Craig Clark on thu 1 aug 02
friend
Barbara, some clays are much better at surviving the thermal shock of
raku than others, though as your friend says just about any clay will work.
THe difference will be the survival rate of the pots.
I currently use Black Jack clay and Laguna's WSO. I used to my own mix
which was a 100 lb bag of Hawthorn Bond, a 50 lb bag of ball clay, a 50 lb
bag of Gold Art and grog to taste. The grog content will range from less
than 10 to 20%. I mixed the body in a Soldner Mixer and de-aired it in a
Venco de-airing pugmill.
Any ready made clay with a resonable amount of grog or kyanite will do.
Just tell your clay supplier what you are attempting. If you want to use the
clay that you have on hand just wedge some sand and/or grog into it. It will
probably work just fine.
Craig Dunn Clark
619 East 11 1/2 st
Houston, Texas 77008
(713)861-2083
mudman@hal-pc.org
----- Original Message -----
From: "Barbara Mueller"
To:
Sent: Wednesday, July 31, 2002 5:10 PM
Subject: Re: Do your raku pots "ring" when thumped?
> What clays would people recommend for raku? Taking 8 days out of the
> normal schedule and doing clay week with a friend who is coming to stay
> out at the lake with me. Our plan is to throw, bisque and on the last
> day fire in a raku kiln that we will make. When I asked my friend what
> type of clay I should have on hand she said she uses anything. I use
> mostly Laguna midrange clay bodies. Has anyone had any experience with
> these and can make a recommendation. I have on hand Porcelain 5, Red
> Calico, Morracian Sand, SB Red.
>
> Would appreciate any suggestions.
> Barb
>
> -----Original Message-----
> From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG] On
> Behalf Of Paul Gerhold
> Sent: Wednesday, July 31, 2002 9:23 AM
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: Re: Do your raku pots "ring" when thumped?
>
> Ken,
> Given two pots of equal esthetic value I would probably say that the
> pot
> that rang was the better pot since it was most likely more vitrified and
> thus
> more likely to survive the test of time.
>
> I would also say that since no two artists work is the same that your
> competitor was way out of line, probably not very honest and that the
> gallery
> person should learn something about pottery if he is going to be in the
> business.
>
> On the other hand if you are really using a cone 10 body for raku your
> pots
> could be a lot more fragile than they have to be.
> Paul
>
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