Loren JOnes on mon 1 dec 08
I will share my experience with you as well. I lived in Portland Oregon for years. I ran a parks program there. I had a whole bunch of Advancers that I had bought directly from Smith-Sharpe. Not knowing about this "problem" I never took safeguards with my shelves. I would hose down the kiln yard weekly getting the shelves plenty wet. To clean off glaze drips I would spray the shelves with a spray bottle and grind them. I would quite often load them right into the kiln and fire it off that night. I never - never had a problem with them blowing up. I had two crack in a firing once but never had any trouble with them. I fired two 30 cuft kilns loaded up to the top with these shelves weekly for 10 years. Thats over 500 firings! I dont know what accounts for my success with them but thats my story and I'm sticking to it. Loren Jones http://www.lojoclayworks.com
________________________________
From: Wyndham Dennison
To: CLAYART@LSV.CERAMICS.ORG
Sent: Monday, December 1, 2008 3:52:43 PM
Subject: Question on Advancer Shelves
A fellow potter asked me to post this question for him.
He may have the option of getting some used Advancer shelves 12x24 and
was wondering from those that use them about moisture problems. If these
have been out in the weather, will moisture get into them and may cause
them to explode. I had several used selves years ago and on the first
firing, they blew up taking the arch out of a 10 cu ft centenary gas
kiln. I thought I was firing too quickly but have heard others that have
had problem.
If they are used shelves can they be slow dried and used or does the
moisture remain a problem.
We're hoping someone who has had experience with used Advancer might
give some insight. Wyndham
Wyndham Dennison on mon 1 dec 08
A fellow potter asked me to post this question for him.
He may have the option of getting some used Advancer shelves 12x24 and
was wondering from those that use them about moisture problems. If these
have been out in the weather, will moisture get into them and may cause
them to explode. I had several used selves years ago and on the first
firing, they blew up taking the arch out of a 10 cu ft centenary gas
kiln. I thought I was firing too quickly but have heard others that have
had problem.
If they are used shelves can they be slow dried and used or does the
moisture remain a problem.
We're hoping someone who has had experience with used Advancer might
give some insight. Wyndham
Hank Murrow on mon 1 dec 08
On Dec 1, 2008, at 2:52 PM, Wyndham Dennison wrote:
> A fellow potter asked me to post this question for him.
> He may have the option of getting some used Advancer shelves 12x24 and
> was wondering from those that use them about moisture problems. If
> these
> have been out in the weather, will moisture get into them and may
> cause
> them to explode. I had several used selves years ago and on the first
> firing, they blew up taking the arch out of a 10 cu ft centenary gas
> kiln. I thought I was firing too quickly but have heard others that
> have
> had problem.
> If they are used shelves can they be slow dried and used or does the
> moisture remain a problem.
> We're hoping someone who has had experience with used Advancer might
> give some insight. Wyndham
Well Wyndham;
I keep my Advancers in a cupboard that has a light bulb mounted under
the slats that support the shelves so they are always kept dry. I use
alumina oxide on the shelves just distributed evenly over the surface
of the shelf. No wash. Love 'em!
Cheers, Hank in Eugene
Kris Bliss on mon 1 dec 08
first, let me say i love my advancers, but i am soooo anal about
keeping them dry... i have a rolly shelf cart i bring in from
the kiln shed after unloading and don't let them sit loaded when
it is freezing out...(condensation)..from wet pots..and don't load
wet pots when it is freezing. (5 months of the year)...
that said, i have paid attention to what has been said about
getting the little suckers damp or exposed to damp or even humid
conditions..
what i have been able to gleen from said posts is......
it is possible to dry them out in the bisque kiln ,,, so slow..
slow.... very slow and hold at less that 200 F..
slow...
hope that helps,
bliss where it is 4 degrees now... and we decided to load the kiln
tomarrow when it will warm up to hopefully 10 tomarrow (F)
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG]On Behalf Of Wyndham
Dennison
Sent: Monday, December 01, 2008 1:53 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Question on Advancer Shelves
A fellow potter asked me to post this question for him.
He may have the option of getting some used Advancer shelves 12x24 and
was wondering from those that use them about moisture problems. If these
have been out in the weather, will moisture get into them and may cause
them to explode. I had several used selves years ago and on the first
firing, they blew up taking the arch out of a 10 cu ft centenary gas
kiln. I thought I was firing too quickly but have heard others that have
had problem.
If they are used shelves can they be slow dried and used or does the
moisture remain a problem.
We're hoping someone who has had experience with used Advancer might
give some insight. Wyndham
June on tue 2 dec 08
I store my advancers on their long side in my studio on top of cardboard to separate them from the concrete floor. I don't kiln wash them - just spread a very thin layer of alumina on them and then use the flat of my thumb to remove it from around 1/2" of the edges.
When firing, I candle overnight; and when spraying soda, I try to avoid spraying directly on the shelves.
Regards,
June
http://www.shambhalapottery.com
http://shambhalapottery.blogspot.com
http://groups.yahoo.com/group/sodasaltfiring/
________________________________
From: Hank Murrow
To: CLAYART@LSV.CERAMICS.ORG
Sent: Monday, December 1, 2008 8:29:23 PM
Subject: Re: Question on Advancer Shelves
On Dec 1, 2008, at 2:52 PM, Wyndham Dennison wrote:
> A fellow potter asked me to post this question for him.
> He may have the option of getting some used Advancer shelves 12x24 and
> was wondering from those that use them about moisture problems. If
> these
> have been out in the weather, will moisture get into them and may
> cause
> them to explode. I had several used selves years ago and on the first
> firing, they blew up taking the arch out of a 10 cu ft centenary gas
> kiln. I thought I was firing too quickly but have heard others that
> have
> had problem.
> If they are used shelves can they be slow dried and used or does the
> moisture remain a problem.
> We're hoping someone who has had experience with used Advancer might
> give some insight. Wyndham
Well Wyndham;
I keep my Advancers in a cupboard that has a light bulb mounted under
the slats that support the shelves so they are always kept dry. I use
alumina oxide on the shelves just distributed evenly over the surface
of the shelf. No wash. Love 'em!
Cheers, Hank in Eugene
William & Susan Schran User on tue 2 dec 08
On 12/1/08 5:52 PM, "Wyndham Dennison" wrote:
> A fellow potter asked me to post this question for him.
> He may have the option of getting some used Advancer shelves 12x24 and
> was wondering from those that use them about moisture problems. If these
> have been out in the weather, will moisture get into them and may cause
> them to explode. I had several used selves years ago and on the first
> firing, they blew up taking the arch out of a 10 cu ft centenary gas
> kiln. I thought I was firing too quickly but have heard others that have
> had problem.
> If they are used shelves can they be slow dried and used or does the
> moisture remain a problem.
If the Advancer shelves were stored outside or other location where moisture
was allowed on them for an extended period of time, that is the problem. The
moisture gets in but can't all get out because the shelves have such a low
absorption rate.
There is a specific slow firing procedure for removing moisture from
Advancer shelves. I suggest a programmable electric kiln for this.
Here is the link on Smith-Sharpe web site detailing the moisture removal
process:
We use 12x24 Advancer shelves in our gas fired kiln at school. Kiln and
shelves are in an unconditioned building. They are stacked vertically on
small wooden skids and lean against the wall. I have come in to find them
covered in condensation, but if this is an occasional occurrence, you can
just wipe off the moisture and use them. It's the moisture getting on them
for an extended period of time you have to worry about.
Bill
--
William "Bill" Schran
wschran@cox.net
wschran@nvcc.edu
http://www.creativecreekartisans.com
| |
|
