Dave Finkelnburg on sat 14 feb 04
Dear Logan,
I know you wrote your post intending to be helpful. That good will is
what makes ClayArt so great. :-)
I am no brick expert, but I have some concerns about the recipes you
have found. At the very least I think before anyone tries these recipes
they want to test them.
The recipe you post for Repair Paste #2 is a generic cone 11 porcelain
recipe.
Repair Paste #1 recipe lists ingredients for a fairly highly fluxed
stoneware clay body, more of a sculpture body really. With that much talc
in it, plus the sodium silicate, I wonder how high it would fire. With 9%
walnut shells that will be a large volume of void space when the shells burn
out so this is effectively making an insulating fire brick body.
I wonder how these recipes would perform in repeated firings they would
see inside a kiln. I wonder if these were formulated with the idea of use
in a cool area of a kiln, or in a low-fire kiln?
Because of my strong reservations about these recipes I'm not going to
repost them here.
Good firing,
Dave Finkelnburg
----- Original Message -----
From: "logan johnson"
Sent: Saturday, February 14, 2004 3:06 AM
Hi Phil,
....I collected a couple of recipes from a book (don't remember which one)
but haven't tried them so you're on your own there....
logan johnson on sun 15 feb 04
Hi Dave ,
NO PROBLEM FROM ME!!! :^ D You'd certainly know better than I would. The only info I have on the recipe cards is that they are fired to ^ 10 . I found the formulas in a ceramic book of my teachers under
"Kiln repair Paste" when I had about 3 mos. of class while lookikg for glazes to try.
Haven't had the need for them since. ( Kilns are too expensive for this "kid" & mine are too new).
Thank You for letting me know. I'll be sure to "file" the cards I have correctly. ( the round file cabinet)
Dave Finkelnburg wrote:
Dear Logan,
I know you wrote your post intending to be helpful. That good will is
what makes ClayArt so great. :-)
I am no brick expert, but I have some concerns about the recipes you
have found. At the very least I think before anyone tries these recipes
they want to test them.
The recipe you post for Repair Paste #2 is a generic cone 11 porcelain
recipe.
Repair Paste #1 recipe lists ingredients for a fairly highly fluxed
stoneware clay body, more of a sculpture body really. With that much talc
in it, plus the sodium silicate, I wonder how high it would fire. With 9%
walnut shells that will be a large volume of void space when the shells burn
out so this is effectively making an insulating fire brick body.
I wonder how these recipes would perform in repeated firings they would
see inside a kiln. I wonder if these were formulated with the idea of use
in a cool area of a kiln, or in a low-fire kiln?
Because of my strong reservations about these recipes I'm not going to
repost them here.
Good firing,
Dave Finkelnburg
----- Original Message -----
From: "logan johnson"
Sent: Saturday, February 14, 2004 3:06 AM
Hi Phil,
....I collected a couple of recipes from a book (don't remember which one)
but haven't tried them so you're on your own there....
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