Edy Nathan on fri 17 feb 06
Hi all,
As I have said in my last missives I have this
wonderful recipe that calls for barium, and since I
will not use the barium to make the recipe I have
replaced it with str. carb., however the glaze did not
turn out the same. As I have learned from all of you
wonderful experts, amounts replaced with other
chemical compounds must compensate for molecular
weight.
Here is the recipe for Starshine. I have loved this
glaze because it is consistently a beautiful glossy
glaze in the green family of colours that borders on
both a soft tourquoise and a deep sea green. When
mixed with other glazes the effect is often amazing.
custer 46
gerstley 12
soad ash 5
barium 5
lithium 2
whiting 10
flint 20
____________
100
add titanium 4
copper carb 5
thanks in advance for any input in the amount of
replacement for barium and what you would replace it
with...str. carb, magnesium?
Adventures keep us all alive
Edy www.visioninclay.com
Ron Roy on sat 18 feb 06
Hi Edy,
I would try it two ways - leave out the barium carb abd replace it with 3.5
Strontium Carb or replace it with an extra 2.5 whiting.
All three glazes are probably going to craze by the way - not much you can
do about that with all that soda ash.
RR
>As I have said in my last missives I have this
>wonderful recipe that calls for barium, and since I
>will not use the barium to make the recipe I have
>replaced it with str. carb., however the glaze did not
>turn out the same. As I have learned from all of you
>wonderful experts, amounts replaced with other
>chemical compounds must compensate for molecular
>weight.
>
>
>Here is the recipe for Starshine. I have loved this
>glaze because it is consistently a beautiful glossy
>glaze in the green family of colours that borders on
>both a soft tourquoise and a deep sea green. When
>mixed with other glazes the effect is often amazing.
>
>custer 46
>gerstley 12
>soad ash 5
>barium 5
>lithium 2
>whiting 10
>flint 20
>____________
> 100
>add titanium 4
>copper carb 5
>
>thanks in advance for any input in the amount of
>replacement for barium and what you would replace it
>with...str. carb, magnesium?
>
>Adventures keep us all alive
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
| |
|
