Wade Blocker on sun 29 aug 99
I have used the following recipe. It gives an excellent crawl pattern on
brown clay. According to my notes it also gave a very good crawl pattern
over a temmoko glaze at cone 8.
Kudo Matto by Herb Sanders cone 9.
Oxford spar 40.06
magnesium carbonate l5.76
Kaolin l4.50
silica l7.98
whiting ll.68
bentonite 2.00
I also added CMC to the above recipe
PS if you overfire this glaze you will not get a crawl pattern
Hope this works for you, Mia in ABQ
Assumption Abbey on sun 29 aug 99
At 00:02 8/29/99 EDT, you wrote:
>----------------------------Original message----------------------------
>
>I have used the following recipe. It gives an excellent crawl pattern on
>brown clay. According to my notes it also gave a very good crawl pattern
>over a temmoko glaze at cone 8.
>
> Kudo Matto by Herb Sanders cone 9.
>
>
> Oxford spar 40.06
> magnesium carbonate l5.76
> Kaolin l4.50
> silica l7.98
> whiting ll.68
> bentonite 2.00
>
> I also added CMC to the above recipe
> PS if you overfire this glaze you will not get a crawl pattern
> Hope this works for you, Mia in ABQ
>---------
Thanks Mia, I will have to give this one a try. I don't have the Oxford
Spar and wonder what might work as a sub?
Llewellyn Kouba
ABBEY POTTERY
http://www.assumptionabbey.com/Pottery.html
Wade Blocker on mon 30 aug 99
Unfortunately I am not a glaze guru. I would try to substitute Custer
for the Oxford spar. The ingredient that causes the glaze to crawl is the
magnesium carb. I doubt that substituting Custer for Oxford would make a
great deal of difference. Mia in
ABQ
Craig Martell on tue 31 aug 99
Mia wrote:
> Unfortunately I am not a glaze guru. I would try to substitute Custer
>for the Oxford spar. The ingredient that causes the glaze to crawl is the
>magnesium carb. I doubt that substituting Custer for Oxford would make a
>great deal of difference.
Hi:
I used to know a glaze guru but he took off on his Yak and headed to town
for some brown rice. Never came back! Musta stopped in at the Doo Dah
Room for a glass of Third Red Eye.
Carlton Ball's mega mudflat crawl glaze is 50% magnesium carb and 50%
nepheline syenite. Perhaps nepheline syenite or soda spar would be a good
sub if custer doesn't work. I think oxford was a potash spar though. I
looked through my old analysis papers and couldn't find Oxford. If you
want an analysis of Alajo clay from Ghana I have that though. Jeez, I need
to get out more but the Yak is gone!
later, Craig Martell in Oregon
Nancy Udell on wed 4 oct 06
Hi Mark, I have used Robbin Hoppers LG1 (ceramic spectrum p. 211) up
to cone 10 and even in salt and it does fine. It's a basic
reticulation glaze -- pics can be seen in his book: Recipe is:
Soda spar 30
3134 10
Mag Carb 31
3195 6
Talc 8
Zinc Ox 6
EPK 19
Good luck.
Nancy Udell
gina mars on fri 20 apr 12
Hi All, I have been using a crawl/ lichen glaze and was wondering if it =3D
can be fired in a cone 6 gas reduction as opposed
to a cone 6 oxidation which is what I had been doing. A student glazed =3D
a piece with it and really wants it gas fired
because there is another glaze on it that works well in gas. I'm not =3D
sure it I should pull it out or let it go.
Thanks, Gina Mars
www.marspottery.net
ronroy@CA.INTER.NET on fri 20 apr 12
Hi Gina - it would help if we could see the recipe - if there is no
iron or zinc it may be OK.
RR
Quoting gina mars :
> Hi All, I have been using a crawl/ lichen glaze and was wondering if
> it can be fired in a cone 6 gas reduction as opposed
> to a cone 6 oxidation which is what I had been doing. A student
> glazed a piece with it and really wants it gas fired
> because there is another glaze on it that works well in gas. I'm not
> sure it I should pull it out or let it go.
> Thanks, Gina Mars
> www.marspottery.net
>
John Britt on fri 20 apr 12
Yes, it can be fired in gas. Even gas reduction.
john britt pottery
ronroy@CA.INTER.NET on sat 21 apr 12
Hi Gina,
It should be the same in oxidation - not melting at cone 6. If it does
look different it will be because electric kilns usually cool faster
than gas kilns - you may have to fire down a bit from cone 08.
RR
Quoting gina mars :
> Hi Ron, The recipe is very simple
> Lichen
> Magnesium carb 22
> Neph sy 60
> ball clay 18
> I assume it's not food safe so I only use it on the outside and on
> sculpture, Gina Mars
> On Apr 21, 2012, at 12:00 AM, Clayart automatic digest system wrote:
>
>> Date: Fri, 20 Apr 2012 17:52:57 -0400
>> From: ronroy@CA.INTER.NET
>> Subject: Re: crawl glaze
>>
>> Hi Gina - it would help if we could see the recipe - if there is no
>> iron or zinc it may be OK.
>>
>> RR
>>
>>
>> Quoting gina mars :
>>
>>> Hi All, I have been using a crawl/ lichen glaze and was wondering if
>>> it can be fired in a cone 6 gas reduction as opposed
>>> to a cone 6 oxidation which is what I had been doing. A student
>>> glazed a piece with it and really wants it gas fired
>>> because there is another glaze on it that works well in gas. I'm not
>>> sure it I should pull it out or let it go.
>>> Thanks, Gina Mars
>>> www.marspottery.net
>>>
>>
>
ronroy@CA.INTER.NET on sat 21 apr 12
Hi Gina,
Got it backwards - it should be fine in gas - but the slower cool may
result in a more matte surface - easy to fix that if necessary.
RR
Quoting gina mars :
> Hi Ron, The recipe is very simple
> Lichen
> Magnesium carb 22
> Neph sy 60
> ball clay 18
> I assume it's not food safe so I only use it on the outside and on
> sculpture, Gina Mars
> On Apr 21, 2012, at 12:00 AM, Clayart automatic digest system wrote:
>
>> Date: Fri, 20 Apr 2012 17:52:57 -0400
>> From: ronroy@CA.INTER.NET
>> Subject: Re: crawl glaze
>>
>> Hi Gina - it would help if we could see the recipe - if there is no
>> iron or zinc it may be OK.
>>
>> RR
>>
>>
>> Quoting gina mars :
>>
>>> Hi All, I have been using a crawl/ lichen glaze and was wondering if
>>> it can be fired in a cone 6 gas reduction as opposed
>>> to a cone 6 oxidation which is what I had been doing. A student
>>> glazed a piece with it and really wants it gas fired
>>> because there is another glaze on it that works well in gas. I'm not
>>> sure it I should pull it out or let it go.
>>> Thanks, Gina Mars
>>> www.marspottery.net
>>>
>>
>
gina mars on sat 21 apr 12
Hi Ron, The recipe is very simple
Lichen
Magnesium carb 22
Neph sy 60
ball clay 18
I assume it's not food safe so I only use it on the outside and on =3D
sculpture, Gina Mars
On Apr 21, 2012, at 12:00 AM, Clayart automatic digest system wrote:
> Date: Fri, 20 Apr 2012 17:52:57 -0400
> From: ronroy@CA.INTER.NET
> Subject: Re: crawl glaze
>=3D20
> Hi Gina - it would help if we could see the recipe - if there is no
> iron or zinc it may be OK.
>=3D20
> RR
>=3D20
>=3D20
> Quoting gina mars :
>=3D20
>> Hi All, I have been using a crawl/ lichen glaze and was wondering if
>> it can be fired in a cone 6 gas reduction as opposed
>> to a cone 6 oxidation which is what I had been doing. A student
>> glazed a piece with it and really wants it gas fired
>> because there is another glaze on it that works well in gas. I'm not
>> sure it I should pull it out or let it go.
>> Thanks, Gina Mars
>> www.marspottery.net
>>=3D20
>=3D20
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