Richard G. Ramirez on wed 12 sep 07
Judy,
This is the way I would look it.
Clay vitrifies, becomes stone -like, very hard for water to seep through at the temperature it says it matures at; ie, cone 1, 3, 6. even over 10. If I fire and glaze the clay object( ^ 6) below the temp it says , then it's a good chance that, it could weep. What do you think?
Richard G. Ramirez
"The Clay Stalker"
in cool Sacramento, Ca.
"Smith, Judy" wrote:
Currently I use a cone 6 clay because I fire my glazes to cone 6. I am
planning on glazing some pots with majolica glazes that fire to cone 05.
Do I need to use a different clay for the majolica pots or can I still
use the cone 6 clay? Any help would be appreciated.
Thanks,
Judy Smith
Nashville, TN
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Smith, Judy on wed 12 sep 07
Currently I use a cone 6 clay because I fire my glazes to cone 6. I am
planning on glazing some pots with majolica glazes that fire to cone 05.
Do I need to use a different clay for the majolica pots or can I still
use the cone 6 clay? Any help would be appreciated.
=20
Thanks,
Judy Smith
Nashville, TN
Deborah Thuman on thu 13 sep 07
Judy Smith asked: "Currently I use a cone 6 clay because I fire my
glazes to cone 6. I am
planning on glazing some pots with majolica glazes that fire to cone 05.
Do I need to use a different clay for the majolica pots or can I still
use the cone 6 clay? "
It depends. Majolica is really fun stuff and if I want something usable
(meaning use with food), I use my ^04 clay. Can't back this up with any
sort of scientific explanation, but I have it in my head that low fire
glaze on a high fire body isn't going to give the kind of glaze/clay
fit that using the same ^ glaze and clay will give.
But.... one semester I decided I was going to use ^10 clay and ^04
underglazes. I like the intense colors of low fire and I was convinced
I could get the colors on high fire clay. So.... I made my pieces,
bisque fired them, then fired them to ^10. Then, I used the underglazes
along with a clear glaze. I had carved some pine trees into the side of
the pot, an I used the underglazes on the trees. Then I put a clear
glaze over the underglaze and fired to ^05. I had interesting results.
The color of the naked clay changed in the low fire to an earthy yellow
(much nicer than it sounds) an I got almost intense colors on the
trees.
Deb
http://debthumansblog.blogspot.com/
Ron Roy on tue 18 sep 07
Hi Judy,
Why not do it all at cone 6 - you will have a body that shouldn't leak and
the same kind of colour response. There is a cone 6 majolica glaze in our
book for instance - one of the best I hear.
If you must - a cone 6 clay will do - almost the same amount of leaking as
most cone 04 bodies. Perhaps you should ask on ClayArt if there are any
cone 04 clays that will be tight enough to not leak at 04.
RR
>Judy Smith asked: "Currently I use a cone 6 clay because I fire my
>glazes to cone 6. I am
>planning on glazing some pots with majolica glazes that fire to cone 05.
>Do I need to use a different clay for the majolica pots or can I still
>use the cone 6 clay? "
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Smith, Judy on wed 19 sep 07
Hi Ron,
I bought and read your book last December. I wanted to get an
understanding of how glazes work. I have never mixed my own glazes. I
guess this would be a good time to start. I plan to use Mason stains to
color the glaze. What percentage stain do you suggest?
Thanks,
Judy Smith
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Ron Roy
Sent: Tuesday, September 18, 2007 1:23 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Clay and majolica
Hi Judy,
Why not do it all at cone 6 - you will have a body that shouldn't leak
and
the same kind of colour response. There is a cone 6 majolica glaze in
our
book for instance - one of the best I hear.
If you must - a cone 6 clay will do - almost the same amount of leaking
as
most cone 04 bodies. Perhaps you should ask on ClayArt if there are any
cone 04 clays that will be tight enough to not leak at 04.
RR
>Judy Smith asked: "Currently I use a cone 6 clay because I fire my
>glazes to cone 6. I am
>planning on glazing some pots with majolica glazes that fire to cone
05.
>Do I need to use a different clay for the majolica pots or can I still
>use the cone 6 clay? "
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
________________________________________________________________________
______
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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
melpots2@visi.com
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