rballou@mnsinc.com on mon 28 oct 96
I am about to take Jonathon Kaplan's suggestion and slip cast one of my
best sellers. However, I am stuck at square one right now,trying to find a
^10 stoneware slip. I have not been able to locate one that is commercially
made. So it looks like I'll be jumping into the deep end of the pool
(again) and will have to formulate one. Chappell and Conrad have 2 recipes
(which are listed below). But I haven't a clue as to how to evaluate a
slip, other than what one looks for in any clay body
(shrinkage,absorption,fired appearance).
I don't want to change firing temperature for one item because that means
new glazes, an extra firing, etc.
Does any one out there have a ^10 stoneware slip recipe they'd be willing
to share. Any recommendations on special considerations in evaluating a
casting slip? Any comments on Chappell's and Conrad's recipes?
SC-6
30 Kaolin
15 OM-4
15 Stoneware clay
5 Redart clay
15 Silica
20 Feldspar (soda)
.3 Sodium Carbonate
C92
27 Kaolin
20 Pot Spar
18 Flint
17.5 Stoneware Clay
17.2 OM-4 Ball Clay
.3 Sodium Silicate, dry
Thanks for your help.
Ruth Ballou
rballou@mnsinc.com
chull@startext.net on mon 28 oct 96
rballou@mnsinc.com wrote:
>
> ----------------------------Original message----------------------------
> I am about to take Jonathon Kaplan's suggestion and slip cast one of my
> best sellers. However, I am stuck at square one right now,trying to find a
> ^10 stoneware slip. I have not been able to locate one that is commercially
> made. So it looks like I'll be jumping into the deep end of the pool
> (again) and will have to formulate one.
Take heart Ruth, Laguna Clay Co. has a ^10 slip - 800-452-4862.
Cynthia
TX
Bob Howell on mon 28 oct 96
Try deflocculating your present stoneware body by adding .5% sodium silicate
and .25% soda ash, more or less. The amounts of these two deflocculants may
vary. It may not work, but if it does you'll have the same look and feel
to these pieces as your others do.
Bob Howell
bobhowell@linknet.net
| |
|
