[Clayart] Advancer Shelves that get wet
Tammy Shapiro
It’s a topic I need to share with some of the potters at our league of why you don’t let Advancers get wet and why you do not fire with them in that condition.
Hope everyone does not mind going over this again and I greatly appreciate the help,
Tammy
vpit...@dtccom.net
Others will respond as well. Advancers, like high-fired pottery, do still have a very small absorption capability, and like high-fired pottery, once they have absorbed moisture, it cannot be expelled quickly. Instead, if heated quickly, it builds up internal pressure with potentially catastrophic results. Occasionally during my teaching career, a student would look at one of their pots that had been in regular use at home, and decide that another firing would improve it. If they didn't know better, they would slip it into a glaze firing. If the pot had been used in contact with water, as with a teapot, it would explode in the glaze firing with enough force to break shelves, damage the inside of the kiln, and destroy most of the other pots in the firing. The same thing happens with wet Advancer shelves. If they do get wet, just put them in an electric kiln and slowly bring them up to 1000 degrees over several days. I looked on www.kilnshelf.com and could not find specific instructions for the heating ramp when drying out Advancers. When I got my Advancers from Jim Brown, I put them in my electric kiln and preheated them below 200 degrees for 24 hours, and then did a slow-bisque to cone-022. I've fired them to cone-8 in my soda kiln a bunch of times, and they are wonderful.
- Vince
Vince Pitelka
Potter, Writer, Teacher
Chapel Hill, NC
vpit...@dtccom.net
www.vincepitelka.com
https://chathamartistsguild.org/
William Schran
https://kilnshelf.com/category/faq/ that addresses all the possible
issues with Advancer shelves.
I have used Advancer shelves for years both with gas fired kilns in
unconditioned rooms and inside in electric kilns with no issues. I
never apply kiln wash, bu=ut do light dusting of alumina to prevent
plucking.
Bill
William Schran...@twc.com703-505-1617
-----------------------------------------From: "Tammy Shapiro"
To: "Clayart international pottery discussion forum"
Cc:
Sent: Wednesday February 9 2022 1:49:17PM
Subject: [Clayart] Advancer Shelves that get wet
I know this is a topic that has been covered many times in Clayart
before.
It’s a topic I need to share with some of the potters at our league
of why you don’t let Advancers get wet and why you do not fire with
them in that condition.
Hope everyone does not mind going over this again and I greatly
appreciate the help,
Tammy
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.clayartworld.com/pipermail/clayart/attachments/20220209/d6572549/attachment.htm>
vpit...@dtccom.net
I was frustrated that the FAQs at www.kilnshelf.com do not provide a specific heating schedule for drying out advancers. I thought it would be there, but couldn't find it. That's probably irrelevant now, because the schedule I mentioned in my previous post worked fine for me. The big 25x25 advancers that Jim Brown has are inside an unheated garage, but they were stored outside for a long time, so I expect that the moisture is still in there. I didn't want to take a chance.
Vince Pitelka
Potter, Writer, Teacher
Chapel Hill, NC
vpit...@dtccom.net
www.vincepitelka.com
https://chathamartistsguild.org/
-----Original Message-----
William Schran
procedure at one time but apparently when they updated their site they
removed the instructions and instead have this statement:If you know
or suspect that your shelves have water in them, you must follow the
dry-out schedule outlined in the Saint-Gobain Technical Bulletin
Warning “Storing and Drying Requirements for ADVANCER® Refractory
Components.” I [1]
I searched for the technical article but found the drying process on
this page:
https://shop.clay-planet.com/advancer-kiln-shelf-half-decagon.aspx
Bill
-----------------------------------------From: vpit...@dtccom.net
To: "William Schran", "Clayart international pottery discussion forum"
Cc:
Sent: Thursday February 10 2022 8:45:11AM
Subject: RE: [Clayart] Advancer Shelves that get wet
Hi Bill -
I was frustrated that the FAQs at www.kilnshelf.com do not provide a
specific heating schedule for drying out advancers. I thought it would
be there, but couldn't find it. That's probably irrelevant now,
because the schedule I mentioned in my previous post worked fine for
me. The big 25x25 advancers that Jim Brown has are inside an unheated
garage, but they were stored outside for a long time, so I expect that
the moisture is still in there. I didn't want to take a chance.
- Vince
Vince Pitelka
Potter, Writer, Teacher
Chapel Hill, NC
vpit...@dtccom.net
www.vincepitelka.com
https://chathamartistsguild.org/ [2]
-----Original Message-----
From: Clayart On Behalf Of William Schran
Sent: Wednesday, February 9, 2022 3:27 PM
To: 'Clayart international pottery discussion forum'
Subject: Re: [Clayart] Advancer Shelves that get wet
Tammy,Suggest you read this page on Kilnshelf.com :
https://kilnshelf.com/category/faq/ [3] that addresses all the
possible issues with Advancer shelves.
I have used Advancer shelves for years both with gas fired kilns in
unconditioned rooms and inside in electric kilns with no issues. I
never apply kiln wash, bu=ut do light dusting of alumina to prevent
plucking.
Bill
William Schran...@twc.com703-505-1617
-----------------------------------------From: "Tammy Shapiro"
To: "Clayart international pottery discussion forum"
Cc:
Sent: Wednesday February 9 2022 1:49:17PM
Subject: [Clayart] Advancer Shelves that get wet
I know this is a topic that has been covered many times in Clayart
before.
It’s a topic I need to share with some of the potters at our league
of why you don’t let Advancers get wet and why you do not fire with
them in that condition.
Hope everyone does not mind going over this again and I greatly
appreciate the help, Tammy
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
/>
Links:
------
[1]
https://kilnshelf.com/2018/01/13/ive-heard-that-advancer-shelves-can-explode-if-they-get-wet/
[2] https://chathamartistsguild.org/
[3] https://kilnshelf.com/category/faq/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.clayartworld.com/pipermail/clayart/attachments/20220210/f8e5ccac/attachment.htm>
vpit...@dtccom.net
- Vince
Vince Pitelka
Potter, Writer, Teacher
Chapel Hill, NC
<mailto:vpit...@dtccom.net> vpit...@dtccom.net
<http://www.vincepitelka.com/> www.vincepitelka.com
<https://chathamartistsguild.org/> https://chathamartistsguild.org/
From: William Schran <wsc...@twc.com <mailto:wsc...@twc.com> >
Sent: Thursday, February 10, 2022 9:36 AM
To: 'vpit...@dtccom.net' <vpit...@dtccom.net <mailto:vpit...@dtccom.net> >
Cc: 'Clayart international pottery discussion forum' <cla...@lists.clayartworld.com <mailto:cla...@lists.clayartworld.com> >
Subject: RE: [Clayart] Advancer Shelves that get wet
Vince,
Yes, Sith Sharpe on their Kilnshelf.com site did list the drying procedure at one time but apparently when they updated their site they removed the instructions and instead have this statement:
If you know or suspect that your shelves have water in them, you must follow the dry-out schedule outlined in the Saint-Gobain Technical Bulletin Warning “Storing and Drying Requirements for ADVANCER® Refractory Components.” <https://kilnshelf.com/2018/01/13/ive-heard-that-advancer-shelves-can-explode-if-they-get-wet/> I
I searched for the technical article but found the drying process on this page: https://shop.clay-planet.com/advancer-kiln-shelf-half-decagon.aspx
Bill
-----------------------------------------
From: vpit...@dtccom.net <mailto:vpit...@dtccom.net>
To: "William Schran", "Clayart international pottery discussion forum"
Cc:
Sent: Thursday February 10 2022 8:45:11AM
Subject: RE: [Clayart] Advancer Shelves that get wet
Hi Bill -
I was frustrated that the FAQs at www.kilnshelf.com <http://www.kilnshelf.com> do not provide a specific heating schedule for drying out advancers. I thought it would be there, but couldn't find it. That's probably irrelevant now, because the schedule I mentioned in my previous post worked fine for me. The big 25x25 advancers that Jim Brown has are inside an unheated garage, but they were stored outside for a long time, so I expect that the moisture is still in there. I didn't want to take a chance.
- Vince
Vince Pitelka
Potter, Writer, Teacher
Chapel Hill, NC
vpit...@dtccom.net <mailto:vpit...@dtccom.net>
www.vincepitelka.com <http://www.vincepitelka.com>
https://chathamartistsguild.org/
-----Original Message-----
From: Clayart <clayart...@lists.clayartworld.com <mailto:clayart...@lists.clayartworld.com> > On Behalf Of William Schran
Sent: Wednesday, February 9, 2022 3:27 PM
To: 'Clayart international pottery discussion forum' <cla...@lists.clayartworld.com <mailto:cla...@lists.clayartworld.com> >
Subject: Re: [Clayart] Advancer Shelves that get wet
Tammy,Suggest you read this page on Kilnshelf.com :
https://kilnshelf.com/category/faq/ that addresses all the possible issues with Advancer shelves.
I have used Advancer shelves for years both with gas fired kilns in unconditioned rooms and inside in electric kilns with no issues. I never apply kiln wash, bu=ut do light dusting of alumina to prevent plucking.
Bill
William Schran...@twc.com703-505-1617 <mailto:Schran...@twc.com703-505-1617>
-----------------------------------------From: "Tammy Shapiro"
To: "Clayart international pottery discussion forum"
Cc:
Sent: Wednesday February 9 2022 1:49:17PM
Subject: [Clayart] Advancer Shelves that get wet
I know this is a topic that has been covered many times in Clayart before.
It’s a topic I need to share with some of the potters at our league of why you don’t let Advancers get wet and why you do not fire with them in that condition.
Hope everyone does not mind going over this again and I greatly appreciate the help, Tammy
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.clayartworld.com/pipermail/clayart/attachments/20220209/d6572549/attachment.htm <https://lists.clayartworld.com/pipermail/clayart/attachments/20220209/d6572549/attachment.htm%3E%3Cbr> >
/>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.clayartworld.com/pipermail/clayart/attachments/20220210/db07a460/attachment.htm>