search  current discussion  categories  materials - paper clay 

paperclay as kiln patch

updated sat 19 aug 06

 

Barbara Lewis on tue 15 aug 06


This past weekend I fired my gas kiln and noticed that one of the wedge =
bricks in the roof (roman arch kiln) was hanging down and apparently had =
broken. I pushed the brick up, used paperclay to patch around the seams =
and hold the brick up. The patch held beautifully and is incredibly =
strong. I have used paperclay in the past for patching soft bricks in =
the kiln. Just wanted to pass this on. Barbara

Lee Love on tue 15 aug 06


Barbara,

What was the clay body in your paper clay?

--

Lee in Mashiko, Japan
http://potters.blogspot.com/
"Let the beauty we love be what we do." - Rumi

Barbara Lewis on wed 16 aug 06


Hi Lee: the clay body was Helios porcelain. Barbara
----- Original Message -----
From: "Lee Love"
To:
Sent: Tuesday, August 15, 2006 10:20 PM
Subject: Re: paperclay as kiln patch


> Barbara,
>
> What was the clay body in your paper clay?
>
> --
>
> Lee in Mashiko, Japan
> http://potters.blogspot.com/
> "Let the beauty we love be what we do." - Rumi
>
> ______________________________________________________________________________
> 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.
>

Eric Suchman on wed 16 aug 06


fiberglass would be a fine toxic substitute for paper which was said
worked fine.
eric in oceanside


On Aug 16, 2006, at 6:32 AM, Lee Love wrote:

> On 8/16/06, Barbara Lewis wrote:
>> Hi Lee: the clay body was Helios porcelain. Barbara
>
> Thanks. What temp? I am wondering if fiberglass would be a good
> fiber substitute for brick patching purposes.
>
> --
>
> Lee in Mashiko, Japan
> http://potters.blogspot.com/
> "Let the beauty we love be what we do." - Rumi
>
> ______________________________________________________________________
> ________
> 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.

Lee Love on wed 16 aug 06


On 8/16/06, Barbara Lewis wrote:
> Hi Lee: the clay body was Helios porcelain. Barbara

Thanks. What temp? I am wondering if fiberglass would be a good
fiber substitute for brick patching purposes.

--

Lee in Mashiko, Japan
http://potters.blogspot.com/
"Let the beauty we love be what we do." - Rumi

Barbara Lewis on thu 17 aug 06


I fire to cone 10, but the porcelain patch can probably go higher. I forgot
to mention something. In this particular batch of paperclay, I had added
some ceramic fiber to the mix. However, in the past I've used straight
paperclay (no ceramic fiber) for patching. I accessed the information about
the ceramic fiber from Graham Hay's website. Barbara
----- Original Message -----
From: "Lee Love"
To:
Sent: Wednesday, August 16, 2006 9:32 AM
Subject: Re: paperclay as kiln patch


> On 8/16/06, Barbara Lewis wrote:
>> Hi Lee: the clay body was Helios porcelain. Barbara
>
> Thanks. What temp? I am wondering if fiberglass would be a good
> fiber substitute for brick patching purposes.
>
> --
>
> Lee in Mashiko, Japan
> http://potters.blogspot.com/
> "Let the beauty we love be what we do." - Rumi
>
> ______________________________________________________________________________
> 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.
>

Lee Love on thu 17 aug 06


On 8/16/06, Eric Suchman wrote:
> fiberglass would be a fine toxic substitute for paper which was said
> worked fine

??? See below Eric. ???

On 8/17/06, Barbara Lewis wrote:

> I fire to cone 10, but the porcelain patch can probably go higher. I forgot
> to mention something. In this particular batch of paperclay, I had added
> some ceramic fiber to the mix.

Thanks Barbara. This makes sense. A more refractory mix (compared to
a porcelain body) could be mixed for a wood fired kiln. Have
bookmarked Graham's webpage.

Thanks again,

--

Lee in Mashiko, Japan
http://potters.blogspot.com/
"Let the beauty we love be what we do." - Rumi

Ron Roy on fri 18 aug 06


Hi Barbara,

I would not recommend using a porcelain body to repair kiln bricks - too
much flux involved - better to use kaolin and grog - or ground up soft fire
brick instead of grog.

I do think the paper will help but I would recommend you make some up with
kaolin.

RR


Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0

Arnold Howard on fri 18 aug 06


From: "Ron Roy"
> I would not recommend using a porcelain body to repair
> kiln bricks - too
> much flux involved - better to use kaolin and grog - or
> ground up soft fire
> brick instead of grog.

At Paragon we are finding that a mixture of powdered
firebrick and kiln cement makes a good patch. Add just
enough cement to hold the powdered firebrick together.

You can obtain the powder from any kiln manufacturer. It is
a byproduct from cutting firebricks.

Sincerely,

Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com