Barney Adams on thu 4 mar 99
Hi,
I hope I can get this right. I've already posted what
I thought was going to the list as a private response.
It's been hectic lately. I wonder if it's the double blue moons.
Any way I finished my first glaze and as soon as I get a chance
to photograph the pieces I'll post the results on my page.
It's a cone 6 and on my speckled buf stoneware it's a beatiful
brown. On my whiteware it tends toward yellow brown. I
mixed this to react with other glazes and I've gotten mottled
browns, metallic greens, oil spot and even a metallic silver
effect. The firing takes me about 12 hours with a 15 min soak
and slow cool down for first couple hundred degrees. The ^6
is at 3 o'clock. (For south bound kiln this would be 9:00). I
can'nt be sure, but I think this glaze helps the others melt.
Barnacle Bill Glaze 4
=====================
NEPHELINE SYENITE... 1500.00 25.00%
WOLLASTONITE........ 450.00 7.50%
NYTAL TALC.......... 300.00 5.00%
FLINT............... 2275.00 37.92%
EPK KAOLIN.......... 350.00 5.83%
MANGANESE CARBONATE. 50.00 0.83%
RUTILE.............. 100.00 1.67%
IRON OXIDE RED...... 300.00 5.00%
BENTONITE........... 100.00 1.67%
LITHIUM CARBONATE... 150.00 2.50%
STRONTIUM CARBONATE. 175.00 2.92%
GERSTLEY BORATE..... 250.00 4.17%
========
6000.00
CaO 0.36* 6.57%
Li2O 0.11* 1.08%
MgO 0.13* 1.65%
K2O 0.04* 1.35%
Na2O 0.16* 3.27%
SrO 0.06* 2.18%
TiO2 0.07 1.77%
ZrO2 0.00 0.02%
Al2O3 0.27 9.01%
B2O3 0.10* 2.32%
P2O5 0.00 0.01%
SiO2 3.30 64.68%
Fe2O3 0.10 5.35%
MnO 0.03* 0.73%
Cost/kg 1.17
Si:Al 12.18
SiB:Al 12.56
Expan 6.95
I started out mixing a 5000g batch and remembered I wanted
some boron for the blue it gives sometimes. Thats why I'm
posting this as batch. This is how I mixed it. I fired a whole
kiln load with this as the main glaze and applied some of my
other glazes. Every piece including the ones with just the above
glaze were a knockout (my opinion). If you try it out please let
me know how it works for you. Thanks Ron.
Barney
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