Richard Gralnik on fri 22 mar 96
Here are some kiln wash recipes posted to clayart at one time or another...
(Have we really been around this long?)
Richard
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From @UKCC.UKY.EDU:owner-clayart@UKCC.UKY.EDU Fri May 20 03:44:38 1994
Date: Fri, 20 May 1994 06:31:56 EDT
Reply-To: Ceramic Arts Discussion List
Sender: Ceramic Arts Discussion List
From: "Karl P. Platt" <71562.1555@COMPUSERVE.COM>
Subject: RECIPE: Karl's Killer Kiln Wash
X-To: Clayart
To: Multiple recipients of list CLAYART
Content-Length: 584
The composition below was optimised for glass fusing, a process which places
glass directly on the material and poses a strong potential for adhesion. It
should resist anything ceramic firing would toss before it.
Kaolin 25
Ball Clay 15
Silica (200M) 40
ZrSiO4 20
Additionally, one could add a small bit of colloidal Al2O3, which I know to be
effective for fusing.
Mix the above in H2O to an SG of 1.8 and apply by brushing to a dampened kiln
shelf. Dampening tends to prevent the material from diving into pores in the
shelf, which makes removal easier.
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From @uga.cc.uga.edu:owner-clayart@UKCC.UKY.EDU Tue Jan 31 18:35:43 1995
Date: Tue, 31 Jan 1995 20:48:03 EST
Reply-To: Ceramic Arts Discussion List
Sender: Ceramic Arts Discussion List
From: "Karl P. Platt" <71562.1555@COMPUSERVE.COM>
Subject: RECIPE: Karl's Killer Kiln Wash
X-To: Petersen Dawn
To: Multiple recipients of list CLAYART
Content-Length: 401
What you need to use is Karl's Killer Kilnwash ;)
Material Wt%
Kaolin 30
OM4 10
Ultrox 40
Flint 20
CMC .1
Weigh water to 55 wt% of the solids
Dissolve 0.1 wt% of the solids weight of CMC into the water
Sift in the clays and let them slake
Stir and add in the Ultrox and flint.
Apply by brushing or spraying on to a slightly dampened kiln shelf.
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From owner-clayart@UKCC.UKY.EDU Thu Sep 1 11:11:20 1994
Date: Thu, 1 Sep 1994 12:54:08 CST
Reply-To: Ceramic Arts Discussion List
Sender: Ceramic Arts Discussion List
From: LOWELL BAKER
Organization: The University of Alabama
Subject: kiln wash
X-To: CLAYART@UKCC.uky.edu
To: Multiple recipients of list CLAYART
Content-Length: 471
For years when I was salting I sifted silica onto the shelf.
carefully rubbing the excess from the edges with my thumb. Watch for
sharp spots. I would think that this would solve your problems. Keep
that air and dust moving away from you.
another kiln wash that I have advocated for years is 100% calcium-
aluminate cement. it sticks to the shelves and nothing will stick to
it. it won't salt and it is a great refractory binder. test your
brand first..... Lowell
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From @uga.cc.uga.edu:owner-clayart@UKCC.UKY.EDU Sat Feb 11 12:42:18 1995
Date: Sat, 11 Feb 1995 14:24:19 -0600
Reply-To: Ceramic Arts Discussion List
Sender: Ceramic Arts Discussion List
From: Louis Howard Katz
Subject: RECIPE: Kiln Wash
To: Multiple recipients of list CLAYART
Content-Length: 696
I have been using a very simple kiln wash on Silicon carbide and other
shelves for some time now. I like it. It stays where it is put but is not
too hard to remove. Thick layers can be applied.
Parts by volume:
1 Kaolin (EPK)
1 Alumina Hydrate
1 Silica sand fine.
If the sand is fine enough large platters don't hang up on the sand
particles, but if you throw lots of large forms and don't wad it might
not be the wash for you.
My favorite wadding recipe:
1 Alumina Hydrate
2 Kaolin
2 Fire Clay
5 Silica Sand Coarse
Cheap and easy to get off shelves
Make sure the sand for both of these recipes is a good clean white silica
sand. Much of the sand down here is contaminated with fluxes.
Louis
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From @uga.cc.uga.edu:owner-clayart@UKCC.UKY.EDU Sat Feb 11 18:13:26 1995
Date: Sat, 11 Feb 1995 19:56:04 -0500
Reply-To: Ceramic Arts Discussion List
Sender: Ceramic Arts Discussion List
From: Linda Arbuckle
Subject: RECIPE: kiln wash
To: Multiple recipients of list CLAYART
Content-Length: 305
At U.F. we like
1/3 EPK
1/3 calcined kaolin
1/3 silica.
The calcined kaolin seems to help it stay on better, as it's pre-shrunk.
Linda
Linda Arbuckle E-Mail: ARBUCK@NERVM.nerdc.ufl.edu
Asst. Prof., Ceramics (904) 392-0228
Univ. of FL, Dept. of Art
302 FAC
Gainesville, FL 32611
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Arnold Howard on tue 4 jan 00
Dear All:
I am looking for a good kiln wash recipe. I am using
alumina hydrate and clay. What do you prefer?
Thanks,
Arnold Howard
Paragon Industries, Inc.
__________________________________________________
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
http://messenger.yahoo.com
Dale A. Neese on wed 5 jan 00
I used the recipe that Steve Branfman recommended firing to cone 10+
reduction:
2 parts EPKaolin
2 parts Flint
1 part Alumina Hydrate
Mix and let set awhile, mix again. Sieve. Spray.
What makes the difference is spraying the kiln wash on the shelves instead
of brushing. I just bought a compressor and tried the sprayed application.
I use the kiln wash only on the bottom shelves that remain in the Olsen
Updraft after the firing. These shelves reach 10+ and never flaked off. I
sieve the remaining shelves with flint which allows them to be turned over
for the next firing.
Dale Tex
Dave Finkelnburg on wed 5 jan 00
Arnold,
I think you are on the right track! The recipe which I use I found in
the ClayArt archives. I believe Ron Roy posted it. I think he mentioned
not using silica in a wash when firing porcelain. I don't have problems
with my kiln posts sticking to the shelves anymore, or with the wash flaking
off. I fire to cone 5, electric, oxidation.
Alumina 80
EPK 10
Ball Clay 10
Bentonite 1
Ron suggested applying this by spraying it onto the shelves with an
ordinary garden sprayer. He mentioned he perceived a benefit in the pebbly
surface of the sprayed wash. I sprayed my shelves with my compressor, spray
gun with it set on low pressure. I think the spray application helps.
Dave Finkelnburg
-----Original Message-----
From: Arnold Howard
To: CLAYART@LSV.UKY.EDU
Date: Tuesday, January 04, 2000 1:58 PM
Subject: Kiln wash recipes
----------------------------Original message----------------------------
Dear All:
I am looking for a good kiln wash recipe. I am using
alumina hydrate and clay. What do you prefer?
Thanks,
Arnold Howard
Paragon Industries, Inc.
__________________________________________________
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
http://messenger.yahoo.com
ferenc jakab on wed 5 jan 00
Aluminium Hydrate, Kaolin and extra silica.
Jim Cullen on thu 6 jan 00
I just used Bailey's kiln wash recipe in my last firing and it worked just
fine.
EPK 40
Silica 40
Alum. Hydrate 20
2-3 coats, brushed on.
KEEP CENTERED
Cullen
Naperville, Illinois
Stephen Mills on thu 6 jan 00
My favourite 2 parts by weight Al. Hyd. to 1 of China Clay
Steve
Bath
UK
In message , Arnold Howard writes
>----------------------------Original message----------------------------
>Dear All:
>
>I am looking for a good kiln wash recipe. I am using
>alumina hydrate and clay. What do you prefer?
>
>Thanks,
>
>Arnold Howard
>Paragon Industries, Inc.
>__________________________________________________
>Do You Yahoo!?
>Talk to your friends online with Yahoo! Messenger.
>http://messenger.yahoo.com
>
--
Steve Mills
Bath
UK
home e-mail: stevemills@mudslinger.demon.co.uk
work e-mail: stevemills@bathpotters.demon.co.uk
own website: http://www.mudslinger.demon.co.uk
BPS website: http://www.bathpotters.demon.co.uk
Tel: **44 (0)1225 311699
Fax: **44 (0)870 0526466
Des Howard on sat 8 jan 00
Arnold
We use Zircon flour 90%, Kaolin 10% as a kiln shelf/prop wash
NB use thinly, it is a wash not a paint.
Des
Des & Jan Howard
Lue Pottery
LUE NSW 2850
Australia
Arnold Howard wrote:
> ----------------------------Original message----------------------------
> Dear All:
>
> I am looking for a good kiln wash recipe. I am using
> alumina hydrate and clay. What do you prefer?
>
> Thanks,
>
> Arnold Howard
> Paragon Industries, Inc.
> __________________________________________________
> Do You Yahoo!?
> Talk to your friends online with Yahoo! Messenger.
> http://messenger.yahoo.com
Edward Cowell on thu 13 jan 00
Here's a great kiln wash recipe that I found on Clayart a couple of years
ago - extremely strong, doesn't powder on the shelf and can be used to
patch gouges. For the latter, you must apply successive layers, letting
them dry in between each application.
40 Alumina Hydrate
8 Kyanite - 35 mesh
30 EPK
22 Silica
Eleanora Eden on sun 21 oct 01
Having recollected that 1 part china clay (epk) and 1 part alumina hydrate,
by weight, was the kiln wash recipe in my past, I dutifully mixed up a
batch and used it. Cracked off on the majority of shelves and bits of
shelves I used it on but for afew it worked fine. Moisture was perfect on
those, I guess.
So I checked my clayart archives for recipes, deleted repeats, and this is
what I came up with. One interesting observation is that not only was epk
2, silica 2 , alum 1 the big fave, it is seen as both by weight and by
volume. Nice.
So since I went to the effort to make up this list for myself here it is.
Eleanora
1.
I just used Bailey's kiln wash recipe in my last firing and it worked just
fine:
EPK 40
Silica 40
Alum. Hydrate 20
........................................
2.
I've been using this recipe for 10 years: one part EPK, one part
FLINT, and 1/2 part ALUMINA HYDRATE. It's quick and easy because you don't
have to weigh anything - just measure by volume
................................................
3.
Alumina hydrate 2 parts with 1 part of china clay (which gives it
a bit of sticking power)
Cheers,
............................................................
4.
40 Alumina hydrate
30 EPK
8 Kyaniate (35 mesh)
22 Silica
Don Jung said " It holds on great but can be rubbed easily with a silicon
carbide brick to remove glaze bits. It also fills in any irregularities and
the rubbing action of the brick gets it nice and even. Happy to say that I
haven't had to chisel or grind the shelves anymore. Haven't had any flaking
or peeling, so we're just re-applying over rubbed thin or exposed areas."
................................................
5.
5 parts Kaolin
5 parts silica
2 parts alumina hydrate
.....................................................
6.
Alumina 80
EPK 10
Ball Clay 10
Bentonite 1
..........................................................
Eleanora Eden 802 869-2003
Paradise Hill eeden@vermontel.net
Bellows Falls, VT 05101 www.eleanoraeden.com
Ron Roy on mon 22 oct 01
Hi Eleanora,
Just a small warning - if you are firing porcelain don't put any silica in
your wash - the last one in this post is closest to the one I use and I use
alumina hydrate and I spray it on - I have heard a roller works well too.
The sprayed works very well because of the pebble surface.
RR
>Having recollected that 1 part china clay (epk) and 1 part alumina hydrate,
>by weight, was the kiln wash recipe in my past, I dutifully mixed up a
>batch and used it. Cracked off on the majority of shelves and bits of
>shelves I used it on but for afew it worked fine. Moisture was perfect on
>those, I guess.
>
>So I checked my clayart archives for recipes, deleted repeats, and this is
>what I came up with. One interesting observation is that not only was epk
>2, silica 2 , alum 1 the big fave, it is seen as both by weight and by
>volume. Nice.
>
>So since I went to the effort to make up this list for myself here it is.
>
>Eleanora
>
>1.
>I just used Bailey's kiln wash recipe in my last firing and it worked just
>fine:
>
>EPK 40
>Silica 40
>Alum. Hydrate 20
>........................................
>2.
> I've been using this recipe for 10 years: one part EPK, one part
>FLINT, and 1/2 part ALUMINA HYDRATE. It's quick and easy because you don't
>have to weigh anything - just measure by volume
>................................................
>3.
>Alumina hydrate 2 parts with 1 part of china clay (which gives it
>a bit of sticking power)
>Cheers,
>............................................................
>4.
>40 Alumina hydrate
>30 EPK
>8 Kyaniate (35 mesh)
>22 Silica
>
>Don Jung said " It holds on great but can be rubbed easily with a silicon
>carbide brick to remove glaze bits. It also fills in any irregularities and
>the rubbing action of the brick gets it nice and even. Happy to say that I
>haven't had to chisel or grind the shelves anymore. Haven't had any flaking
>or peeling, so we're just re-applying over rubbed thin or exposed areas."
>
>................................................
>5.
> 5 parts Kaolin
> 5 parts silica
> 2 parts alumina hydrate
>.....................................................
>6.
> Alumina 80
> EPK 10
> Ball Clay 10
> Bentonite 1
>..........................................................
Ron Roy
RR# 4
15084 Little Lake Rd..
Brighton,
Ontario, Canada
KOK 1H0
Residence 613-475-9544
Studio 613-475-3715
Fax 613-475-3513
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