Carole Fox on wed 21 dec 05
Okay- I am desperate, so please don't just give me a hard time about not
knowing...
I mixed up my Ron Roy floating blue recipe and suddenly the glaze was not
fitting my clay. Ron suggested I might have mixed it wrong so I mixed up
another batch- still pinging. I use a cone 6 porcelain, but I recall it was
a bad fit on some stoneware that I fired for a friend.
I tried to use the glazemaster program that I got a long time ago (but never
used yet!) to see if I could make some variations to try with different COE.
I am clueless.
I have a large dinnerware set that I am late with and I don't know what to
do. Ron has given me some variations on the glaze, but they all have
ingredients that I don't have (Frit 2378). How do I make my own variations
on this glaze?
It is:
Neph Sy- 300
3134- 360
Silica- 140
EPK- 200
RIO 20
Cob. ox.- 1.2
Rutile 40
A shower of thanks awaits anyone who can help!
Carole Fox
Silver Fox Pottery
Elkton, MD
silverfoxpottery@comcast.net
William & Susan Schran User on wed 21 dec 05
On 12/21/05 8:39 AM, "Carole Fox" wrote:
> How do I make my own variations
> on this glaze?
> It is:
> Neph Sy- 300
> 3134- 360
> Silica- 140
> EPK- 200
> RIO 20
> Cob. ox.- 1.2
> Rutile 40
Carole - First thought without doing any calculations would be to calcine
half the EPK or replace all or part of the EPK with Ball Clay.
There may also be issues of COE with the Neph. Sy., but replacing that with
a different feldspar may alter the finished result and would certainly
require recalculating the entire glaze.
I'm another potter who is glad to have walked away from the "floating blue
madness"
-- William "Bill" Schran
Fredericksburg, Virginia
wschran@cox.net
wschran@nvcc.edu
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