Cindy Strnad on sun 8 apr 01
Golden Fake Ash, ^6
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REDART.............. 28.00 28.00%
OM #4 BALL CLAY..... 21.00 21.00%
BONE ASH............ 5.00 5.00%
STRONTIUM CARBONATE. 9.00 9.00%
DOLOMITE............ 25.00 25.00%
GERSTLEY BORATE..... 10.00 10.00%
LITHIUM CARBONATE... 2.00 2.00%
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100.00
CaO 0.45* 16.30%
Li2O 0.05* 1.05%
MgO 0.32* 8.24%
K2O 0.03* 1.78%
Na2O 0.02* 0.93%
SrO 0.12* 8.17%
TiO2 0.01 0.72%
Al2O3 0.20 13.34%
B2O3 0.08 3.76%
P2O5 0.03 3.04%
SiO2 1.03 39.78%
Fe2O3 0.03 2.89%
Cost/kg 1.25
Si:Al 5.06
SiB:Al 5.48
Expan 7.52
Originally posted by Andie Carpenter. I changed it just slightly to get rid
of the decimal points and make it add up to 100. I also didn't feel I needed
to use the 1% bentonite originally called for as this glaze is quite high in
clay content.
My results were very different from Andie's, but then I was using a very
different clay. I got a yellow-green glaze which does look like an ash
glaze, complete with the runnels ending in greenish globby areas. I know
this sounds rather unappetizing, however it's quite attractive in person.
There are a few pinholes at the ends of the globs, one of who's number made
it all the way to the shelf. However, I think this is a great glaze for
those of us who like ash glazes and don't get to fire in wood kilns.
Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
earthenv@gwtc.net
http://www.earthenvesselssd.com
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