Anton TenWolde on mon 23 nov 98
Can anyone suggest a ^10 clear glaze which holds cobalt or blue underglazes
in a crisp line? I've been slowly working my way through the clear glazes
posted in the archives, with no luck so far. Thought maybe someone would
help me with a shortcut! I draw on porcelain, and fire in oxidation: I
would also like the clay to fire white under the glaze.
Thanks!
Marcia
Lana Reeves on tue 24 nov 98
Hi-- Some underglazes tend to spread or droop when glaze is applied. Is
this what you're talking about? I do a second bisque-- it doesn't have to
be too hot, just to "set" the underglazes--^012 or so. Hope this is
helpful. Lana in MA
-----Original Message-----
From: Anton TenWolde
To: CLAYART@LSV.UKY.EDU
Date: Monday, November 23, 1998 8:54 AM
Subject: ^10 Clear Glaze
----------------------------Original message----------------------------
Can anyone suggest a ^10 clear glaze which holds cobalt or blue underglazes
in a crisp line? I've been slowly working my way through the clear glazes
posted in the archives, with no luck so far. Thought maybe someone would
help me with a shortcut! I draw on porcelain, and fire in oxidation: I
would also like the clay to fire white under the glaze.
Thanks!
Marcia
Victoria Crowell on tue 24 nov 98
Dear Marcia,
Here's a cone 10 clear glaze I've been using for years.
Bauer's Clear
Cornwall stone 80
Whiting 15
Gerstly Bor. 6
Bentonite 3
Hope it works for you. Vikki
Anton TenWolde on thu 26 nov 98
Lana:
I do bisque on my underglazes - I've smeared an elaborate design once too
many times when I didn't! That isn't the problem, however - it looks like
the blue bleeds a little into the glaze, and then moves a little, flowing
just a smidgen down the pot, so you loose those sharp edges! Doesn't
happen with any other color, just blue. I have yet to find a glaze which
doesn't do this, and I've tested lots of beautiful clear glazes!
Thanks to all those who sent recipes - I'll be busy testing!
Marcia
Bob Hanlin on sat 28 nov 98
Marcia:
I'm curious, what do you mean by the phrase "I do bisque on my
underglazes"? Not trying to be smart, I just would very much like to know.
At 10:25 AM 11/26/98 EST, you wrote:
>----------------------------Original message----------------------------
>Lana:
>I do bisque on my underglazes - I've smeared an elaborate design once too
>many times when I didn't! That isn't the problem, however - it looks like
>the blue bleeds a little into the glaze, and then moves a little, flowing
>just a smidgen down the pot, so you loose those sharp edges! Doesn't
>happen with any other color, just blue. I have yet to find a glaze which
>doesn't do this, and I've tested lots of beautiful clear glazes!
>
>Thanks to all those who sent recipes - I'll be busy testing!
>Marcia
>
>
Bob Hanlin
bhanlin@ionet.net
Oklahoma City, OK
Ron Roy on tue 1 dec 98
Just thought I should mention that Cornwall Stone comes in several varities
- see "Out of the Earth into the Fire" by Obstler. They all vary in
refractoriness so this glaze will vary in looks - depending on the type you
get.
I have reformulated - replacing some of the Cornwall with g200 - Custer
will work as well. Don't know if it will look the same but it will cost
less.
Is it durable? Beats me - the limits I use disagree on this one - If I had
to guess I would say yes.
Cone 10 clear - UNTESTED.
-----------------
CORN STN................27.00
G 200 SPAR..............27.00
WHITING..................15.00
Gers Borate 9/97........7.00
EPK...............................8.00
SILICA.......................16.00
BENTONITE...............2.00
----------
Total.......................102.00
FORMULA & ANALYSIS
------------------
*CaO........ .62 11.38%
*MgO........ .03 .43%
*K2O........ .14 4.32%
*Na2O....... .12 2.37%
Fe2O3...... .01 .27%
TIO2....... .00 .05%
*B2O3....... .09 2.16%
AL2O3...... .42 14.01%
SiO2....... 3.29 64.85%
P2O5....... .00 .16%
RATIO 7.87
EXPAN 497.01 < it's gonna craze on many bodies
WEIGHT 304.28
>----------------------------Original message----------------------------
>Here's a cone 10 clear glaze I've been using for years.
>
>Bauer's Clear
>
>Cornwall stone 80
>Whiting 15
>Gerstly Bor. 6
>Bentonite 3
Ron Roy
93 Pegasus Trail
Scarborough, Ontario
Canada M1G 3N8
Tel: 416-439-2621
Fax: 416-438-7849
Web page: http://digitalfire.com/education/people/ronroy.htm
Jeri Palmer on sun 27 jun 99
When I bought my very used kiln I was given this wonderful glaze formula that
works every time. I love it. It is called Shaners Clear:
Flint 31.9
Custer Feldspar 31.9
Whiting 16.8
EPK 14.1
Dolomite 5.3
add Bentonite 2%
^9-^10 oxy or reduction. Good luck. Jeri
Jeri Palmer on sun 27 jun 99
When I bought my very used kiln I was given this wonderful glaze formula that
works every time. I love it. It is called Shaners Clear:
Flint 31.9
Custer Feldspar 31.9
Whiting 16.8
EPK 14.1
Dolomite 5.3
add Bentonite 2%
^9-^10 oxy or reduction. Good luck. Jeri
Terry or Karen Mayo on wed 30 jun 99
Mike Wintz wrote:
>
> ----------------------------Original message----------------------------
>
> Hi All. I am looking for a good, reliable clear glaze to use over
> slip, or oxides, on porcelain. I have tried several private and
> commercial glazes, but they usually craze (which makes me craze-y !)
> (Sorry), or have some other imperfection. Thank you.
>
> _________________________________________________________
> Do You Yahoo!?
> Get your free @yahoo.com address at http://mail.yahoo.com
Mike, Try this ^10 clear satin which is great to add colorants to. I got
it as a ^7 matte in Carracas, Venezuela.
Custer feldspar 40%
Talc 15%
EPK 20%
Silica 15%
Dolomite 10%
Karen in Houston
Chic Lotz + keith Montgomery on wed 20 aug 08
Hey Pam,
This is a well known ^10 glossy clear glaze by Bernard Leach that is
simple to mix with commonly used ingredients.
40 Custer Feldspar
30 Silica or Flint
20 whiting
10 EPK Kaolin
Chic Lotz
www.GlazeBasics.com
Date: Tue, 19 Aug 2008 09:12:23 EDT
From: Pamela Annarilli
Subject: Re: Colored Slip Results at Cone 10
Thank you for the suggestion of thinning down a clear glaze! What a
simple yet brilliant idea! Do you have a cone 10 clear glaze recipe
that you
have done this with before and are willing to share?
Many thanks,
Pam
Lee Love on thu 21 aug 08
Back home, I used something I got from Shirley Johnson: L G Clear
(light green clear.) I used it under synth. Mashiko kaki.
I believe it is a variation of the
Leach cone 8 1234:
Custer 27
OM4 14
Whiting 20.5
Flint 31.5
Kaolin 7
On Thu, Aug 21, 2008 at 2:11 AM, Chic Lotz + keith Montgomery
wrote:
> Hey Pam,
>
> This is a well known ^10 glossy clear glaze by Bernard Leach that is
> simple to mix with commonly used ingredients.
>
> 40 Custer Feldspar
> 30 Silica or Flint
> 20 whiting
> 10 EPK Kaolin
>
> Chic Lotz
> www.GlazeBasics.com
>
> Date: Tue, 19 Aug 2008 09:12:23 EDT
> From: Pamela Annarilli
> Subject: Re: Colored Slip Results at Cone 10
>
> Thank you for the suggestion of thinning down a clear glaze! What a
> simple yet brilliant idea! Do you have a cone 10 clear glaze recipe
> that you
> have done this with before and are willing to share?
> Many thanks,
> Pam
>
--
--
Lee Love in Minneapolis
http://mashikopots.blogspot.com/
http://claycraft.blogspot.com/
"Let the beauty we love be what we do.
There are hundreds of ways to kneel and kiss the ground." --Rumi
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