Farren on thu 7 oct 99
Hi all. I recently started firing at a studio that has a gas kiln and am
using a cranberry glaze (Pete's Cranberry) which has crazed a lot on the
clay I'm using. I think it does it on some other clays, too. It's being
fired to cone 10. I like the color thought not the crazing but I'm
willing to ignore the crazing if it doesn't cause a health hazard on
pots for serving food. I know the clay is vitrified but are there any
safety issues I should be aware of if I continue to use this glaze?
Thanks for any info you can give me on this.
Patricia Farren
Bill Williams on fri 8 oct 99
If it's the same glaze, I fire it to cone 6. Connie
-----Original Message-----
From: Farren
To: CLAYART@LSV.UKY.EDU
Date: Thursday, October 07, 1999 7:10 PM
Subject: Crazing glaze
>----------------------------Original message----------------------------
>Hi all. I recently started firing at a studio that has a gas kiln and am
>using a cranberry glaze (Pete's Cranberry) which has crazed a lot on the
>clay I'm using. I think it does it on some other clays, too. It's being
>fired to cone 10. I like the color thought not the crazing but I'm
>willing to ignore the crazing if it doesn't cause a health hazard on
>pots for serving food. I know the clay is vitrified but are there any
>safety issues I should be aware of if I continue to use this glaze?
>Thanks for any info you can give me on this.
>
>Patricia Farren
>
David Hewitt on fri 8 oct 99
Patricia,
Quite apart from any concerns about any safety issues on items which
craze and are tableware and hence used for food, (and I am sure that
there are some such concerns), I would have thought that you would have
found them difficult to sell if intended for tableware and not just
decorative jugs and teapots which are placed on a shelve. In the long
run I would definitely think it worth while avoiding the crazing by one
means or another.
David
In message , Farren writes
>----------------------------Original message----------------------------
>Hi all. I recently started firing at a studio that has a gas kiln and am
>using a cranberry glaze (Pete's Cranberry) which has crazed a lot on the
>clay I'm using. I think it does it on some other clays, too. It's being
>fired to cone 10. I like the color thought not the crazing but I'm
>willing to ignore the crazing if it doesn't cause a health hazard on
>pots for serving food. I know the clay is vitrified but are there any
>safety issues I should be aware of if I continue to use this glaze?
>Thanks for any info you can give me on this.
>
>Patricia Farren
>
--
David Hewitt
David Hewitt Pottery ,
7 Fairfield Road, Caerleon, Newport,
South Wales, NP18 3DQ, UK. Tel:- +44 (0) 1633 420647
FAX:- +44 (0) 870 1617274
Own Web site http://www.dhpot.demon.co.uk
IMC Web site http://digitalfire.com/education/people/hewitt.htm
Ray Carlton on sat 9 oct 99
try it on a porcelaine body
cheers Ray Carlton
McMahons Creek Victoria Australia
At 20:09 07/10/1999 EDT, you wrote:
>----------------------------Original message----------------------------
>Hi all. I recently started firing at a studio that has a gas kiln and am
>using a cranberry glaze (Pete's Cranberry) which has crazed a lot on the
>clay I'm using. I think it does it on some other clays, too. It's being
>fired to cone 10. I like the color thought not the crazing but I'm
>willing to ignore the crazing if it doesn't cause a health hazard on
>pots for serving food. I know the clay is vitrified but are there any
>safety issues I should be aware of if I continue to use this glaze?
>Thanks for any info you can give me on this.
>
>Patricia Farren
>
cheers Ray Carlton
McMahons Creek Victoria Australia
Ron Roy on sat 9 oct 99
I need the recipe to give an opinion - any Barium? I may be able to stop
the crazing as well.
Are you willing to do some experiments and post them to ClayArt?
RR
>----------------------------Original message----------------------------
>Hi all. I recently started firing at a studio that has a gas kiln and am
>using a cranberry glaze (Pete's Cranberry) which has crazed a lot on the
>clay I'm using. I think it does it on some other clays, too. It's being
>fired to cone 10. I like the color thought not the crazing but I'm
>willing to ignore the crazing if it doesn't cause a health hazard on
>pots for serving food. I know the clay is vitrified but are there any
>safety issues I should be aware of if I continue to use this glaze?
>Thanks for any info you can give me on this.
>
>Patricia Farren
Ron Roy
93 Pegasus Trail
Scarborough
Ontario, Canada
M1G 3N8
Evenings 416-439-2621
Fax 416-438-7849
Lesley Alexander on wed 13 oct 99
Pete Pinell just finished a great workshop in Kansas City (Red Star Studio,
organized by Steven Hill). His pots are powerful and elegant, his interests
far-ranging and ability to make complex concepts accessible most helpful.
There was a handout with glazes, including Pete's Cranberry, in the ^10
section. More precisely, it was:
Custer 73.8
Gerstley Borate 10.2
Whiting 11.1
Silica 4.9
Add:
Copper carb .3
Tin oxide 1.0
"Flocculate with muriatic acid or Epsom
Salts. The most dependable copper red I've used. goes a bit flambe when
applied very thick or over reduced. Runs less than most copper reds."
That's for whatever you make of it. I haven't worked with the glaze at this
point. If I remember correctly, he also said most celadon blues tended to
crackle (unless someone sneaked in some cobalt, I suppose.) Lesley
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