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shopping list? glaze / slip tests

updated sat 6 may 06

 

Steve Slatin on mon 24 apr 06


Susan --

You should read all of the many replies to your
inquiry -- there's lots of good info there.

Knowing that you're going for ^6 oxidation
(generally called mid-fire, as opposed to
earthenware temps, which are called low-fire),
I'd say some good things to start with could be
--

Flint (silica source)
(or silica)

EPK (clay sources, for alumina etc.)
OM#4 Ball Clay
Red fireclay (of your choice)

Frit 3134 (melter sources)
Custer Feldspar
Nephelyne Syenite
Spodumene

Bentonite (suspender)

Cobalt Carb (colorants)
Copper Carb
Tin (or Zircopax)
Red iron oxide


Other folks would have different lists. I might
add Gillespie Borate or Gerstley, but they react
rather similarly to frit 3134, and at least to
start with, 3134 may be more predictable. COE
concerns lead me to add Spodumene, though some
folks avoid using it to keep lithium levels low.
(High concentrations of lithium can make glazes
do odd things, but low levels are usually OK.)

Flint alone is probably pretty much OK; and can
generally be subbed one for one for various
grades of silica. No need to start out with more
than one, take whatever your supplier has.

Clays are different, and there may be many
different kaolins and ball clays at some ceramics
supply houses, but start with one each. EPK and
OM#4 are possibly the most commonly called for in
recipes, and it's a good idea to know their
characteristics.

The colorant list is highly specific. If you
don't want blue, don't get the cobalt. Likewise
green and copper. You can spend thousands on
stains and so on, but if you know particularly
what you want, stains can be a quick way to get
spot on a shade you're after. If you want a
color opaque; you'll probably need either the tin
or zircopax (for which Ultrox, superpax, etc. are
essentially 1 for 1 substitutes*).

I have used CKK6 a little, and it's generally a
good clay but it's neither fish nor fowl -- not a
white stoneware exactly, but also not something
with the visual variety of a darker clay either.
My notes show some crazing problems, but that may
not be significant for you (also I had lots of
crazing issues at the beginning, and had to
control COE on my glazes to eliminate them). For
an urn, though, crazing might be desirable -- a
good decorative surface effect for a vessel that
will, presumably, be carefully handled.

As you learn to do what you want to do, you'll
find the resources here get better. The more
particular your question, the better the answers
will be. Lots of folks will help.

Best wishes -- Steve S

* The biggest difference between them is that
some have a bit of hafnium in them and the others
do not. Hafnium is a really neat metal, and
absorbs thermal neutrons really well. That's one
of the reasons why it's used for control rods in
nuclear reactors. That doesn't mean anything in
the pottery world, I was just thinking of it when
I was thinking of zircon sources.

--- Susan P wrote:

> Will do some low fire and need to come up with
> a great one for CKK6/Grog
> from Seattle Pottery Supply - have created a
> "reliquary sphere" for my
> mother's ashes and guess that I had better
> glaze it. If I knew how to attach
> picture through gmail I would....
>
> Thanks - Susan


__________________________________________________
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Susan P on mon 24 apr 06


If you were somewhat of a newbie and beginning (re-beginning) some glaze
tests and slip tests for a range of temperatures, what are the basic
ingredients you would want to have in your "kitchen".

Thanks,

Susan near Seattle

Maurice Weitman on mon 24 apr 06


At 11:28 -0700 on 4/24/06, Susan P wrote:
>If you were somewhat of a newbie and beginning (re-beginning) some glaze
>tests and slip tests for a range of temperatures, what are the basic
>ingredients you would want to have in your "kitchen".

Hello, Susan,

The answer depends on, in part, to what cone and in what atmosphere
you'll be firing.

Here's how I built my shopping list.

I gathered a dozen recipes I thought I'd like to experiment with and
listed their ingredients. I narrowed down the list to make it
manageable and bought the ingredients the remainder called for.

If there was an ingredient that was either very expensive or used in
only one glaze that I didn't care about, I skipped that glaze at
first.

Other glazes and tests will likely call for some other ingredients
and you can fill in and build up your inventory that way.

You don't mention this, but I would hope that you will have and use a
good mask, gloves, scales, sieves, mixer, etc.

Regards,
Maurice

Steve Slatin on mon 24 apr 06


Susan --

This question comes up often and it can't really
be answered. There are huge variables -- how you
want to fire, and to what cone, what kind of clay
you will be using, etc.

You don't need to start with a huge number of
materials, though -- a silica (or flint), a
source of melters (feldspar or nepheline syenite
or a frit or gerstley borate or a substitute for
gerstley), and a clay (kaolin or a ball clay) can
be a place to start. You can even start with a
single material that in iteself includes all
these items, using a slip glaze like Albany or
Alberta slip, if you're firing to cone 10 or so.

The number of variations, from that point, is
effectively infinite, and the additional
materials you need depends mostly on what you're
trying to do. If you have a more specific idea
about what your goals are, and you have a good
idea how you want to fire, post the information
here and I'm sure someone will help you.

Best wishes -- Steve Slatin

--- Susan P wrote:

> If you were somewhat of a newbie and beginning
> (re-beginning) some glaze
> tests and slip tests for a range of
> temperatures, what are the basic
> ingredients you would want to have in your
> "kitchen".
>
> Thanks,
>
> Susan near Seattle

Steve Slatin --

In the mornin’ cry of the rooster
The baby lay alone
And the old cow in the green grass
Shed white tears in the red hot sun

__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com

Susan P on mon 24 apr 06


Will do some low fire and need to come up with a great one for CKK6/Grog
from Seattle Pottery Supply - have created a "reliquary sphere" for my
mother's ashes and guess that I had better glaze it. If I knew how to attac=
h
picture through gmail I would....

Thanks - Susan

On 4/24/06, Steve Slatin wrote:
>
> Susan --
>
> This question comes up often and it can't really
> be answered. There are huge variables -- how you
> want to fire, and to what cone, what kind of clay
> you will be using, etc.
>
> You don't need to start with a huge number of
> materials, though -- a silica (or flint), a
> source of melters (feldspar or nepheline syenite
> or a frit or gerstley borate or a substitute for
> gerstley), and a clay (kaolin or a ball clay) can
> be a place to start. You can even start with a
> single material that in iteself includes all
> these items, using a slip glaze like Albany or
> Alberta slip, if you're firing to cone 10 or so.
>
> The number of variations, from that point, is
> effectively infinite, and the additional
> materials you need depends mostly on what you're
> trying to do. If you have a more specific idea
> about what your goals are, and you have a good
> idea how you want to fire, post the information
> here and I'm sure someone will help you.
>
> Best wishes -- Steve Slatin
>
> --- Susan P wrote:
>
> > If you were somewhat of a newbie and beginning
> > (re-beginning) some glaze
> > tests and slip tests for a range of
> > temperatures, what are the basic
> > ingredients you would want to have in your
> > "kitchen".
> >
> > Thanks,
> >
> > Susan near Seattle
>
> Steve Slatin --
>
> In the mornin' cry of the rooster
> The baby lay alone
> And the old cow in the green grass
> Shed white tears in the red hot sun
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.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.
>

Susan P on mon 24 apr 06


Sigh - -AND - - -it is an electric kiln. I do sometime think that the
strawman from Oz and I ought to share the same theme song...

Susan near Seattle

On 4/24/06, Steve Slatin wrote:
>
> Susan --
>
> This question comes up often and it can't really
> be answered. There are huge variables -- how you
> want to fire, and to what cone, what kind of clay
> you will be using, etc.
>
> You don't need to start with a huge number of
> materials, though -- a silica (or flint), a
> source of melters (feldspar or nepheline syenite
> or a frit or gerstley borate or a substitute for
> gerstley), and a clay (kaolin or a ball clay) can
> be a place to start. You can even start with a
> single material that in iteself includes all
> these items, using a slip glaze like Albany or
> Alberta slip, if you're firing to cone 10 or so.
>
> The number of variations, from that point, is
> effectively infinite, and the additional
> materials you need depends mostly on what you're
> trying to do. If you have a more specific idea
> about what your goals are, and you have a good
> idea how you want to fire, post the information
> here and I'm sure someone will help you.
>
> Best wishes -- Steve Slatin
>
> --- Susan P wrote:
>
> > If you were somewhat of a newbie and beginning
> > (re-beginning) some glaze
> > tests and slip tests for a range of
> > temperatures, what are the basic
> > ingredients you would want to have in your
> > "kitchen".
> >
> > Thanks,
> >
> > Susan near Seattle
>
> Steve Slatin --
>
> In the mornin' cry of the rooster
> The baby lay alone
> And the old cow in the green grass
> Shed white tears in the red hot sun
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.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.
>

John Anthony on mon 24 apr 06


I tried to imagine slip and glaze tests at various temps, for various
atmospheres,
from raku to electric to anagama. Here's what I came up with off the
top of my head-
probably incomplete, maybe one or two things one (not I) could live
without. I think I have
about twice this number of ingredients in the old glaze kitchen at
this point.







Custer Feldspar
F-4 feldspar
Cornwall Stone

Nepheline Syenite

Om4 Ball Clay
Kentucky Stone

EDgar Plastic Kaolin
Grolleg Kaolin
Calcined Kaolin

RedArt
Alberta Slip

Hawthorne Fireclay

Gerstly Borate

Ferro Frit 3110
Ferro Frit 3124
Ferro Frit 3134

Talc
Spodumene
Whiting
Dolomite

Borax

Soda Ash

Silica

Alumina Oxide (calcined Alumina Hydrate)

Bentonite

Rutile
Red Iron Oxide
yellow Ochre
Tin Oxide
Zinc Oxide
Chrome Oxide
Nickel Oxide
Manganese Dioxide
Titanium Dioxide
Zircopax




Cobalt Carbonate
Copper Carbonate
Strontium Carbonate
Lithium Carbonate
Magnesium Carbonate



cheers,
John A

Lynn Goodman Porcelain Pottery on mon 24 apr 06


I would look around at glazes in the temp range/atmosphere I was going
to be firing at, and ask questions of the potters whose glazes I liked
(what temp/range do they fire at? does the glaze have a "type"
name--i.e., celadon, majolica, etc? anything you should know about any
of those materials?). I would then look at recipes which would
correspond to the glazes I liked. Finally, a pattern should
emerge--what materials are common to all or most of those glazes?

This will require some work and patience on your part, but it will be
rewarded.

Lynn



On Apr 24, 2006, at 2:28 PM, Susan P wrote:

> If you were somewhat of a newbie and beginning (re-beginning) some
> glaze
> tests and slip tests for a range of temperatures, what are the basic
> ingredients you would want to have in your "kitchen".
>
> Thanks,
>
> Susan near Seattle
>
> _______________________________________________________________________
> _______
> 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.
>
>
Lynn Goodman
Fine Porcelain Pottery
548 Court St.
Brooklyn, NY 11231
718-858-6920
Cell 347-526-9805
www.lynngoodmanporcelain.com

Lynn Goodman Porcelain Pottery on mon 24 apr 06


I work ^6 electric and can help you out with recipes/materials. Contact
me off-list if you are interested.

Lynn



On Apr 24, 2006, at 8:16 PM, Susan P wrote:

> Sigh - -AND - - -it is an electric kiln. I do sometime think that the
> strawman from Oz and I ought to share the same theme song...
>
> Susan near Seattle



Lynn Goodman
Fine Porcelain Pottery
548 Court St.
Brooklyn, NY 11231
718-858-6920
Cell 347-526-9805
www.lynngoodmanporcelain.com

Ron Roy on fri 28 apr 06


Hi Steve,

We are going to have a civilized discussion about some of your concepts -
all in the spirit of two people who respect each other of course - and each
valuing the others friendship - OK?

If you were to do a glaze with 25% GB and tried to sub in Gillespie borate
for the GB you would get close - but if you subbed in 3134 you would have a
different glaze - not enough boron in 3134 for starters - and no MgO in
3134 - so right away the CTE is going to be out of whack.

Your mission - if you choose to accept - is to redo a glaze with at least
20% GB with 3134 subbed in - do you want me to send you one?

Spodumene is not a concern to me - except if the glaze is so unstable and
will release enough Lithium into food to be a concern. What I often warn
potters about is the use of lithium carb in amounts over 2% because it can
- with some clay bodies - produce spectacular fit problems - I can't say
which bodies but it would be a great project for someone to try - and I
would help if needed!!!!

Flint is not available in NA that I know of by the way - we use silica
here. Flint is slightly different in that it has some CaO - only available
in Great Briton as far as I know..

Other wise I agree and congratulate you on your post - your buddy - R


>Other folks would have different lists. I might
>add Gillespie Borate or Gerstley, but they react
>rather similarly to frit 3134, and at least to
>start with, 3134 may be more predictable. COE
>concerns lead me to add Spodumene, though some
>folks avoid using it to keep lithium levels low.
>(High concentrations of lithium can make glazes
>do odd things, but low levels are usually OK.)
>
>Flint alone is probably pretty much OK; and can
>generally be subbed one for one for various
>grades of silica. No need to start out with more
>than one, take whatever your supplier has.
>
>Clays are different, and there may be many
>different kaolins and ball clays at some ceramics
>supply houses, but start with one each. EPK and
>OM#4 are possibly the most commonly called for in
>recipes, and it's a good idea to know their
>characteristics.
>
>The colorant list is highly specific. If you
>don't want blue, don't get the cobalt. Likewise
>green and copper. You can spend thousands on
>stains and so on, but if you know particularly
>what you want, stains can be a quick way to get
>spot on a shade you're after. If you want a
>color opaque; you'll probably need either the tin
>or zircopax (for which Ultrox, superpax, etc. are
>essentially 1 for 1 substitutes*).
>
>I have used CKK6 a little, and it's generally a
>good clay but it's neither fish nor fowl -- not a
>white stoneware exactly, but also not something
>with the visual variety of a darker clay either.
>My notes show some crazing problems, but that may
>not be significant for you (also I had lots of
>crazing issues at the beginning, and had to
>control COE on my glazes to eliminate them). For
>an urn, though, crazing might be desirable -- a
>good decorative surface effect for a vessel that
>will, presumably, be carefully handled.
>
>As you learn to do what you want to do, you'll
>find the resources here get better. The more
>particular your question, the better the answers
>will be. Lots of folks will help.
>
>Best wishes -- Steve S
>
>* The biggest difference between them is that
>some have a bit of hafnium in them and the others
>do not. Hafnium is a really neat metal, and
>absorbs thermal neutrons really well. That's one
>of the reasons why it's used for control rods in
>nuclear reactors. That doesn't mean anything in
>the pottery world, I was just thinking of it when
>I was thinking of zircon sources.
>
>--- Susan P wrote:
>
>> Will do some low fire and need to come up with
>> a great one for CKK6/Grog
>> from Seattle Pottery Supply - have created a
>> "reliquary sphere" for my
>> mother's ashes and guess that I had better
>> glaze it. If I knew how to attach
>> picture through gmail I would....
>>
>> Thanks - Susan
>
>
>__________________________________________________
>Do You Yahoo!?
>Tired of spam? Yahoo! Mail has the best spam protection around
>http://mail.yahoo.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.

Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0

JOYCE LEE on fri 5 may 06


ok
----- Original Message -----
From: "Susan P"
To:
Sent: Monday, April 24, 2006 5:16 PM
Subject: Re: Shopping List? Glaze / Slip tests


Sigh - -AND - - -it is an electric kiln. I do sometime think that the
strawman from Oz and I ought to share the same theme song...

Susan near Seattle

On 4/24/06, Steve Slatin wrote:
>
> Susan --
>
> This question comes up often and it can't really
> be answered. There are huge variables -- how you
> want to fire, and to what cone, what kind of clay
> you will be using, etc.
>
> You don't need to start with a huge number of
> materials, though -- a silica (or flint), a
> source of melters (feldspar or nepheline syenite
> or a frit or gerstley borate or a substitute for
> gerstley), and a clay (kaolin or a ball clay) can
> be a place to start. You can even start with a
> single material that in iteself includes all
> these items, using a slip glaze like Albany or
> Alberta slip, if you're firing to cone 10 or so.
>
> The number of variations, from that point, is
> effectively infinite, and the additional
> materials you need depends mostly on what you're
> trying to do. If you have a more specific idea
> about what your goals are, and you have a good
> idea how you want to fire, post the information
> here and I'm sure someone will help you.
>
> Best wishes -- Steve Slatin
>
> --- Susan P wrote:
>
> > If you were somewhat of a newbie and beginning
> > (re-beginning) some glaze
> > tests and slip tests for a range of
> > temperatures, what are the basic
> > ingredients you would want to have in your
> > "kitchen".
> >
> > Thanks,
> >
> > Susan near Seattle
>
> Steve Slatin --
>
> In the mornin' cry of the rooster
> The baby lay alone
> And the old cow in the green grass
> Shed white tears in the red hot sun
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.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.
>

____________________________________________________________________________
__
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.

JOYCE LEE on fri 5 may 06


ok
----- Original Message -----
From: "Susan P"
To:
Sent: Monday, April 24, 2006 5:15 PM
Subject: Re: Shopping List? Glaze / Slip tests


Will do some low fire and need to come up with a great one for CKK6/Grog
from Seattle Pottery Supply - have created a "reliquary sphere" for my
mother's ashes and guess that I had better glaze it. If I knew how to attach
picture through gmail I would....

Thanks - Susan

On 4/24/06, Steve Slatin wrote:
>
> Susan --
>
> This question comes up often and it can't really
> be answered. There are huge variables -- how you
> want to fire, and to what cone, what kind of clay
> you will be using, etc.
>
> You don't need to start with a huge number of
> materials, though -- a silica (or flint), a
> source of melters (feldspar or nepheline syenite
> or a frit or gerstley borate or a substitute for
> gerstley), and a clay (kaolin or a ball clay) can
> be a place to start. You can even start with a
> single material that in iteself includes all
> these items, using a slip glaze like Albany or
> Alberta slip, if you're firing to cone 10 or so.
>
> The number of variations, from that point, is
> effectively infinite, and the additional
> materials you need depends mostly on what you're
> trying to do. If you have a more specific idea
> about what your goals are, and you have a good
> idea how you want to fire, post the information
> here and I'm sure someone will help you.
>
> Best wishes -- Steve Slatin
>
> --- Susan P wrote:
>
> > If you were somewhat of a newbie and beginning
> > (re-beginning) some glaze
> > tests and slip tests for a range of
> > temperatures, what are the basic
> > ingredients you would want to have in your
> > "kitchen".
> >
> > Thanks,
> >
> > Susan near Seattle
>
> Steve Slatin --
>
> In the mornin' cry of the rooster
> The baby lay alone
> And the old cow in the green grass
> Shed white tears in the red hot sun
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.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.
>

____________________________________________________________________________
__
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.

JOYCE LEE on fri 5 may 06


ok
----- Original Message -----
From: "Lynn Goodman Porcelain Pottery"
To:
Sent: Monday, April 24, 2006 5:35 PM
Subject: Re: Shopping List? Glaze / Slip tests


> I would look around at glazes in the temp range/atmosphere I was going
> to be firing at, and ask questions of the potters whose glazes I liked
> (what temp/range do they fire at? does the glaze have a "type"
> name--i.e., celadon, majolica, etc? anything you should know about any
> of those materials?). I would then look at recipes which would
> correspond to the glazes I liked. Finally, a pattern should
> emerge--what materials are common to all or most of those glazes?
>
> This will require some work and patience on your part, but it will be
> rewarded.
>
> Lynn
>
>
>
> On Apr 24, 2006, at 2:28 PM, Susan P wrote:
>
> > If you were somewhat of a newbie and beginning (re-beginning) some
> > glaze
> > tests and slip tests for a range of temperatures, what are the basic
> > ingredients you would want to have in your "kitchen".
> >
> > Thanks,
> >
> > Susan near Seattle
> >
> > _______________________________________________________________________
> > _______
> > 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.
> >
> >
> Lynn Goodman
> Fine Porcelain Pottery
> 548 Court St.
> Brooklyn, NY 11231
> 718-858-6920
> Cell 347-526-9805
> www.lynngoodmanporcelain.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.

JOYCE LEE on fri 5 may 06


ok
----- Original Message -----
From: "Lynn Goodman Porcelain Pottery"
To:
Sent: Monday, April 24, 2006 5:38 PM
Subject: Re: Shopping List? Glaze / Slip tests


> I work ^6 electric and can help you out with recipes/materials. Contact
> me off-list if you are interested.
>
> Lynn
>
>
>
> On Apr 24, 2006, at 8:16 PM, Susan P wrote:
>
> > Sigh - -AND - - -it is an electric kiln. I do sometime think that the
> > strawman from Oz and I ought to share the same theme song...
> >
> > Susan near Seattle
>
>
>
> Lynn Goodman
> Fine Porcelain Pottery
> 548 Court St.
> Brooklyn, NY 11231
> 718-858-6920
> Cell 347-526-9805
> www.lynngoodmanporcelain.com
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
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JOYCE LEE on fri 5 may 06


ok
----- Original Message -----
From: "John Anthony"
To:
Sent: Monday, April 24, 2006 3:42 PM
Subject: Shopping List? Glaze / Slip tests


> I tried to imagine slip and glaze tests at various temps, for various
> atmospheres,
> from raku to electric to anagama. Here's what I came up with off the
> top of my head-
> probably incomplete, maybe one or two things one (not I) could live
> without. I think I have
> about twice this number of ingredients in the old glaze kitchen at
> this point.
>
>
>
>
>
>
>
> Custer Feldspar
> F-4 feldspar
> Cornwall Stone
>
> Nepheline Syenite
>
> Om4 Ball Clay
> Kentucky Stone
>
> EDgar Plastic Kaolin
> Grolleg Kaolin
> Calcined Kaolin
>
> RedArt
> Alberta Slip
>
> Hawthorne Fireclay
>
> Gerstly Borate
>
> Ferro Frit 3110
> Ferro Frit 3124
> Ferro Frit 3134
>
> Talc
> Spodumene
> Whiting
> Dolomite
>
> Borax
>
> Soda Ash
>
> Silica
>
> Alumina Oxide (calcined Alumina Hydrate)
>
> Bentonite
>
> Rutile
> Red Iron Oxide
> yellow Ochre
> Tin Oxide
> Zinc Oxide
> Chrome Oxide
> Nickel Oxide
> Manganese Dioxide
> Titanium Dioxide
> Zircopax
>
>
>
>
> Cobalt Carbonate
> Copper Carbonate
> Strontium Carbonate
> Lithium Carbonate
> Magnesium Carbonate
>
>
>
> cheers,
> John A
>
>
____________________________________________________________________________
__
> 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.