L. P. Skeen on tue 30 apr 02
Someone wrote yesterday or the day before about using 20 mule team in a =
glaze recipe as a source of boron. I have been waiting with bated =
breath, as it were, to see someone respond but alas no dice. If you =
know the answer but were waiting for someone else to jump in there =
first, please take the leap - I wanna know too. :)
Thanks
L
L. P. Skeen www.living-tree.net
Living Tree Studios, Summerfield, NC
"Just because nobody understands you does NOT mean that you are an =
artist."
The election ain't over til your brother counts the votes.
Craig Clark on wed 1 may 02
L, back in school we had a fine old salt kiln. We used 20 mule team
borax in a few of the glazes (don't remember which ones) and also mixed it
with the salt that was injected into the kiln. It worked well for our
purposes. Keep in mind that there were no real tests done and the difference
in criteria used by many students versus the professional potter.
Craig Dunn CLark
619 East 11 1/2 st
Houston, Texas 77008
(713)861-2083
mudman@hal-pc.org
----- Original Message -----
From: "L. P. Skeen"
To:
Sent: Tuesday, April 30, 2002 9:11 PM
Subject: 20 mule team vs. boron?
Someone wrote yesterday or the day before about using 20 mule team in a
glaze recipe as a source of boron. I have been waiting with bated breath,
as it were, to see someone respond but alas no dice. If you know the answer
but were waiting for someone else to jump in there first, please take the
leap - I wanna know too. :)
Thanks
L
L. P. Skeen www.living-tree.net
Living Tree Studios, Summerfield, NC
"Just because nobody understands you does NOT mean that you are an artist."
The election ain't over til your brother counts the votes.
____________________________________________________________________________
__
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Matt MacIntire on wed 1 may 02
I don't recall the original question L. refered to, but I do know that
20 Mule Team borax is, well, BORAX. Sodium tetraborate decahydrate --
it says so on the box.
Borax could certainly be used as a source of Boron in a glaze, provided
you are willing to tolerate that it is soluable in water. Of course,
frits would be more predicatble. =20
I've used 20 Mule Team Borax many times in recipes calling for Borax.
For example, many recipes for slip include borax, presumably to help the
slip adhere. I haven't done Raku in a LONG time, but I recollect that
lots of Raku glazes had significant amounts of Borax. We used either
form interchangeably. I haven't compared the price lately, but last
time I checked I think it was a bit cheaper than the Borax my clay
supplier sold.
Try it. Test it. Use it if you need it.
Matt
Elinor Eberhardt on wed 1 may 02
20 Mule Team Borax is soluble in water. Soluble materials should be avoided
in glazes for a lot of reasons. That's why Gerstley Borate is so popular.
It's one of the few natural boron containing materials that is not soluble
in water.
Elinor Eberhardt, Aitkin MN.
L. P. Skeen wrote:
> Someone wrote yesterday or the day before about using 20 mule team in a
glaze recipe as a source of boron. I have been waiting with bated breath,
as it were, to see someone respond but alas no dice. If you know the answer
but were waiting for someone else to jump in there first, please take the
leap - I wanna know too. :)
>
> Thanks
> L
>
> L. P. Skeen www.living-tree.net
> Living Tree Studios, Summerfield, NC
> "Just because nobody understands you does NOT mean that you are an
artist."
> The election ain't over til your brother counts the votes.
>
>
____________________________________________________________________________
__
> 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.
islandplace on wed 1 may 02
I've used straight 20 Mule Team as a surface decoration on sculpture cone 6.
mike
----- Original Message -----
From: "L. P. Skeen"
To:
Sent: Tuesday, April 30, 2002 10:11 PM
Subject: 20 mule team vs. boron?
Someone wrote yesterday or the day before about using 20 mule team in a
glaze recipe as a source of boron. I have been waiting with bated breath,
as it were, to see someone respond but alas no dice. If you know the answer
but were waiting for someone else to jump in there first, please take the
leap - I wanna know too. :)
Thanks
L
L. P. Skeen www.living-tree.net
Living Tree Studios, Summerfield, NC
"Just because nobody understands you does NOT mean that you are an artist."
The election ain't over til your brother counts the votes.
____________________________________________________________________________
__
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.
L. P. Skeen on wed 1 may 02
Never heard of that; what does it do??? To what kind of claybody are you
applying the borax?
L
----- Original Message -----
From: "islandplace"
Subject: Re: 20 mule team vs. boron?
> I've used straight 20 Mule Team as a surface decoration on sculpture cone
6.
Earl Brunner on wed 1 may 02
This is true in the general sense, however Gerstley Borate is not
completely insoluble. It has been a fairly good source of boron for
glazes that was cheaper than commercial frits. But solubility has been
an issue with it.
Earl Brunner
mailto:bruec@anv.net
http://coyote.accessnv.com/bruec
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG] On
Behalf Of Elinor Eberhardt
Sent: Wednesday, May 01, 2002 7:28 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: 20 mule team vs. boron?
20 Mule Team Borax is soluble in water. Soluble materials should be
avoided in glazes for a lot of reasons. That's why Gerstley Borate is
so popular. It's one of the few natural boron containing materials that
is not soluble in water.
Elinor Eberhardt, Aitkin MN.
Don Goodrich on thu 2 may 02
Lisa,
I use 20 Mule Team borax in the following home-formulated glaze:
Ashwood Borax TH ^6 oxidation
9 Woodash (unwashed ash from ash trees in my yard)
5 Borax (20 Mule Team)
19 Custer feldspar
28 Flint (300 mesh)
37 ThunderHawk Clay (name of local golf course where I dug it up)
2 Bentonite
It works very well, and is a gloss or satin at cone 6, but I've only
recently
started using it. I don't know if there'll be any changes after it's been
sitting awhile. Dunno how much more soluble boron from this source is than
from other mined sources. Hope somebody knowledgeable tells us...
Don Goodrich
goodrichdn@aol.com
http://members.aol.com/goodrichdn/
John Stromnes on thu 2 may 02
I am no glaze guru, but it seems apparent that 20-mule-team is soluable,
whereas boron frits are no, and GB only mildly so. You probably had better
cacline your mules before you whip them up into a glaze batch.
John Syodo Stromnes
Polson MT
Date: Tue, 30 Apr 2002 22:11:23 -0400
From: "L. P. Skeen"
Subject: 20 mule team vs. boron?
Someone wrote yesterday or the day before about using 20 mule team in a =
glaze recipe as a source of boron. I have been waiting with bated =
breath, as it were, to see someone respond but alas no dice. If you =
know the answer but were waiting for someone else to jump in there =
first, please take the leap - I wanna know too. :)
Thanks
L
L. P. Skeen www.living-tree.net
Living Tree Studios, Summerfield, NC
"Just because nobody understands you does NOT mean that you are an =
artist."
The election ain't over til your brother counts the votes.
Martin Rice on fri 3 may 02
Hi, I've seen several references from time to time about calcline (as below)
and was wondering what that means.
Thanks,
Martin
Lagunas de Barú, Costa Rica
www.rice-family.org
Revised and updated 4/1/02
----- Original Message -----
From: "John Stromnes"
To:
Sent: Thursday, May 02, 2002 9:21 AM
Subject: [CLAYART] 20 mule team vs. boron?
> I am no glaze guru, but it seems apparent that 20-mule-team is soluable,
> whereas boron frits are no, and GB only mildly so. You probably had
better
> cacline your mules before you whip them up into a glaze batch.
> John Syodo Stromnes
> Polson MT
>
>
>
> Date: Tue, 30 Apr 2002 22:11:23 -0400
> From: "L. P. Skeen"
> Subject: 20 mule team vs. boron?
>
> Someone wrote yesterday or the day before about using 20 mule team in a =
> glaze recipe as a source of boron. I have been waiting with bated =
> breath, as it were, to see someone respond but alas no dice. If you =
> know the answer but were waiting for someone else to jump in there =
> first, please take the leap - I wanna know too. :)
>
> Thanks
> L
>
>
>
> L. P. Skeen www.living-tree.net
> Living Tree Studios, Summerfield, NC
> "Just because nobody understands you does NOT mean that you are an =
> artist."
> The election ain't over til your brother counts the votes.
>
>
____________________________________________________________________________
__
> 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.
>
>
Matt MacIntire on fri 3 may 02
Martin asked:
>> Hi, I've seen several references from time to time about calcline=20
>> (as below) and was wondering what that means.
Calcine means to heat to a high temperature, but without fusing. =20
This would be done to drive off volatile material or to accomplish other
changes, such as oxidation or pulverization. Clay is often calcined to
change it's working properties (mainly shrinkage) without altering it's
chemical properties.
However, it is doubtful that calcining Borax would make it insoluble.
The borax would have to be calcined to a very low temperature. If the
mass didn't fuse, my guess is that it would probably still be soluble in
water. That is the reason that people often use frits to get Boron in
glazes. Most of the sources of Boron are at least slightly soluble in
water. Incorporating soluble materials into an *insoluable* frit is one
of the main reasons people make and use frits.
Matt
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