Vince Pitelka on fri 19 nov 04
> Can anyone recommend a castable that can be use for the fire boxes and key
> for the arch on a small salt/soda kiln. About 30 cu ft.
John -
AP Green Mizzou castable works well. It will eventually degrade in such a
high-stress atmosphere, but I do not know of a better castable. We used it
for the burner ports and flue throat on our 60-cubic-foot salt kiln. After
four years of heavy use it is starting to show some wear and tear, but I
think it will be good for a few more years before needing repair.
AP Green is no longer in business, but the company that bought them out is
still making the products. Ask your local refractory supplier.
Good luck -
- Vince
Vince Pitelka
Appalachian Center for Craft, Tennessee Technological University
Smithville TN 37166, 615/597-6801 x111
vpitelka@dtccom.net, wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka/
http://www.tntech.edu/craftcenter/
John Britt on fri 19 nov 04
Hey John,
I have successfully used commercial castables like Pacco cast 3000, LI 28
(Low iron 2800 F)and Pryor Giggy L/R Cast 30 on castable kilns.
I have also used the castable recipe in Tudball's "Soda firing" book which
was OK.
You can also find castable recipes many places including:
http://www.goshen.edu/art/DeptPgs/castable.html
Good Luck,
JOhn Britt
www.johnbrittpottery.com
john elder on fri 19 nov 04
Can anyone recommend a castable that can be use for the fire boxes and key
for the arch on a small salt/soda kiln. About 30 cu ft.
Thanks,
John Elder
John Britt on sat 20 nov 04
Sorry, I don't know that answer to that one. Perhaps someone else will,
John Britt
www.johnbrittpottery.com
Eva Gallagher on sat 20 nov 04
Hi John
Great site!
Lots of castables call for kyanite. However I have lots of mullite - about
60 mesh - would that work? Presumably during firing the kyanite when it
changes into mullite, it "meshes" with other ingredients and as the mullite
is already "changed" it may not "mesh" as well with the other ingredients.
What do you think?
Regards,
Eva Gallagher
Deep River, Ontario
----- Original Message -----
From: "John Britt"
To:
Sent: Friday, November 19, 2004 10:05 PM
Subject: Re: castable for salt/soda kiln
> Hey John,
>
> I have successfully used commercial castables like Pacco cast 3000, LI 28
> (Low iron 2800 F)and Pryor Giggy L/R Cast 30 on castable kilns.
>
> I have also used the castable recipe in Tudball's "Soda firing" book which
> was OK.
>
> You can also find castable recipes many places including:
>
> http://www.goshen.edu/art/DeptPgs/castable.html
>
> Good Luck,
>
> JOhn Britt
> www.johnbrittpottery.com
>
>
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Marcia Selsor on sat 20 nov 04
In addition to the recipes mentioned by John Britt, it was recommended
by George Roselli from Phila. to use 5%
alumina hydrate on the hot face layer with the castable mix. Probably
spraying with ITC would also help with resisting corrosive
deterioration from the soda.
I have used the recipes in the Tudball book. Very simple.
Marcia Selsor
snowed last night in Montana
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