WHew536674@cs.com on thu 24 feb 00
Hi All,
Looking for a nice white or clear crackle glaze for porcelain, cone 9
oxidation. Would like to smoke the piece after it is fired. Anyone who
would be willing to share a recipe with me would be appreciated. Thanks in
advance.
Joyce A
WHew536674@cs.com
Paul Taylor on sat 26 feb 00
Dear A
I have not seen any replies to Your Question
I suspect it is because no one has the answer not an unwillingness to share.
If you are serious about the glaze
you will have to look at the whole glaze thing differently . The firing may
be more of a relevance.
Do some draw trials on your present glazes to find out when they melt -you
will be surprised.
Take your present cone 9 glazes and put them on as thick as possible another
biscuit firing between coats if necessary and fire to '<' cone six or as low
as possible to get the glaze melted, the glaze will probably crackle.
This is what I an working on at the moment. I have been making chinese
type glazes for twenty severn years. You are about to discover that many
people know how these glazes were made, books have been written, but very
few have actually made one to the classical standard.
Does smoking get the black into the cracks I will try it.
What do you reckon on heating the pot up in a sawdust filled saggar.
Read Nigel Woods 'Chinese Glazes' and NewYork glazse institute 'Thoes
celadon blues' then you are on your own.
Paul T
----------
>From: WHew536674@cs.com
>To: CLAYART@LSV.UKY.EDU
>Subject: Cone 9 crackle
>Date: Thu, Feb 24, 2000, 5:41 pm
>
>----------------------------Original message----------------------------
>Hi All,
>Looking for a nice white or clear crackle glaze for porcelain, cone 9
>oxidation. Would like to smoke the piece after it is fired. Anyone who
>would be willing to share a recipe with me would be appreciated. Thanks in
>advance.
>Joyce A
>WHew536674@cs.com
John Fazzino on sun 27 feb 00
Hi, There is a Crackle glaze called Jamie's Texture in the cone 9/10 range.
Neph Sy 60%
Mag Carb 40%
You can play around with these numbers to get different results and you can
also add Mag Carb to other recipes to see what happens there as well. Happy
testing.
John Fazzino
Providence College
www.johnfazzino.com
June Perry on sun 27 feb 00
A classic cone 9-10 crackle is Cornwall Stone 85 Whiting 15. You can also do
so testing adding some opacifier if needed. This is quite shiny with small
crackles at cone 10 when applied thickly.
Regards,
June
Peter T. Wang on wed 1 mar 00
On Sun, 27 Feb 2000, June Perry wrote:
> ----------------------------Original message----------------------------
> A classic cone 9-10 crackle is Cornwall Stone 85 Whiting 15. You can also do
> so testing adding some opacifier if needed. This is quite shiny with small
> crackles at cone 10 when applied thickly.
>
> Regards,
> June
Hi June,
I just wanted to mention that this glaze is indeed a classic--beautiful on
porcelain, good up to at least cone 11. Aside from the variability of
Cornwall Stone (aka Cornish Stone), I think this glaze makes for a good
case for the idea that crazing is a function of the body as well as the
glaze composition. You see, this glaze fits quite well on the porcelain
body I'm using, and that is a shame, because I have been trying to get
controllable crazing patterns on my ware. Unfortunately I have yet to
find a glaze which has good application properties that fits the bill;
too much soda feldspar and the stuff not only settles like a rock but is
impossible to pour or brush onto bisque....
-peter
David Hendley on thu 2 mar 00
Dear Peter,
To make your glaze craze, try adding some glass cullet
(ground-up, milled bottle glass) to your glaze. It's mostly
soda, so you can add some clay to keep it suspended without
the clay adding too much alumina.
A glaze of 80% cullet and 20% kaolin gives a nice pooling, fluid
crackle glaze at cone 10 on my clay.
--
David Hendley
Maydelle, Texas
hendley@tyler.net
http://www.farmpots.com/
----- Original Message -----
From: Peter T. Wang
To:
Sent: Wednesday, March 01, 2000 11:41 AM
Subject: Re: Cone 9 crackle
| ----------------------------Original message----------------------------
| On Sun, 27 Feb 2000, June Perry wrote:
|
| > ----------------------------Original message----------------------------
| > A classic cone 9-10 crackle is Cornwall Stone 85 Whiting 15. You can
also do
| > so testing adding some opacifier if needed. This is quite shiny with
small
| > crackles at cone 10 when applied thickly.
| >
| > Regards,
| > June
|
| Hi June,
|
| I just wanted to mention that this glaze is indeed a classic--beautiful on
| porcelain, good up to at least cone 11. Aside from the variability of
| Cornwall Stone (aka Cornish Stone), I think this glaze makes for a good
| case for the idea that crazing is a function of the body as well as the
| glaze composition. You see, this glaze fits quite well on the porcelain
| body I'm using, and that is a shame, because I have been trying to get
| controllable crazing patterns on my ware. Unfortunately I have yet to
| find a glaze which has good application properties that fits the bill;
| too much soda feldspar and the stuff not only settles like a rock but is
| impossible to pour or brush onto bisque....
|
| -peter
|
| |
|
