Poseyb@aol.com on mon 29 sep 97
Hi
I have a friend who is looking for a Crackle Glaze for cone 06-04. Can anyone
help?
Thanks
Posey
getalong littledoggies on tue 30 sep 97
There is one made by Gare called Matt Krakkle (KG-7042) that fires at
06
mew zack on wed 1 oct 97
1 made by GARE INC is MATT KRAKKLE KG-7042(cone 06) ph# is 508 373 9131
Maggie Woodhead on tue 15 sep 98
Hi there! Kia Ora!
Two of us here are trying to find good
crackle type glazes. We want a fairly large size crackle of any Shino
type.
The glazes tested so far have been:
Shino
80-Nepheline Syenite
20-Ball Clay
5-Salt This worked well but the crackle was
very fine
Large Crackle
85-Potash Feldspar
15-Talc
Almost a good glaze there was no crackle slight puckering one
side of the test.
Does anyone have suggestions as to the alterations or additions we can
make to these recipes to improve them?
Thanks in anticipation
----Best Wishes Maggie----
maggie@clear.net.NZ
Craig Martell on wed 16 sep 98
>Two of us here are trying to find good
>crackle type glazes. We want a fairly large size crackle of any Shino
>type.
Hello Maggie:
If the crackle is too fine, you can lower the expansion of the glaze a bit
to make it coarser. You can add silica to a shino type glaze to lower the
expansion but it will have an adverse effect to the "fire color" of the
glaze. If that's not a problem, add some silica using increases of about 5%
until you get the type of crackle you want.
You could substitute soda spar for the neph sy and drop the expansion some
too, or blend in some potash spar which has a lower expansion than NS or
soda spar. You can also leave the neph sy at the same level and line blend
in some spodumene, which has a low expansion due to the lithium.
With your other glaze, that doesn't craze, line blend it with a high
expander, neph sy or soda spar. This will produce crackle.
Once you achieve the glaze you are seeking, you may want to put it into the
Seger Formula and check durability if you are going to use it on domestic
pots for food use.
regards, Craig Martell-Oregon USA
John & Averil Cave on wed 16 sep 98
You might like to try this adaptation of Leach's glaze, it needs to be
applied thickly to obtain a widely spaced crackle and fired to Orton
Cone 9-10, in Oxidation or reduction. It starts to go glassy if fired
past Cone 10. I find it works well on a white stoneware or porcelain
clay.
China Clay 10
Dolomite 20
Silica 30
Potash Feldspar 40.
Averil Cave.
mel jacobson on thu 2 aug 01
if any of you out there in clayart land have any
mackenzie, cushing, ferguson, or hendley, clennell or the like crackled pots.
please send them to me now.
i will not eat off of them, and keep them safe.
i know, sacrifice.
but, someone has to keep you all safe.
mel
hamada and leach, kawai accepted too.
oh, woods and woo
From:
Minnetonka, Minnesota, U.S.A.
web site: http://www.pclink.com/melpots
logan johnson on sun 2 nov 03
Hi Shel,
altho I personally haven't tried this you might want to think about brewing a pot of double or even triple strength coffee (the type a spoon stands up in or even the type some people here in seattle pay 3.00 - 6.00 a cup for) but that's another thread & I won't rant on about that one today. anyway , we all know what coffee does to crackle glazes. you might even want to try heating the cup a bit (maybe in the oven) & filling the piece with coffee then let it soak for a while. As I said before I've never tried this but we DO know coffee is "safe" for humans and it DOES discolor cracks this is ALL SPECULATION but it does sound "right" at least to me. Besides, you sure aren't loosing much if it doesn't work! much luck!
Sheldon Bieber wrote:
Hi,
I have been using a white glaze at cone 10 reduction. The glaze is lovely but I would like to add some oxide to highlight the crackle. I tried wood stain with success but of course can't use it for food. I tried hot oxides, oxides on hot tiles and both but to no avail. Does anyone have any ideas? I would be willing to refire an oxide if it were visible. Are either tea or India permanent and safe to use.
Thank you,
Shel
______________________________________________________________________________
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.
Logan Johnson
Audeo Studios
"Carpe Argilla!!"
---------------------------------
Do you Yahoo!?
Exclusive Video Premiere - Britney Spears
Sheldon Bieber on sun 2 nov 03
Hi,
I have been using a white glaze at cone 10 reduction. The glaze is lovely but I would like to add some oxide to highlight the crackle. I tried wood stain with success but of course can't use it for food. I tried hot oxides, oxides on hot tiles and both but to no avail. Does anyone have any ideas? I would be willing to refire an oxide if it were visible. Are either tea or India permanent and safe to use.
Thank you,
Shel
Tony Ferguson on sun 2 nov 03
Sheldon,
Tea is safe. Ink I am not sure. I don't think I would want to taste or eat
ink. Tea is very easy and inexpensive. It has also been used for 1000's of
years.
Thank you.
Tony Ferguson
On Lake Superior, where the sky meets the Lake
Custom & Manufactured Kiln Design
Stoneware, Porcelain, Raku and more
by Coleman, Ferguson, Winchester...
http://www.aquariusartgallery.com
218-727-6339
315 N. Lake Ave
Apt 312
Duluth, MN 55806
----- Original Message -----
From: "Sheldon Bieber"
To:
Sent: Sunday, November 02, 2003 4:09 PM
Subject: Crackle Glaze
> Hi,
> I have been using a white glaze at cone 10 reduction. The glaze is lovely
but I would like to add some oxide to highlight the crackle. I tried wood
stain with success but of course can't use it for food. I tried hot oxides,
oxides on hot tiles and both but to no avail. Does anyone have any ideas?
I would be willing to refire an oxide if it were visible. Are either tea or
India permanent and safe to use.
> Thank you,
> Shel
>
>
____________________________________________________________________________
__
> 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.
>
Gary Holt on mon 3 nov 03
Hi Sheldon. Two suggestions: the first was given to me twenty years ago by
a Japanese potter who was staying with me in Berkeley. He suggested I use
sumi (calligraphy) ink to stain my crackle glaze, as it was permanent,
non-toxic, and easy to apply (just brush it on and wipe it off). I've used
it ever since, with no problems. These days most art supply stores (at least
here in California) carry it in liquid form.
The second is that if you have a good cone 10 white shino glaze which
crazes and also gives nice oranges on stoneware, fire a piece to cone 10 in
reduction, then simply refire it to bisque temperature in an oxidation
atmosphere. You should find that many of the craze lines have turned orange.
It's definitely more subtle than the strong black of the sumi ink, but I
found it interesting. If you like, I'll post the recipe I use, but I'm
pretty sure many American shino glazes would act similarly. Good luck...
Gary
Gary Holt
Berkeley, CA.
www.garyholt.com
-----Original Message-----
Hi,
I have been using a white glaze at cone 10 reduction. The glaze is lovely
but I would like to add some oxide to highlight the crackle. I tried wood
stain with success but of course can't use it for food. I tried hot oxides,
oxides on hot tiles and both but to no avail. Does anyone have any ideas?
I would be willing to refire an oxide if it were visible. Are either tea or
India permanent and safe to use.
Thank you,
Shel
Richard Mahaffey on sat 22 may 04
Hello,
I am looking for a formula for a glaze called P D Crackle. It is a
cone 10 Shino glaze that crawls.
I would gladly take any others that crawl that I can use as a starting
point for testing.
Thanks in advance,
Rick Mahaffey
Tacoma, Washington, USA
| |
|
