wade franklin on mon 17 apr 06
im trying to convert to single fire and am using glazes in mastering cone 6
book-i want to drop the epk and replace it with ball clay-i know the
alumina is lower in ball clay-im wanting to change the epk to ball clay in
the glossy glaze 1 and semi matt glaze 1-what else would i have to adjust?
Ron Roy on tue 18 apr 06
Hi Wade,
I'll do it for you - just to make sure - Glossy base #1 and High Calcium
semimatte base 1 - correct?
What kind of ball clay will you use?
You need more ball clay because ball clays have less alimina - but they
also have more silica so you have to take some of that out.
This is not difficult when you have a glaze calc program - you even have
the advantage of comparing ratio and expansion to see just how close you
get.
You can also do it by line blending but it takes a lot more time.
RR
>im trying to convert to single fire and am using glazes in mastering cone 6
>book-i want to drop the epk and replace it with ball clay-i know the
>alumina is lower in ball clay-im wanting to change the epk to ball clay in
>the glossy glaze 1 and semi matt glaze 1-what else would i have to adjust?
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Ruth Ballou on tue 18 apr 06
The easiest way to convert to single fire is to first try adding
bentonite in 2% increments, up to 8%, without changing the recipe.
Ruth Ballou
On Apr 17, 2006, at 6:08 PM, wade franklin wrote:
> im trying to convert to single fire and am using glazes in
> mastering cone 6
> book-i want to drop the epk and replace it with ball clay-i know the
> alumina is lower in ball clay-im wanting to change the epk to ball
> clay in
> the glossy glaze 1 and semi matt glaze 1-what else would i have to
> adjust?
>
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wade franklin on wed 19 apr 06
RON YOU WERE CORRECT ON THE TWO GLAZES-I HAVE ACCESS TO TENN AND KENTUCKY
BALL CLAYS-WADE ALSO ARE YOU GOING TO BE IN ATLANTA IN MAY-MAY WANT YOU
TO HELP ME UNDERSTAND USING THESE GLAZE SOFTWARE PROGRAMS
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