Earl Brunner on thu 16 nov 06
The precautions you mention are good for glaze drips, but will not hold the volume of melted earthenware from pot that melts in a high fire. the only precaution that really works for that is knowing your clay. At the art center where I run the studio, we don't allow outside clay period, and we restrict to one temperature range. We know we can't give them all the experience of all types of firing ranges and clays and techniques, and we don't try. We know our limitations and so do the students.
claybair wrote: Hey Pat,
Perhaps an additional precaution of a slab of clay
under the sealed paper saggar would be helpful.
A student in a class I was in fired several low fired clay pieces....to ^10.
She said...."I thought it was high fired clay.... they (clay store) just
gave me a bag"
Duh! This was not person totally new to clay... just one who was very
inattentive.
Several shelves were ruined , the bottom of the kiln needed repair
and no firing for several weeks. After that disaster we used clay cookies
brushed with kiln wash under everything and used elmers glue to secure them.
She did replace the shelves but it was a big mess!
Gayle Bair
Bainbridge Island, WA
Tucson, AZ
http://claybair.com
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG]On Behalf Of Pat Colyar
Sent: Thursday, November 16, 2006 8:58 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Paper Bag Saggar - Warning!
Everyone considering trying this technique, PLEASE notice that Nathan
described thoroughly layering the slip & paper to seal the bottom of the
paper saggar. One of our instructors did not do this, and ruined a
$45.00 kiln shelf because there's now a black six-inch diameter circle
of copper left from the assemblage that is eating its way down through
the shelf. And students wonder why they had pink blushes on their white
pots! Errrrrrgh!
Pat Colyar, long-suffering Ceramics Tech at the Kirkland Arts Center
in Kirkland. WA, hoping to make it thru to the end of Fall Quarter
without throttling someone......
____________________________________________________________________________
__
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.
--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.409 / Virus Database: 268.14.6/536 - Release Date: 11/16/2006
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.409 / Virus Database: 268.14.6/536 - Release Date: 11/16/2006
______________________________________________________________________________
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.
Pat Colyar on thu 16 nov 06
Everyone considering trying this technique, PLEASE notice that Nathan
described thoroughly layering the slip & paper to seal the bottom of the
paper saggar. One of our instructors did not do this, and ruined a
$45.00 kiln shelf because there's now a black six-inch diameter circle
of copper left from the assemblage that is eating its way down through
the shelf. And students wonder why they had pink blushes on their white
pots! Errrrrrgh!
Pat Colyar, long-suffering Ceramics Tech at the Kirkland Arts Center
in Kirkland. WA, hoping to make it thru to the end of Fall Quarter
without throttling someone......
claybair on thu 16 nov 06
Hey Pat,
Perhaps an additional precaution of a slab of clay
under the sealed paper saggar would be helpful.
A student in a class I was in fired several low fired clay pieces....to ^10.
She said...."I thought it was high fired clay.... they (clay store) just
gave me a bag"
Duh! This was not person totally new to clay... just one who was very
inattentive.
Several shelves were ruined , the bottom of the kiln needed repair
and no firing for several weeks. After that disaster we used clay cookies
brushed with kiln wash under everything and used elmers glue to secure them.
She did replace the shelves but it was a big mess!
Gayle Bair
Bainbridge Island, WA
Tucson, AZ
http://claybair.com
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG]On Behalf Of Pat Colyar
Sent: Thursday, November 16, 2006 8:58 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Paper Bag Saggar - Warning!
Everyone considering trying this technique, PLEASE notice that Nathan
described thoroughly layering the slip & paper to seal the bottom of the
paper saggar. One of our instructors did not do this, and ruined a
$45.00 kiln shelf because there's now a black six-inch diameter circle
of copper left from the assemblage that is eating its way down through
the shelf. And students wonder why they had pink blushes on their white
pots! Errrrrrgh!
Pat Colyar, long-suffering Ceramics Tech at the Kirkland Arts Center
in Kirkland. WA, hoping to make it thru to the end of Fall Quarter
without throttling someone......
____________________________________________________________________________
__
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.
--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.409 / Virus Database: 268.14.6/536 - Release Date: 11/16/2006
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.409 / Virus Database: 268.14.6/536 - Release Date: 11/16/2006
Pat Southwood on thu 16 nov 06
Hi Chaps,
I would sit the paper sagger in a proper saggar.
Pat Southwood
----- Original Message -----
From: "Pat Colyar"
To:
Sent: Thursday, November 16, 2006 4:57 PM
Subject: Re: Paper Bag Saggar - Warning!
> Everyone considering trying this technique, PLEASE notice that Nathan
> described thoroughly layering the slip & paper to seal the bottom of the
> paper saggar. One of our instructors did not do this, and ruined a
> $45.00 kiln shelf because there's now a black six-inch diameter circle
> of copper left from the assemblage that is eating its way down through
> the shelf. And students wonder why they had pink blushes on their white
> pots! Errrrrrgh!
>
> Pat Colyar, long-suffering Ceramics Tech at the Kirkland Arts Center
> in Kirkland. WA, hoping to make it thru to the end of Fall Quarter
> without throttling someone......
>
> ______________________________________________________________________________
> 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.
>
>
Tom Sawyer on fri 17 nov 06
If one is worried about ruining the shelf, another option might be to place
the bag on a slab of clay.
Tom Sawyer
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Pat Southwood
Sent: Thursday, November 16, 2006 3:06 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Paper Bag Saggar - Warning!
Hi Chaps,
I would sit the paper sagger in a proper saggar.
Pat Southwood
----- Original Message -----
From: "Pat Colyar"
To:
Sent: Thursday, November 16, 2006 4:57 PM
Subject: Re: Paper Bag Saggar - Warning!
> Everyone considering trying this technique, PLEASE notice that Nathan
> described thoroughly layering the slip & paper to seal the bottom of the
> paper saggar. One of our instructors did not do this, and ruined a
> $45.00 kiln shelf because there's now a black six-inch diameter circle
> of copper left from the assemblage that is eating its way down through
> the shelf. And students wonder why they had pink blushes on their white
> pots! Errrrrrgh!
>
> Pat Colyar, long-suffering Ceramics Tech at the Kirkland Arts Center
> in Kirkland. WA, hoping to make it thru to the end of Fall Quarter
> without throttling someone......
>
>
____________________________________________________________________________
__
> 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.
| |
|
