Peg Landham on thu 3 aug 00
>Bruce Girrell
>in northern Michigan, psyched because we found a porcelain based body
>supposedly suitable for the raku process. Throws nice. Very fine grog =
- no
>rocks. We'll see how it holds up.
Hey Bruce!
Please, let us know how it holds up. Raku is my passion, but longevity =
is my grave concern. I'm wanting to experiment with increasing firing =
temperatures, possibly trying post-firing reduction at some point in the =
cool-down phase. And does anyone know from experience: how true is =
Piepenburg's theory that 2000 degrees Fahrenheit will leave a glaze =
archivally set?
Peg Landham, thinking the mosquitoes are getting big enough to pick up =
after our most recent thunderstorm themselves.
Eydie DeVincenzi on sat 5 aug 00
There must have been prior messages in this thread that I never saw, so I=
'm
not sure if my response if appropriate...
I use Standard Porcelain 213 for Raku. I do post firing reduction and
sometimes I dunk my pieces into a pool of water after reduction. This
porcelain seems to respond better to the shocks of Raku than Standard's
"raku clay". I Raku handbuilt pieces exclusively.
Eydie DeVincenzi
Silver Spring, Maryland, USA
Sharon31 on sat 5 aug 00
Hello Eydie!
First some result from the past at:
http://lsv.uky.edu/cgi-bin/wa.exe?S2=3Dclayart&q=3D&s=3DRaku+porcelai=
n&f=3D&a=3D&b=3D
After: http://lsv.uky.edu/cgi-bin/wa.exe?S1=3Dclayart ClayArt Sre=
ach.
At last: http://www.escribe.com/art/clay/ lok for(Switch to Thread I=
ndex)
or (Switch to Author List)
---------------------------------------------------------------------=
-------
----
After all, Go to http://indalopottery.tripod.com/ and see the rakupor=
celain
of Fran=E7oise Melville.
Ababi
----- Original Message -----
=46rom: Eydie DeVincenzi
To:
Sent: Saturday, August 05, 2000 02:57
Subject: Re: Bruce Girrell's Porcelain Raku
There must have been prior messages in this thread that I never saw, =
so I'm
not sure if my response if appropriate...
I use Standard Porcelain 213 for Raku. I do post firing reduction an=
d
sometimes I dunk my pieces into a pool of water after reduction. Th=
is
porcelain seems to respond better to the shocks of Raku than Standard=
's
"raku clay". I Raku handbuilt pieces exclusively.
Eydie DeVincenzi
Silver Spring, Maryland, USA
_____________________________________________________________________=
_______
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Sharon31 on sat 5 aug 00
V.C. Raku porcelain:
========================
Groleg Kaolin>>>>>>>>>>>>20%
Tile#6Kaolin>>>>>>>>>>>>>20
Ballclay(om4)>>>>>>>>>>>>20
Talc>>>>>>>>>>>>>>>>>>>18
Alumina/calcined or hydrate>>>12
molochit>>>>>>>>>>>>>>>>10
Macaloid>>>>>>>>>>>>>>>>2
I do it a little different problems of supply.
>From the great HANDBOOK of Val Cushing.
>From Ababi that half of materials in the book are strange words for me!
----- Original Message -----
From: Peg Landham
To:
Sent: Friday, August 04, 2000 12:16
Subject: Re: Bruce Girrell's Porcelain Raku
>Bruce Girrell
>in northern Michigan, psyched because we found a porcelain based body
>supposedly suitable for the raku process. Throws nice. Very fine grog -
no
>rocks. We'll see how it holds up.
Hey Bruce!
Please, let us know how it holds up. Raku is my passion, but longevity is my
grave concern. I'm wanting to experiment with increasing firing
temperatures, possibly trying post-firing reduction at some point in the
cool-down phase. And does anyone know from experience: how true is
Piepenburg's theory that 2000 degrees Fahrenheit will leave a glaze
archivally set?
Peg Landham, thinking the mosquitoes are getting big enough to pick up after
our most recent thunderstorm themselves.
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
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
melpots@pclink.com.
Bruce Girrell on mon 7 aug 00
Eydie,
I inserted a short comment after my signature on an earlier message
regarding being psyched about finding a porcelain-based raku clay that I was
trying out. I had been trying to develop my own (it did work, but I had not
yet refined the amount of molochite and other additives). The thing that
excited me about this commercial clay is that it does not have heavy grog.
Other porcelain that we have gotten has 35 mesh kyanite or something in it,
which is _heresy_. My fingers recoil when they feel rocks in that wonderful
silky porcelain. It's like expecting to touch the soft skin of your lover
and finding the skin covered in gravel.
BTW, it is not _my_ porcelain based raku clay. It is from Great Lakes Clay
(Carpentersville, IL) if anyone is interested.
Bruce Girrell
in warm, muggy northern Michigan. Bisque of this stuff will be this week.
We'll see if it survives that first (I have gotten in the habit of quickly
cooling my bisque), then glaze firing this weekend.
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