mel jacobson on fri 17 mar 06
had a nice chat the other day with donovan palmquist.
he mentioned that some potters are
lining their hard brick kilns with shino glaze.
it seems that this glaze resists the salt and crappy stuff
inside the kiln.
so. just a thought for discussion.
hmmm, seems interesting.
spray, roll or brush.
it would work.
mel
"Luck is prepaid."
from: mel/minnetonka.mn.usa
website: http://my.pclink.com/~melpots3
Sam Hoffman on tue 21 mar 06
Lining kilns with shino is often done in Japan, but usually when the
bricks start spawlling and falling apart. The shino glaze holds
everything together and prevents the little chunkers from falling on
the ware. The idea of applying it to a newly built kiln seems like a
clever one. Man, I bet come 100 firings the inside of the kiln would
be beautiful.
It seems that this idea is not dissimilar to Mel's approach of
salting the anagama during the first firing to build up a layer of
protective glaze. I wonder, however, if the salt (or soluables in
the Shino) would migrate into the brick and lessen their refractive
qualities. Definitely an intriguing approach... Anyone else doing
this?
Peace,
Sam
On Mar 17, 2006, at 8:10 PM, mel jacobson wrote:
> had a nice chat the other day with donovan palmquist.
> he mentioned that some potters are
> lining their hard brick kilns with shino glaze.
>
> it seems that this glaze resists the salt and crappy stuff
> inside the kiln.
>
> so. just a thought for discussion.
> hmmm, seems interesting.
> spray, roll or brush.
> it would work.
> mel
> "Luck is prepaid."
> from: mel/minnetonka.mn.usa
> website: http://my.pclink.com/~melpots3
>
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lee love on wed 22 mar 06
--- In clayart@yahoogroups.com, Sam Hoffman wrote:
> It seems that this idea is not dissimilar to Mel's approach of
> salting the anagama during the first firing to build up a layer of
> protective glaze. I wonder, however, if the salt (or soluables in
> the Shino) would migrate into the brick and lessen their refractive
> qualities. Definitely an intriguing approach... Anyone else doing
> this?
The results of Peter Meanly's kiln coating research is in Ceramics
TECHNICAL periodical #18 2004.
I was sent a copy of this and it is pretty helpful. Meanly found
that coatings like ITC didn't last very long in salt, but a glaze
surface did very well.
I wrote the company that produces the product that worked the best
in these tests. While the coating is inexpensive, shipping cost
is very high. Lost these emails when Thunderbird exploded.
I imagine you could test a glaze without soda ash in it.
Japanese shinos do not normally have soda ash added. They are all
feldspar, sometimes with some kaolin added.
--
Lee In Mashiko, Japan
http://mashiko.org
http://seisokuro.blogspot.com/
"On the internet, nobody knows you are a dog."
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