mel jacobson on thu 24 apr 08
i should give credit to this body.
it is the old alfred throwing porcelain.
many years in use.
more than likely a val cushing invention, it is not a
porcelain addicts body as it has a great deal
of ball clay...and that means it throws pretty well.
those that seek `pure white transluscence` would scorn this body.
but, each has a vision as to what they want their
pots to be, look like. and, that is more than respected.
i would think it would be fine at cone 6.
it does bond well with most any body.
i used white slip for years that was touchy...came off....
and spalled all over the place.
this does none of that. it was the perfect find.
i use my own clay body, strained for colored slips.
obviously, the closer your slip is to your own clay body, the
better in most cases.
what i like best about 4x4 is that you can just grab
an ice cream pail, fill it four times with each ingredient
and you have clay. pug it...throw a few days later.
or, half cup of each into a blender, add water to taste
and you have white slip. (taste hell, you could brush your
teeth with this slip.)
of course you can add oxides to color it.
`i don't play doctor science with clay bodies.`
i like easy.
mel
from minnetonka:
website http://www.visi.com/~melpots/
clayart site:
http://www.visi.com/~melpots/clayart.html
James and Sherron Bowen on thu 24 apr 08
I wonder. Can I substitute PV clay for the spar? I have a hundred pounds or
so laying around
Jim
----- Original Message -----
From: "mel jacobson"
To:
Sent: Thursday, April 24, 2008 8:27 AM
Subject: 4x4 porcelain
Hank Murrow on thu 24 apr 08
On Apr 24, 2008, at 2:00 PM, James and Sherron Bowen wrote:
> I wonder. Can I substitute PV clay for the spar? I have a hundred
> pounds or
> so laying around
Dear Jim;
PV will give you more silica than spar, but it is also somewhat
plastic. it is a weathered Rhyolite. Think petuntse.
Cheers, Hank
James and Sherron Bowen on thu 24 apr 08
Thanks Hank,
I will have to see what I can do to reduce the silica to offset that and
increase the spar. I seem to remember a porcelain body being posted using
Plastic Vitrox in the past . I will have to check the archives. I am just
looking for a friendly body that looks like porcelain. Transparency isn't a
necessity right now. It will be a small hand mixed batch of maybe two or
three hundred pounds.
Jim
----- Original Message -----
From: "Hank Murrow"
To:
Sent: Thursday, April 24, 2008 6:55 PM
Subject: Re: 4x4 porcelain
> On Apr 24, 2008, at 2:00 PM, James and Sherron Bowen wrote:
>
>> I wonder. Can I substitute PV clay for the spar? I have a hundred
>> pounds or
>> so laying around
>
> Dear Jim;
>
> PV will give you more silica than spar, but it is also somewhat
> plastic. it is a weathered Rhyolite. Think petuntse.
>
> Cheers, Hank
>
> ______________________________________________________________________________
> Clayart members may send postings to: clayart@lsv.ceramics.org
>
> You may look at the archives for the list, post messages, change your
> subscription settings or unsubscribe/leave the list here:
> http://www.acers.org/cic/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots2@visi.com
>
>
Mark Cortright on fri 25 apr 08
Mel said
>i should give credit to this body.
>it is the old alfred throwing porcelain.
>many years in use.
>more than likely a val cushing invention, it is not a
>porcelain addicts body as it has a great deal
>of ball clay...and that means it throws pretty well.
>
>those that seek `pure white transluscence` would scorn this body.
>
>but, each has a vision as to what they want their
>pots to be, look like. and, that is more than respected.
>
>i would think it would be fine at cone 6.
>it does bond well with most any body.
>
>i used white slip for years that was touchy...came off....
>and spalled all over the place.
>this does none of that. it was the perfect find.
>i use my own clay body, strained for colored slips.
>obviously, the closer your slip is to your own clay body, the
>better in most cases.
>
>what i like best about 4x4 is that you can just grab
>an ice cream pail, fill it four times with each ingredient
>and you have clay. pug it...throw a few days later.
>or, half cup of each into a blender, add water to taste
>and you have white slip. (taste hell, you could brush your
>teeth with this slip.)
>of course you can add oxides to color it.
>`i don't play doctor science with clay bodies.`
>
>i like easy.
>mel
Can you share this simple jewel of a formula with us -I'd like to try it out.
Thanks Mark Cortright
www.liscomhillpottery.com
Bill Merrill on fri 25 apr 08
In the past, it was said that PV clay was could be substituted for
Cornwall Stone. Make a fusion button test of the material and fire it
to cone 10. =20
Mix it 50/50 with Custer or any other spar to see the melt properties.
The unity column etc. won't be the same but, you are looking for a
substitute.
Bill=20
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of James and
Sherron Bowen
Sent: Thursday, April 24, 2008 2:00 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: 4x4 porcelain
I wonder. Can I substitute PV clay for the spar? I have a hundred pounds
or
so laying around
Jim
----- Original Message -----
From: "mel jacobson"
To:
Sent: Thursday, April 24, 2008 8:27 AM
Subject: 4x4 porcelain
________________________________________________________________________
______
Clayart members may send postings to: clayart@lsv.ceramics.org
You may look at the archives for the list, post messages, change your
subscription settings or unsubscribe/leave the list here:
http://www.acers.org/cic/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots2@visi.com
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