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lost glaze recipe - malcolm davis shino rare or half done

updated sat 21 may 05

 

Victoria Cherney on thu 19 may 05


I found this 2002 post when searching the archives. I have been looking for
a glaze that might approximate a shino in oxidation, and I found this old
post when searching the archives. If perhaps someone in clayart tested this
cone 6 Malcolm Davis recipe or another shino in oxidation. I'd be so
pleased to find know the results.

Oh, and being a novice, can anyone tell me how the breakdown of ingredients
following the actual recipe relates to the recipe. I can look up what the
chemical shorthand refers to, I just don't understand what to do with that list.

Thanks in advance,
Victoria Cherney
vacherney@gmail.com (heading has old email address)


On Mon, 1 Jul 2002 17:45:13 +0200, Ababi wrote:

>I tried to recalculate it for ^6.
>This day I do not have students so it will take sometime until my next ^6 fire.
>To remind you the only thing I understand about shino is that it is a glaze!
>Here is the recipe
>You may try it and give me you advise suggestions as well as critics( only
positive)
>MALCOLM DAVIS SHINO^6
>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
>
>Cone 1 1326 deg.C. -
>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
>
>SODA ASH 14.00
>EPK Kaolin 39.00
>FRIT 3110 27.00
>Cryolite 19.00
>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
>
> Seger Weight%
>KNO 0.914 26.59%
>CaO 0.084 2.18%
>MgO 0.003 0.05%
>Al2O3 0.529 25.01%
>P2O5 0.002 0.11%
>B2O3 0.027 0.86%
>SiO2 1.616 45.03%
>TiO2 0.005 0.18%
>K2O 0.021 0.93%
>Na2O 0.892 25.66%
>Al:Si 3.05
>Expan. 14.47
>ST 309.65
>Tom Buck told me once the cryolite is called "greenland spar" too so alisa
walk over
>there it is part of your Denemark and bring some!
>Ababi Sharon
>Glaze addict
>Kibbutz Shoval Israel
>ababisha@shoval.org.il
>http://members4.clubphoto.com/ababi306910/
>
>---------- Original Message ----------
>
>>Got it on the slab for cone 6 ox. Let you know how it looks after firing.
>>A lot of Marcia's redux. glazes look good in ox, but they are also cone 6,
>>so
>>they are melted. Let us see how this one goes.
>>regards from Alisa
>
>>> Did any of you who work both kilns both cones tried and compare using such
>>a glaze
>>> in ^6 ox?
>>> Of course I would not expect it to be a real shino, but what about half
>>done
>>> or rare?
>>> Ababi Sharon
>>> Glaze addict
>>>> 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.
>
>______________________________________________________________________________
>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 Slatin on thu 19 may 05


Victoria --

If you have all of the materials called for in the
recipe, and aren't concerned with how the glaze works,
the analysis is not especially useful. If you look at
glazes a lot and are interested in why they do what
they do, it can give you some hints as to what might
work. Ababi was a fearless glaze experimenter, and he
was interested in the why of glaze results.

Every glaze tinkerer has their own way of
understanding glazes. The Seger formula itself is
really just a very convenient way for some folks to
think about a glaze. When you've got a Seger
analysis, you can readily look at the concentration of
silica and alumina relative to frits, (because Seger
norms most of the melters to 1.0).

If you don't have the ingredients the recipe calls
for, you can use the analysis as a target to try to
replicate the result using different original
materials.

Best wishes -- Steve S.

--- Victoria Cherney wrote:

> Oh, and being a novice, can anyone tell me how the
> breakdown of ingredients
> following the actual recipe relates to the recipe.
> I can look up what the
> chemical shorthand refers to, I just don't
> understand what to do with that list.


Steve Slatin --

Some men will do here for diamonds what some men will do here for gold

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Ron Roy on fri 20 may 05


Hi Victoria,

After my talk on Shino glazes at NCECA I passed on the information that I
had seen a glaze - that looked like a shino glaze - fired at cone 6 in
oxidation.

Malcolm said he did not believe it - which indicates to me that this glaze
does not look like a shino at cone 6 in oxidation.

I have since found out that the cone 6 shino I saw was fired in reduction -
not oxidation.

Cryolite is well know for making cratered glazes by the way.

Protect your shelves and let us know the results if you do try it.

The numbers after the glaze are simply a Seger molecular formula of that
glaze - you do not need them to mix the glaze.

RR

>I found this 2002 post when searching the archives. I have been looking for
>a glaze that might approximate a shino in oxidation, and I found this old
>post when searching the archives. If perhaps someone in clayart tested this
>cone 6 Malcolm Davis recipe or another shino in oxidation. I'd be so
>pleased to find know the results.
>
>Oh, and being a novice, can anyone tell me how the breakdown of ingredients
>following the actual recipe relates to the recipe. I can look up what the
>chemical shorthand refers to, I just don't understand what to do with that
>list.
>
>Thanks in advance,
>Victoria Cherney
>vacherney@gmail.com (heading has old email address)
>
>
>On Mon, 1 Jul 2002 17:45:13 +0200, Ababi wrote:
>
>>I tried to recalculate it for ^6.
>>This day I do not have students so it will take sometime until my next ^6
>>fire.
>>To remind you the only thing I understand about shino is that it is a glaze!
>>Here is the recipe
>>You may try it and give me you advise suggestions as well as critics( only
>positive)
>>MALCOLM DAVIS SHINO^6
>>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
>>
>>Cone 1 1326 deg.C. -
>>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
>>
>>SODA ASH 14.00
>>EPK Kaolin 39.00
>>FRIT 3110 27.00
>>Cryolite 19.00
>>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
>>
>> Seger Weight%
>>KNO 0.914 26.59%
>>CaO 0.084 2.18%
>>MgO 0.003 0.05%
>>Al2O3 0.529 25.01%
>>P2O5 0.002 0.11%
>>B2O3 0.027 0.86%
>>SiO2 1.616 45.03%
>>TiO2 0.005 0.18%
>>K2O 0.021 0.93%
>>Na2O 0.892 25.66%
>>Al:Si 3.05
>>Expan. 14.47
>>ST 309.65
>>Tom Buck told me once the cryolite is called "greenland spar" too so alisa
>walk over
>>there it is part of your Denemark and bring some!
>>Ababi Sharon
>>Glaze addict
>>Kibbutz Shoval Israel
>>ababisha@shoval.org.il
>>http://members4.clubphoto.com/ababi306910/
>>
>>---------- Original Message ----------
>>
>>>Got it on the slab for cone 6 ox. Let you know how it looks after firing.
>>>A lot of Marcia's redux. glazes look good in ox, but they are also cone 6,
>>>so
>>>they are melted. Let us see how this one goes.
>>>regards from Alisa
>>
>>>> Did any of you who work both kilns both cones tried and compare using such
>>>a glaze
>>>> in ^6 ox?
>>>> Of course I would not expect it to be a real shino, but what about half
>>>done
>>>> or rare?
>>>> Ababi Sharon
>>>> Glaze addict
>>>>> 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.
>>
>>______________________________________________________________________________
>>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.

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