Daniel Semler on sat 26 mar 05
made..
Hi Wayne,
The sig I use I have had for more than a year. Can't remember when I made it
in fact :) Anyhow, it appears it may be a little thicker now than it use to be,
and I could probably thin it, but otherwise, its still going strong. The recipe
I used (Robin Hopper's out of Ceramic Spectrum) makes a lot. I'd have had to
sig my house to use it all in one go :)
> Rob brings up a point I would like clarified as well...can terra sig
> be "stored" for any length of time, say, in a container with a good
> lid? Could it be made in advance and then transported, or is it a
> pretty much "on-site" process only?
>
Thanx
D
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vhardin on sat 26 mar 05
made..
I have saved sig for over six months. I have noticed that if you do not
shake/stir the bottles periodically that the sig packs up settling harder
than if it is shaken up every week or so. When I was a student I
experimented with drying it for storage thinking that it could be easily
reconsituted. I found that was not to be the case. Getting it back to a
usable consistency required that I soak it and sieve it. But even then, it
was not the same and I would often take one of those blenders on a stick to
it. It wasn't worth the trouble.
Also, I found there is not a one size fits all sig. Sig needs to fit your
clay body tension wise. For instance, I use a ball clay sig over a low fire
body when I want the sig to crack like raku. When I pit fire this there is
more going on than just pitfire effects. It looks like a pitfire meets raku
pot. I like these results a lot so have worked on replicating them. As a
result, when going for this, I will take the sig to a thicker consistency by
decanting the top before it is shaken. I start with a heavy coat and then
end up using coats of the lighter sig as this will give me the sheen I am
going for. A warning, sig that is too thick will pop off!
If you want a sig that will fit your body use slurry from your throwing
bucket.
Vicki Hardin
http://VickiHardin.com
http://ClayArtWebGuide.com
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Wayne Seidl
Sent: Saturday, March 26, 2005 6:54 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Is terra sig available commercially or must it always be made..
Rob brings up a point I would like clarified as well...can terra sig be
"stored" for any length of time, say, in a container with a good lid? Could
it be made in advance and then transported, or is it a pretty much "on-site"
process only?
Wayne Seidl
Subject: Is terra sig available commercially or must it always be made..
I ask because I need to use some for some pieces that I will be bringing to
a workshop this summer and have no experience with it.
If I must make it can you recommend a website with some good recipes?
Thanks, Rob
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Vince Pitelka on sat 26 mar 05
made..
> Rob brings up a point I would like clarified as well...can terra sig
> be "stored" for any length of time, say, in a container with a good
> lid? Could it be made in advance and then transported, or is it a
> pretty much "on-site" process only?
Wayne -
Yes, it can be stored indefinitely in a lidded container. I have stored it
for years at a time with no deterioration in quailty. But terra sig can
also be dried completely and then reconstituted when needed. I make it in
large quantities and dry it in large metal bowls in electric kilns. When I
need some, I fill the bottom of a gallon jar with about an inch and a half
of the dry sig, and then cover that with water a few inches above the sig.
The next day, I add more water and check with a hydrometer in order to get
the 1.15 specific gravity that is ideal for application.
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/
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