Christie Huff on fri 21 jul 06
I have broken a few pieces latelety due to my kiln posts sticking to my
shelves. When I remove the shelf, the stuck kiln post releases itself half
way up the kiln and comes crashing down on the pottery beneath! I have a
top loading kiln, so I can't see the bottom of the shelf when I am
removing it. My kiln is 2 years old, as are the shelves and posts. This
has just been happening recently. Is there any type of wash I can put on
the shelves or posts to prevent them from sticking together?
Thanks,
Christie Huff
Carrollton, MS
www.arpottery.com
Marcia Selsor on fri 21 jul 06
I just keep my posts 'tips covered in kiln wash..same as shelves.
Marcia Selsor
marciaselsor.com
On Jul 21, 2006, at 10:38 AM, Christie Huff wrote:
> I have broken a few pieces latelety due to my kiln posts sticking
> to my
> shelves. When I remove the shelf, the stuck kiln post releases
> itself half
> way up the kiln and comes crashing down on the pottery beneath! I
> have a
> top loading kiln, so I can't see the bottom of the shelf when I am
> removing it. My kiln is 2 years old, as are the shelves and posts.
> This
> has just been happening recently. Is there any type of wash I can
> put on
> the shelves or posts to prevent them from sticking together?
>
> Thanks,
> Christie Huff
> Carrollton, MS
> www.arpottery.com
>
jlutz on fri 21 jul 06
I have the same problem and kiln washed the ends of my posts but that
still hasn't stopped them from sticking. I now tilt the shelves
before lifting them which helps to break the bond. I also run my
fingers under the shelf at the position of the posts to make sure
they have released.
Jean Lutz
Prescott, AZ
At 10:25 AM 7/21/2006, you wrote:
>I just keep my posts 'tips covered in kiln wash..same as shelves.
>Marcia Selsor
>marciaselsor.com
>On Jul 21, 2006, at 10:38 AM, Christie Huff wrote:
Taylor Hendrix on fri 21 jul 06
oops "kiln post" I meant, "any stubborn kiln post."
t in r tx
On 7/21/06, Taylor Hendrix wrote:
> I don't wash the ends of my posts, but when I unload my half shelves,
> I give them a little rock back and forth befor lifting them to help
> release any stubborn kiln shelf then I make sure and clean off the
> surfaces for next time.
>
> Taylor, in Rockport
>
> > On Jul 21, 2006, at 10:38 AM, Christie Huff wrote:
> >
> > > I have broken a few pieces latelety due to my kiln posts sticking
> > > to my
> > > shelves. When I remove the shelf, the stuck kiln post releases
> > > itself half
> > > way up the kiln and comes crashing down on the pottery beneath! ... Is there any type of wash I can
> > > put on
> > > the shelves or posts to prevent them from sticking together?
Taylor Hendrix on fri 21 jul 06
I don't wash the ends of my posts, but when I unload my half shelves,
I give them a little rock back and forth befor lifting them to help
release any stubborn kiln shelf then I make sure and clean off the
surfaces for next time.
Taylor, in Rockport
> On Jul 21, 2006, at 10:38 AM, Christie Huff wrote:
>
> > I have broken a few pieces latelety due to my kiln posts sticking
> > to my
> > shelves. When I remove the shelf, the stuck kiln post releases
> > itself half
> > way up the kiln and comes crashing down on the pottery beneath! ... Is there any type of wash I can
> > put on
> > the shelves or posts to prevent them from sticking together?
claybair on fri 21 jul 06
Christy,
A few suggestions....
Clean off your posts and dip them in some
kiln wash.
When you remove your shelves from the kiln
place your fingers under the shelf where the
posts are place and slightly tilt the shelf up. You will be able to tell
if your post is stuck as it will lift up with the shelf. You can
do this with all the posts before you lift the shelf. Most of
the time you can loosen the post(s) so it/they remain(s) on the lower shelf.
If not you can hold it in place with your fingers.
Make sure the shelves do not have bits of glaze and have kiln wash on them
on them before you place them into the kiln.
Gayle Bair
Bainbridge Island, WA
Tucson, AZ
http://claybair.com
-----Original Message-----
From:Christie Huff
I have broken a few pieces latelety due to my kiln posts sticking to my
shelves. When I remove the shelf, the stuck kiln post releases itself half
way up the kiln and comes crashing down on the pottery beneath! I have a
top loading kiln, so I can't see the bottom of the shelf when I am
removing it. My kiln is 2 years old, as are the shelves and posts. This
has just been happening recently. Is there any type of wash I can put on
the shelves or posts to prevent them from sticking together?
Thanks,
Christie Huff
Carrollton, MS
www.arpottery.com
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.394 / Virus Database: 268.10.3/395 - Release Date: 7/21/2006
Christie Huff on fri 21 jul 06
I have a glaze load comming out later today. I have an order for 15
platters that I am supposed to deliver Monday. I made 18 just in case, 2
cracked during drying and I broke 1 unloading the bisque fire (stupid kiln
post!). Down to 15 now so if I have a kiln post accident this time then I
won't have the full order complete by Monday. Maybe this time I should get
my husband to hold the shelf in place for me while I feel around the edges
before lifting it out?
Does the teperature have anything to do with it? I'm impatient....I
alway's unload once it's down to 500 degrees or so, sometimes a little
higher. Should I let the kiln cool down all the way so maybe the posts
will contract and release?
Thanks,
Christie Huff
Carrollton, MS
www.arpottery.com
clennell on fri 21 jul 06
Gang: For those of you that can't afford ITC 100 to dip your posts in here
is what we do. Fill a plate with kyanite/ probably silica sand or grog
would do. Fill another plate with water and put a sponge in it. When loading
your kiln touch the end of your kiln post on the wet sponge then dip it in
the kyanite/sand/grog. the posts do not stick to your shelves. Cheap and
easy just like me.
Best,
tony
Erika Rogers on fri 21 jul 06
Have been wondering about this - can I just put/sprinkle a layer of grog on
top of the kiln washed shelves for added protection?
Thanks, Erika Rogers
----- Original Message -----
From: "clennell"
To:
Sent: Friday, July 21, 2006 7:16 PM
Subject: Re: Kiln posts sticks to shelves
> Gang: For those of you that can't afford ITC 100 to dip your posts in
here
> is what we do. Fill a plate with kyanite/ probably silica sand or grog
> would do. Fill another plate with water and put a sponge in it. When
loading
> your kiln touch the end of your kiln post on the wet sponge then dip it in
> the kyanite/sand/grog. the posts do not stick to your shelves. Cheap and
> easy just like me.
> Best,
> tony
>
>
____________________________________________________________________________
__
> 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.
>
Bonnie Staffel on sat 22 jul 06
Hi Christie,
If you give your shelf a little wiggle before you lift it up, it usually
frees the post. Otherwise, you could paint a mixture of alumina and water
on both ends and they shouldn't stick.
Regards,
Bonnie Staffel
http://webpages.charter.net/bstaffel/
DVD Throwing with Coils and Slabs
DVD Beginning Processes
Charter Member Potters Council
William & Susan Schran User on sat 22 jul 06
On 7/21/06 4:36 PM, "Christie Huff" wrote:
> Does the teperature have anything to do with it? I'm impatient....I
> alway's unload once it's down to 500 degrees or so, sometimes a little
> higher. Should I let the kiln cool down all the way so maybe the posts
> will contract and release?
About the temperature when unloading, more cooling will not affect whether a
shelf will stick, but you are putting greater stress on the kiln furniture
and pots when the kiln is "500 degrees or so".
Have patience, wait until it's cool enough that you can touch everything
with your bare hands.
When you get ready to lift a shelf, give a bit of a "shake rattle and roll"
to loosen the shelf from the posts.
-- William "Bill" Schran
Fredericksburg, Virginia
wschran@cox.net
wschran@nvcc.edu
Lee Love on sat 22 jul 06
This is a "technique " problem or the lack of the craftsmans
attention.. Never expect the post not to stick to the shelf, then
you will never drop one on a pot. At my teacher's work shop,
nobody wanted to drop a post on a $30,000.00 pot, so they would tap
the shelf where the post was, to loosen it and check carefully for
stuck posts. If you can't "eyeball it", feel each spot under the
shelf before you lift the shelf, tipping the shelf to make a space
under the post you are checking. I will tap the stuck post on the
shelf below, and that will usually loosen it. If it won't, it is
safe to take with the shelf.
--
Lee in Mashiko, Japan
http://mashiko.org
My google Notebooks:
http://tinyurl.com/e5p3n
"The accessibility of the handmade object in today's world seems vital
and radical, and hopefully tempers our hunger for 'progress' and
rationality" - , Michael Kline
Richard Aerni on sun 23 jul 06
I haven't seen all the replies, but here is what I do...
When stacking shelves on the posts, I roll a ball of wet clay in a saucer
of alumina hydrate, then set the coated ball on top of the kiln post. The
shelf is placed on top, and the ball not only separates the shelf from the
post, but also cushions and levels it. Simple and effective...
Best,
Richard Aerni
Lee Love on sun 23 jul 06
On 7/23/06, Richard Aerni wrote:
> When stacking shelves on the posts, I roll a ball of wet clay in a saucer
> of alumina hydrate, then set the coated ball on top of the kiln post. The
> shelf is placed on top, and the ball not only separates the shelf from the
> post, but also cushions and levels it. Simple and effective...
Post will still stick, even with these wads, especially in a
woodfiring or vapor firing. The craftsman has to be responsible for
checking if the posts are sticking.
--
Lee in Mashiko, Japan
http://mashiko.org
My google Notebooks:
http://tinyurl.com/e5p3n
"The accessibility of the handmade object in today's world seems vital
and radical, and hopefully tempers our hunger for 'progress' and
rationality" - , Michael Kline
| |
|
