 Ball Clay 5
Porcelain China Clay 2
Molochite(30's to dust) 2
T Material
44 Molochite (200)
55 BBV Ball Clay
1 Bentonite
If a more open body is required use
22 Molochite (200)
22 Molochite (30-80)
This will give a crank type body.
If mixed with a white stoneware body 50/50 it makes the Tmaterial much more
economical and just as good towork with. Here is a recipe for a stoneware you
can mix 50/50 with the T Material.
59.6 Fireclay
39.6 Ball Clay SMD or similar
4.5 Grog 120's
This 50/50 combination can also be used for Raku .
Sally Robinson from Penzance, England offer this recipe for Tmaterial:
Plastic Ball clay 40
China clay 15
Feldspar 6
Flint 6
Molochite 30mesh 33
This fires a bland creamy white color.
Warm regards,
June
Stephen Mills on tue 1 sep 98
In message , Paul and c2 writes
>----------------------------Original message----------------------------
>Crank is a name of a heavily grogged clay from Pottery Craft in England.
>
This is actually a clay "type" name peculiar to the UK pottery
industry, and is made by a number of clay makers.
Crank Clay was/is used in the making of Saggars.
'T'Material is a very coarse white clay made by Morgan Crucible,
who also manufacture Triton Kaowool Ceramic Fibre. They market
it through various agents in the UK.
Steve
--
Steve Mills
Bath
UK
home e-mail: stevemills@mudslinger.demon.co.uk
work e-mail: stevemills@bathpotters.demon.co.uk
own website: http://www.mudslinger.demon.co.uk
BPS website: http://www.bathpotters.demon.co.uk
Naomi Rieder on wed 25 aug 99
Hope someone will know of a current source for T-material, or will know what
it consists of, other than molchite; my only reference is out of date.
TIA,
Naomi
June Perry on thu 26 aug 99
Dear Naomi:
Here's some info on T-Material I've collected:
T-MATERIAL - is particularly useful as an addition to raku bodies and fires
to a light colour. It appears to contain a lot of molochite and is
available from Potclays Ltd., Brickkiln Lane, Etruria, Stoke-on-Trent, U.K.
and Morgan Refractories Ltd.,
Liverpool Road, Neston, Wirral, Cheshire, U.K. Apparently it is good for
mixing 50-50% with porcelain clay for making larger raku pieces. Y-material
is a cheaper version of the same.
TMATERIAL (SUBSTITUTE) - 1270-1300Degrees Celsius(This one is from Roger
Harris Cranford Barn Pottery, Devon England)
Hypas 71 Ball Clay 5
Porcelain China Clay 2
Molochite(30's to dust) 2
T Material
44 Molochite (200)
55 BBV Ball Clay
1 Bentonite
If a more open body is required use
22 Molochite (200)
22 Molochite (30-80)
This will give a crank type body.
If mixed with a white stoneware body 50/50 it makes the Tmaterial much more
economical and just as good towork with. Here is a recipe for a stoneware you
can mix 50/50 with the T Material.
59.6 Fireclay
39.6 Ball Clay SMD or similar
4.5 Grog 120's
Warm regards,
June
Lori Pierce on thu 26 aug 99
Hi there...sorry I deleted your post before I got your name;The source I
have for T-Material is in England, Potsclays Limited, Brickkiln Lane,
Etruria, Stoke-on-Trent,ST4 7BP.England. The E-mail:
potclays@btinternet.com; the catalogue #1161T. Hope this is what you wanted.
Lori in New Port Richey, Fl.
Naomi Rieder on tue 14 sep 99
I would like to know if anyone in ClayArt would be interested in using/trying
T-material, the clay that Lucy Rie & Hans Coper used, and which is still
being made in England. The manufacturer will only ship a container of it, so
if there's enough interest, I'll get more info, ie., cost, from the co. that
would import it.
TIA,
Naomi
Jim and Marge Wade on mon 26 feb 01
Could anyone tell me what T-material is? I've read about it in several books
on pit/sawdust firing where the clay body used is made up of 50% porcelain
and 50% T-material. The potters mentioned that use it are from the UK. One
book said that it is white stoneware with molochite added, but no specifics.
I've inquired with several potters as well as my local pottery supply
company, but no one is familiar with it.
Any information would be greatly appreciated!
Marge Wade
clayartbc on mon 26 feb 01
If you are very rich, T-Material can be purchase from Potclays =
potclays@btinternet.com. It is fantastic, well worth the price if you =
are making large pieces or Raku. Never fails. I have tried adding lots =
of molachite to B-mix, but its not as good.
Rosemarie Greedy
Studio Papillon
tel/fax 250 762 5837
clayartbc@look.ca
www.clayartbc.com
Richard Jeffery on mon 26 feb 01
In case Steve isn't looking, here is his answer the last time someone asked.
"This is a very refractory white clay with a high molochite content made by
Morgan Crucible Co. (They also make Triton Kaowool ceramic fibre). It is
much
copied over here by other clay makers. It is a brilliant hand building clay
and very (far too) expensive.
Steve
Bath
UK"
As someone who buys the stuff from him, I would have to say it is bomb
proof, and a superb white when fired.... And yes, mixed with porcelain
works very well. I don't throw, but I wouldn't want to try with
T-material - it's very stiff, and full of very sharp grog which would take
flesh from bone. Some do throw it though - the porcelain mix helps.
Richard
Bournemouth UK
www.TheEleventhHour.co.uk
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of Jim and Marge Wade
Sent: 26 February 2001 15:57
To: CLAYART@LSV.CERAMICS.ORG
Subject: T-Material
Could anyone tell me what T-material is? I've read about it in several books
on pit/sawdust firing where the clay body used is made up of 50% porcelain
and 50% T-material. The potters mentioned that use it are from the UK. One
book said that it is white stoneware with molochite added, but no specifics.
I've inquired with several potters as well as my local pottery supply
company, but no one is familiar with it.
Any information would be greatly appreciated!
Marge Wade
____________________________________________________________________________
__
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Steve Mills on tue 27 feb 01
'T'Material is a highly refractory white burning clay with a very high,
and varied Molochite content. It is often copied, but never really
equalled, though I must admit I personally prefer some of the
substitutes on the market. It is manufactured in the UK by the Morgan
crucible company. I suspect the clay used is not a million miles away
from their main crucible making body, it has that kind of strength, so a
similar source should theoretically be available to potters et al
elsewhere. Various attempts have been made to analyse it, particularly
the Molochites in it. but I am informed there appears to be no
consistency in the results (!). The one constant is its ridiculously
high price which makes purchasing it in the UK painful, and anywhere
else prohibitive!
Steve
Bath
UK
In message , Jim and Marge Wade writes
>Could anyone tell me what T-material is? I've read about it in several bo=
>oks
>on pit/sawdust firing where the clay body used is made up of 50% porcelai=
>n
>and 50% T-material. The potters mentioned that use it are from the UK. O=
>ne
>book said that it is white stoneware with molochite added, but no specifi=
>cs.
>I've inquired with several potters as well as my local pottery supply
>company, but no one is familiar with it.
>Any information would be greatly appreciated!
>
>Marge Wade
--
Steve Mills
Bath
UK
Mimi Werner on tue 27 feb 01
Dear Rosemary, Did I miss a discussion on T-material..??/ I have been
seeing it's used in smoke fired work but haven't been able ti figure out
what it is. Is it liquid? Thanks for your help...Mimi
>From: clayartbc
>Reply-To: Ceramic Arts Discussion List
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: T-Material
>Date: Mon, 26 Feb 2001 09:37:32 -0800
>
>If you are very rich, T-Material can be purchase from Potclays
>potclays@btinternet.com. It is fantastic, well worth the price if you are
>making large pieces or Raku. Never fails. I have tried adding lots of
>molachite to B-mix, but its not as good.
>Rosemarie Greedy
>Studio Papillon
>tel/fax 250 762 5837
>clayartbc@look.ca
>www.clayartbc.com
>
>______________________________________________________________________________
>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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Ababi on fri 10 may 02
Hello Nancy. Do
you know how many recipes I find calling for T material, or B
material?
Use the best Raku claybody ( that is the T material in the U.K.) instead. Or
try what I try in everything I do, make a paperclay, it might give you more
black, certainly, it makes the regular claybody thermal shock resist
Ababi
in Shiny Israel, the peaceful forgotten little island
----- Original Message -----
From: "Nancy Galland"
To:
Sent: Friday, May 10, 2002 01:41
Subject: T-Material
> I have read accounts of the use of "T-material" in sawdust or smoke
> firing, ususally as an additive to porcelain, but I have not been able to
> find much information beyond a skimpy description that it is molochite and
> stoneware. The clayart archives can find no match. Can someone tell me:
> 1. What are the proportions of molochite and stoneware?
> 2. What affects is it used for?
> 3.What percentage is added to the porcelain body? Is it added to wet,
mixed
> porcelain?
>
> I am doing extensive tests on smoke firing porcelain and would much
> appreciate some guidance on this.
>
>
____________________________________________________________________________
__
> 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.
Richard Jeffery on fri 10 may 02
Hi Nancy
didn't think you could get T material over there. There should be material
in the archives - I know Steve Mills has posted descriptions in the past.
I have no idea about proportions - that has always seemed to be a trade
secret. not sure what else is in there, but my understanding is that is was
originally formulated for the metallurgy industry to make crucibles.
The effect is simple - it's almost bomb proof - incredibly strong, and
therefore well suited mechanically to raku and the like. Good for sculpture
and hand building - it's so stiff out of the bag you need to wedge it with a
lump hammer. It also contains some extremely aggressive grog, so throwing
would be perilous, although I'm sure someone out there does it.
mixing it with porcelain makes it more workable - I wedge 50:50 together by
mass or weight straight from the bags.
last but not least, it's a very clean white when biscuited - helps the
colours sing, although that might be my imagination.
Richard Jeffery
Web Design and Photography
www.theeleventhweb.co.uk
Bournemouth UK
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of Nancy Galland
Sent: 10 May 2002 12:42
To: CLAYART@LSV.CERAMICS.ORG
Subject: T-Material
I have read accounts of the use of "T-material" in sawdust or smoke
firing, ususally as an additive to porcelain, but I have not been able to
find much information beyond a skimpy description that it is molochite and
stoneware. The clayart archives can find no match. Can someone tell me:
1. What are the proportions of molochite and stoneware?
2. What affects is it used for?
3.What percentage is added to the porcelain body? Is it added to wet, mixed
porcelain?
I am doing extensive tests on smoke firing porcelain and would much
appreciate some guidance on this.
____________________________________________________________________________
__
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.
Janet Kaiser on fri 10 may 02
The reason you will not find much information, is because the recipe
is a closely guarded "secret". As you will see from the archives,
there has been a lot of discussion as to what could be in T-material.
Derek Ems reckons it was developed from the clay used to brick up
kilns for firing in the old potteries at Stoke-on-Trent. Presumably,
once they went out of use, the producers decided to rename it and
release it onto the up and coming "Studio Potter" market. Tests
revealed that it probably contained "a cellulose binding material" as
well as a clay mix.
It came into fashion here, because although it is expensive, one could
mix it with porcelain (even more expensive) and reduce the problems
associated with porcelain that beginners always suffer. It makes
porcelain more "user friendly".
It looks like a matt white stoneware, but I personally never liked the
"feel" of it, being more akin to short stoneware IMHO. Steve Mills
will follow-up on how good it is! Won't you Steve? But then he has
more experience than me and he sells it at Bath Potters!
I only found it useful for work which involves applied sprigs and
decoration, because it was more malleable than porcelain and does not
crack as much through "over" handling. Susan Bruce uses it a lot... At
least she did on the very decorative handbuilt pieces she exhibited
here about five years ago. Judging from recent images of her work, she
has changed styles since.
The colour of fired T-Material is snow white, which some potters
really like especially if they are using stains and oxides. Acts like
a white canvas... Hummm... Personally speaking, I would say it is
"dead white" like chalk. No life in it!
Janet Kaiser
The Chapel of Art / Capel Celfyddyd
Home of The International Potters' Path
8 Marine Crescent : Criccieth : GB-Wales
URL: http://www.the-coa.org.uk
postbox@the-coa.org.uk
Nancy Galland on fri 10 may 02
I have read accounts of the use of "T-material" in sawdust or smoke
firing, ususally as an additive to porcelain, but I have not been able to
find much information beyond a skimpy description that it is molochite and
stoneware. The clayart archives can find no match. Can someone tell me:
1. What are the proportions of molochite and stoneware?
2. What affects is it used for?
3.What percentage is added to the porcelain body? Is it added to wet, mixed
porcelain?
I am doing extensive tests on smoke firing porcelain and would much
appreciate some guidance on this.
Russel Fouts on sat 11 may 02
Richard,
> It also contains some extremely aggressive grog, so throwing would be
perilous, although I'm sure someone out there does it. mixing it with
porcelain makes it more workable - I wedge 50:50 together by mass or weight
straight from the bags. last but not least, it's a very clean white when
biscuited - helps the colours sing, although that might be my imagination. <
You're right, T-Material is a trade secret but I've seen some receipes
that approximate it. Pretty sure there must be something in the
archives.
I'm not sure but the "grog" could be the grade of Molochite added. I did
a throwing workshop with John Colbeck (great teacher) at Pietro
Maddalena's (http://www.pietro.net) a few summers ago.
It was two weeks. The first week we threw the stoneware clay that Pietro
was using at the time, A La Bourne clay that threw great but was
absolutely filthy. Our hands were stained black from it.
The second week we threw his raku clay which contains a lot of
Molochite. It was really abrasive, cleaned our hands right up. ;-)
However, the abrasive was very fine. I didn't find it "hazardous" to
through at all.
Russel
-
Russel Fouts
Mes Potes & Mes Pots
Brussels, Belgium
Tel: +32 2 223 02 75
Mobile: +32 476 55 38 75
Http://www.mypots.com
http://www.Japan-Net.ne.jp/~iwcat
"There is a theory which states that
if ever anyone discovers exactly what
the universe is for and why it's here,
it will instantly disappear and be
replaced by something even more bizzarly
inexplicable."
"There is another theory which states
that this has already happened!"
Douglas Adams' The Hitch Hiker's Guide to the Galaxy
Richard Jeffery on sat 11 may 02
i'd better learn to throw, then...
damn - another excuse gone out the window...
things very fraught here - just working up to Dorset Art Weeks 2002. 2
weeks to go, nothing finished. i might just be providing the open
studio/excitable artist experience, and we'll just have a jewellery
exhibition. shame it's all so small.
still, i noticed your site came up when i went through some web logs
recently. Thought you might like to take another look at the web site -
www.dorsetartweek.com
that's also [one of] the reasons i don't have anything finished. sloth and
daydreaming probably account for the others...
cheers
Richard
Richard Jeffery
Web Design and Photography
www.theeleventhweb.co.uk
Bournemouth UK
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of Russel Fouts
Sent: 11 May 2002 07:35
To: CLAYART@LSV.CERAMICS.ORG
Subject: T-Material
Richard,
> It also contains some extremely aggressive grog, so throwing would be
perilous, although I'm sure someone out there does it. mixing it with
porcelain makes it more workable - I wedge 50:50 together by mass or weight
straight from the bags. last but not least, it's a very clean white when
biscuited - helps the colours sing, although that might be my imagination. <
You're right, T-Material is a trade secret but I've seen some receipes
that approximate it. Pretty sure there must be something in the
archives.
I'm not sure but the "grog" could be the grade of Molochite added. I did
a throwing workshop with John Colbeck (great teacher) at Pietro
Maddalena's (http://www.pietro.net) a few summers ago.
It was two weeks. The first week we threw the stoneware clay that Pietro
was using at the time, A La Bourne clay that threw great but was
absolutely filthy. Our hands were stained black from it.
The second week we threw his raku clay which contains a lot of
Molochite. It was really abrasive, cleaned our hands right up. ;-)
However, the abrasive was very fine. I didn't find it "hazardous" to
through at all.
Russel
-
Russel Fouts
Mes Potes & Mes Pots
Brussels, Belgium
Tel: +32 2 223 02 75
Mobile: +32 476 55 38 75
Http://www.mypots.com
http://www.Japan-Net.ne.jp/~iwcat
"There is a theory which states that
if ever anyone discovers exactly what
the universe is for and why it's here,
it will instantly disappear and be
replaced by something even more bizzarly
inexplicable."
"There is another theory which states
that this has already happened!"
Douglas Adams' The Hitch Hiker's Guide to the Galaxy
____________________________________________________________________________
__
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.
Russel Fouts on sun 12 may 02
Richard,
>> that's also [one of] the reasons i don't have anything finished. sloth
and daydreaming probably account for the others... <<
The daydreaming is part of your job description as an artist (recent
thread) so that's ok. ;-)
Russel
--
Russel Fouts
Mes Potes & Mes Pots
Brussels, Belgium
Tel: +32 2 223 02 75
Mobile: +32 476 55 38 75
Email: Russel.Fouts@Skynet.be
Http://www.mypots.com
http://www.Japan-Net.ne.jp/~iwcat
"There is a theory which states that
if ever anyone discovers exactly what
the universe is for and why it's here,
it will instantly disappear and be
replaced by something even more bizzarly
inexplicable."
"There is another theory which states
that this has already happened!"
Douglas Adams' The Hitch Hiker's Guide to the Galaxy
Ababi on sun 12 may 02
Hello Russel
Did you try compare the Dutch Vingerling's K-129, it is considered
here to be an excellent claybody. It is highly groged I think 40% yet
very plastic and pleasant to use.
Ababi
---------- Original Message ----------
>Richard,
>> It also contains some extremely aggressive grog, so throwing would be
>perilous, although I'm sure someone out there does it. mixing it with
>porcelain makes it more workable - I wedge 50:50 together by mass or
>weight straight from the bags. last but not
> least, it's a very clean white when biscuited - helps the colours
>sing, although that might be my imagination. <
>You're right, T-Material is a trade secret but I've seen some receipes
>that approximate it. Pretty sure there must be something in the
>archives.
>I'm not sure but the "grog" could be the grade of Molochite added. I did
>a throwing workshop with John Colbeck (great teacher) at Pietro
>Maddalena's (http://www.pietro.net) a few summers ago.
>It was two weeks. The first week we threw the stoneware clay that Pietro
>was using at the time, A La Bourne clay that threw great but was
>absolutely filthy. Our hands were stained black from it.
>The second week we threw his raku clay which contains a lot of
>Molochite. It was really abrasive, cleaned our hands right up. ;-)
>However, the abrasive was very fine. I didn't find it "hazardous" to
>through at all.
>Russel
>-
> Russel Fouts
> Mes Potes & Mes Pots
> Brussels, Belgium
> Tel: +32 2 223 02 75
> Mobile: +32 476 55 38 75
> Http://www.mypots.com
> http://www.Japan-Net.ne.jp/~iwcat
> "There is a theory which states that
> if ever anyone discovers exactly what
> the universe is for and why it's here,
> it will instantly disappear and be
> replaced by something even more bizzarly
> inexplicable."
> "There is another theory which states
> that this has already happened!"
> Douglas Adams' The Hitch Hiker's Guide to the Galaxy
>________________________________________________________________________
>______
>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.
Russel Fouts on mon 13 may 02
Ababi
>> Did you try compare the Dutch Vingerling's K-129, it is considered here
to be an excellent claybody. It is highly groged I think 40% yet very
plastic and pleasant to use. <<
Actually, it wasn't me looking for t-material.
However, I think I'm already using the Vingerling's. Mine is mauve in
the raw state and at aobut 1200c fires to a nice toasty brown in
oxidation. And you're right, it REALLY heavily grogged. I don't think I
would try to throw that without chain-mail gloves. ;-)
I use it for making hump and slump molds, burnishes nicely too. AND you
can fire completely solid stuff made with it (ie my hump molds) pretty
easilly, no cracking and really strong when bisqued to 500c
If it gets too hard (I had a bunch of bags with holes that I didn't see)
wrap it in damp towels, put it back in a bag, seal it and leave it
overnight. Nice and soft again. Water must travel through it really
well.
Russel
--
Russel Fouts
Mes Potes & Mes Pots
Brussels, Belgium
Tel: +32 2 223 02 75
Mobile: +32 476 55 38 75
Email: Russel.Fouts@Skynet.be
Http://www.mypots.com
http://www.Japan-Net.ne.jp/~iwcat
"There is a theory which states that
if ever anyone discovers exactly what
the universe is for and why it's here,
it will instantly disappear and be
replaced by something even more bizzarly
inexplicable."
"There is another theory which states
that this has already happened!"
Douglas Adams' The Hitch Hiker's Guide to the Galaxy
Steve Mills on tue 14 may 02
Got to this late as I've been away.
No Janet I don't like T Material. I sell it because some customers will
only use it. I prefer Scarva Earthstone E/S40; more plastic, consistent,
and (for me) friendly. Does the same job at half the price. A batch by
batch analysis by one of the major UK clay makers revealed a remarkable
inconsistency in Molochite quantities and grades in T Material!!!
Steve
Bath
UK
In message , Janet Kaiser
writes
>The reason you will not find much information, is because the recipe
>is a closely guarded "secret". As you will see from the archives,
>there has been a lot of discussion as to what could be in T-material.
>Derek Ems reckons it was developed from the clay used to brick up
>kilns for firing in the old potteries at Stoke-on-Trent. Presumably,
>once they went out of use, the producers decided to rename it and
>release it onto the up and coming "Studio Potter" market. Tests
>revealed that it probably contained "a cellulose binding material" as
>well as a clay mix.
>
>It came into fashion here, because although it is expensive, one could
>mix it with porcelain (even more expensive) and reduce the problems
>associated with porcelain that beginners always suffer. It makes
>porcelain more "user friendly".
>
>It looks like a matt white stoneware, but I personally never liked the
>"feel" of it, being more akin to short stoneware IMHO. Steve Mills
>will follow-up on how good it is! Won't you Steve? But then he has
>more experience than me and he sells it at Bath Potters!
>
>I only found it useful for work which involves applied sprigs and
>decoration, because it was more malleable than porcelain and does not
>crack as much through "over" handling. Susan Bruce uses it a lot... At
>least she did on the very decorative handbuilt pieces she exhibited
>here about five years ago. Judging from recent images of her work, she
>has changed styles since.
>
>The colour of fired T-Material is snow white, which some potters
>really like especially if they are using stains and oxides. Acts like
>a white canvas... Hummm... Personally speaking, I would say it is
>"dead white" like chalk. No life in it!
>
>Janet Kaiser
>The Chapel of Art / Capel Celfyddyd
>Home of The International Potters' Path
>8 Marine Crescent : Criccieth : GB-Wales
>URL: http://www.the-coa.org.uk
>postbox@the-coa.org.uk
--
Steve Mills
Bath
UK
Leland G. Hall on wed 21 aug 02
Someone a week or so ago was asking about T-material and the possibility of
a US equivalant. If responses were posted I missed them. I am curious
about this too. Thanks.
Leland Hall
Before The Wheel Enterprises
Alistair Gillies on wed 21 aug 02
Hi,
My 'Potclays' catalogue [Stoke-on Trent supplier] describes T material
as
'Extremely resilient and tolerant off-white body. Superb for large
sculptures and handbuilding use. Well suited for high quality Raku
pieces. Low thermal expansion. Low shrinkage and good warp resistance.
Very refractory.'
However it is over 45.00 of our English pounds for 25kg
One can now get imitations at about half the price - no idea about US
equivalent
All the best,
Alistair Gillies
Shropshire, England
In message <3D6120F400001F8F@mercury.acers>, Leland G. Hall
writes
>Someone a week or so ago was asking about T-material and the possibility of
>a US equivalant. If responses were posted I missed them. I am curious
>about this too. Thanks.
>Leland Hall
>Before The Wheel Enterprises
Mark Potter on fri 23 aug 02
Steve et al,
I'm very curious about this stuff called T-Material. Where does one get
it? Is there a generic name for it, ie. is that the only name it has?
Mark Potter
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG] On
Behalf Of Steve Mills
Sent: Thursday, August 22, 2002 7:03 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: T-material
Also it is manufactured by Morgan Crucible (parent company make
Kaowool), and strongly resembles the material they make Crucibles out
of. It has a pretty high quantity of Molochite in a wide variety of
sizes. The funny part is that every time someone analyses it with a view
to copying it the results come out different from the previous analysis.
It's almost like they use any left over crucible clay and bung in random
amounts of Molochite on the *handful of this or that* principle without
sticking to a recipe. It's still amazing stuff to work with.
Steve
Bath
UK
In message , Alistair Gillies writes
>Hi,
>
>My 'Potclays' catalogue [Stoke-on Trent supplier] describes T material
>as
>
>'Extremely resilient and tolerant off-white body. Superb for large
>sculptures and handbuilding use. Well suited for high quality Raku
>pieces. Low thermal expansion. Low shrinkage and good warp resistance.
>Very refractory.'
>
>However it is over 45.00 of our English pounds for 25kg
>
>One can now get imitations at about half the price - no idea about US
>equivalent
>
>All the best,
>
>
>Alistair Gillies
>Shropshire, England
>
>
>
>In message <3D6120F400001F8F@mercury.acers>, Leland G. Hall
> writes
>>Someone a week or so ago was asking about T-material and the
possibility=
> of
>>a US equivalant. If responses were posted I missed them. I am
curious
>>about this too. Thanks.
>>Leland Hall
>>Before The Wheel Enterprises
--
Steve Mills
Bath
UK
________________________________________________________________________
______
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.
Steve Mills on fri 23 aug 02
Also it is manufactured by Morgan Crucible (parent company make
Kaowool), and strongly resembles the material they make Crucibles out
of. It has a pretty high quantity of Molochite in a wide variety of
sizes. The funny part is that every time someone analyses it with a view
to copying it the results come out different from the previous analysis.
It's almost like they use any left over crucible clay and bung in random
amounts of Molochite on the *handful of this or that* principle without
sticking to a recipe. It's still amazing stuff to work with.
Steve
Bath
UK
In message , Alistair Gillies writes
>Hi,
>
>My 'Potclays' catalogue [Stoke-on Trent supplier] describes T material
>as
>
>'Extremely resilient and tolerant off-white body. Superb for large
>sculptures and handbuilding use. Well suited for high quality Raku
>pieces. Low thermal expansion. Low shrinkage and good warp resistance.
>Very refractory.'
>
>However it is over 45.00 of our English pounds for 25kg
>
>One can now get imitations at about half the price - no idea about US
>equivalent
>
>All the best,
>
>
>Alistair Gillies
>Shropshire, England
>
>
>
>In message <3D6120F400001F8F@mercury.acers>, Leland G. Hall
> writes
>>Someone a week or so ago was asking about T-material and the possibility=
> of
>>a US equivalant. If responses were posted I missed them. I am curious
>>about this too. Thanks.
>>Leland Hall
>>Before The Wheel Enterprises
--
Steve Mills
Bath
UK
Steve Mills on sat 24 aug 02
T Material is the only name it has, and it is manufactured in the UK,
but the company is world wide. According to their website ermalceramics.com> they have a USA HQ in Atlanta. It might be worth
contacting them to see if anyone on your side of the pond stocks it. In
the UK they only sell it through Agents.
Steve
Bath
UK
In message , Mark Potter writes
>Steve et al,
>
>I'm very curious about this stuff called T-Material. Where does one get
>it? Is there a generic name for it, ie. is that the only name it has?
>
>Mark Potter
>
>-----Original Message-----
>From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG] On
>Behalf Of Steve Mills
>Sent: Thursday, August 22, 2002 7:03 PM
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: Re: T-material
>
>Also it is manufactured by Morgan Crucible (parent company make
>Kaowool), and strongly resembles the material they make Crucibles out
>of. It has a pretty high quantity of Molochite in a wide variety of
>sizes. The funny part is that every time someone analyses it with a view
>to copying it the results come out different from the previous analysis.
>It's almost like they use any left over crucible clay and bung in random
>amounts of Molochite on the *handful of this or that* principle without
>sticking to a recipe. It's still amazing stuff to work with.
>
>Steve
>Bath
>UK
>
>
>In message , Alistair Gillies writes
>>Hi,
>>
>>My 'Potclays' catalogue [Stoke-on Trent supplier] describes T material
>>as
>>
>>'Extremely resilient and tolerant off-white body. Superb for large
>>sculptures and handbuilding use. Well suited for high quality Raku
>>pieces. Low thermal expansion. Low shrinkage and good warp resistance.
>>Very refractory.'
>>
>>However it is over 45.00 of our English pounds for 25kg
>>
>>One can now get imitations at about half the price - no idea about US
>>equivalent
>>
>>All the best,
>>
>>
>>Alistair Gillies
>>Shropshire, England
>>
>>
>>
>>In message <3D6120F400001F8F@mercury.acers>, Leland G. Hall
>> writes
>>>Someone a week or so ago was asking about T-material and the
>possibility=3D
>> of
>>>a US equivalant. If responses were posted I missed them. I am
>curious
>>>about this too. Thanks.
>>>Leland Hall
>>>Before The Wheel Enterprises
>
>--
>Steve Mills
>Bath
>UK
>
>________________________________________________________________________
>______
>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.
--
Steve Mills
Bath
UK
iandol on sun 25 aug 02
Dear Steve Mills,
I have just gleaned the following information from Potterycrafts =
Catalogue.
" 'T' Material.=20
Matures between 1250=B0C-1300=B0C (Cone 7-10)
This exceptionally high quality clay is well known o many of the world's =
foremost ceramic artists. It is a white coarse body with remarkable wet =
strength which enables it to be used for large sculptures pieces and =
small delicate work. It has a wide firing range and very good glaze =
acceptance. It is highly recommended for Raku, where the grog content =
gives it strength, and the whiteness gives superb colour response. =
Plastic Clay p1209"
There is an illustration of what seems to be a light cream bisque =
sample. "Coarse body" and "small delicate" seem to be contradictory.
This may interest those who are inquisitive about the stuff.
Best regards,
Ivor Lewis.
Steve Mills on mon 26 aug 02
In message <003501c24cc2$a60f9280$7d7d38cb@oemcomputer>, iandol
writes
>
> Dear Steve Mills,
>
> I have just gleaned the following information from Potterycrafts
> Catalogue.
>
> " 'T' Material.
>
> Matures between 1250°C-1300°C (Cone 7-10)
>
> This exceptionally high quality clay is well known o many of the
> world's foremost ceramic artists. It is a white coarse body with
> remarkable wet strength which enables it to be used for large
> sculptures pieces and small delicate work. It has a wide firing
> range and very good glaze acceptance. It is highly recommended for
> Raku, where the grog content gives it strength, and the whiteness
> gives superb colour response. Plastic Clay p1209"
>
> There is an illustration of what seems to be a light cream bisque
> sample. "Coarse body" and "small delicate" seem to be
> contradictory.
I agree; I would edit out *delicate* for a start, but then what you are
quoting is after all sales blurb. It is a white body, but does not *grey
up* in reduction as much as some other white bodies in my experience.
Steve
>
> This may interest those who are inquisitive about the stuff.
>
> Best regards,
>
> Ivor Lewis.
--
Steve Mills
Bath
UK
Richard Jeffery on mon 26 aug 02
and mixing it 50:50 with porcelain works too - makes it cheaper, and
somewhat easier to do the fine delicate stuff.
ps - it does fire white, not cream.
Richard
Bournemouth UK
www.TheEleventhHour.co.uk
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of iandol
Sent: 25 August 2002 06:59
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: T-material
Dear Steve Mills,
I have just gleaned the following information from Potterycrafts Catalogue.
" 'T' Material.
Matures between 1250°C-1300°C (Cone 7-10)
This exceptionally high quality clay is well known o many of the world's
foremost ceramic artists. It is a white coarse body with remarkable wet
strength which enables it to be used for large sculptures pieces and small
delicate work. It has a wide firing range and very good glaze acceptance. It
is highly recommended for Raku, where the grog content gives it strength,
and the whiteness gives superb colour response. Plastic Clay p1209"
There is an illustration of what seems to be a light cream bisque sample.
"Coarse body" and "small delicate" seem to be contradictory.
This may interest those who are inquisitive about the stuff.
Best regards,
Ivor Lewis.
____________________________________________________________________________
__
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.
Alan D. Scott on mon 26 aug 02
I've contacted Thermal Ceramics here in the USA. They have told me that
they have a product called "T-material" and are sending me info on it. I'll
post the info here as soon as I get it.
Alan Scott
The 3rd Cup Clayworks
Parker, AZ
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of iandol
Sent: Saturday, August 24, 2002 10:59 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: T-material
Dear Steve Mills,
I have just gleaned the following information from Potterycrafts Catalogue.
" 'T' Material.
Matures between 1250°C-1300°C (Cone 7-10)
This exceptionally high quality clay is well known o many of the world's
foremost ceramic artists. It is a white coarse body with remarkable wet
strength which enables it to be used for large sculptures pieces and small
delicate work. It has a wide firing range and very good glaze acceptance. It
is highly recommended for Raku, where the grog content gives it strength,
and the whiteness gives superb colour response. Plastic Clay p1209"
There is an illustration of what seems to be a light cream bisque sample.
"Coarse body" and "small delicate" seem to be contradictory.
This may interest those who are inquisitive about the stuff.
Best regards,
Ivor Lewis.
____________________________________________________________________________
__
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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