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a big thank you to everyone, and one more raku question

updated mon 12 jul 04

 

COREY J SCHMIDT on fri 9 jul 04


I just wanted to thank everyone for the info on the Raku breakage problem I
was having, everything seems to working fine now!

But one more thing.

A friend of mine has gotten me interested in horsehair raku. Does anyone
have any information on this subject, terra-sig, or other "glaze" techniques
dealing with horsehair pottery. Any other alternatives to using terra-sig?
And/or any inexpensive suppliers?

Thanks again for the invaluable information this thread has to offer,

Corey

william schran on sat 10 jul 04


Corey wrote:> Does anyone
have any information on this subject, terra-sig, or other "glaze" techniques
dealing with horsehair pottery. Any other alternatives to using terra-sig?<

The way we've been using the horse hair raku technique is with both
unglazed & glazed ware.

The unglazed pot is taken from the firing & put on a broken kiln
shelf that may have some combustible on it if the bottom is to be
blackened. Often sprayed with ferric chloride (necessary precautions
here) & horse hair applied.

With white crackle glaze, the pot goes first to reduction chamber for
couple minutes then out to be sprayed with ferric chloride &
horsehair.

Bill

Carole Fox on sat 10 jul 04


Bill-
Wha??
Are you saying that you apply hose hair to a glazed pot? Doesn't the carbon
marking just wash off the surface?

Corey-
Check the clayart archives for terra sig info (esp. posts by Vince Pitelka
and Russell Fouts) and horse hair pots in general. I find a burnished or
terra sig pot to be much more appealing than naked clay. I suppose it is a
personal preference, but the smoother surface seems to make the pot
more...touchable!
Carole Fox
Silver Fox Pottery
Elkton, MD
thesilverfox@dol.net

----- Original Message -----
From: "william schran"
>
> With white crackle glaze, the pot goes first to reduction chamber for
> couple minutes then out to be sprayed with ferric chloride &
> horsehair.
>
> Bill

william schran on sat 10 jul 04


Carole wrote:>Bill- Wha?? Are you saying that you apply hose hair to
a glazed pot? Doesn't the carbon
marking just wash off the surface?<

Several of my students have done this and the hair seems to burn
into/stick to the surface ok.
Bill

Carole Fox on sun 11 jul 04


Gee, Bill
That is really interesting. I am wondering how the carbonization could
penetrate the glaze layer. After all, you said the pieces had already been
in the reduction chamber, so I would think that any exposed clay would
already be blackened and the glaze would be cool enough that it was
impenetrable.

I am not trying to be contrary, only to understand how this could occur.
Maybe I'll just have to try it someday to believe it!
Carole Fox
Silver Fox Pottery
Elkton, MD
thesilverfox@dol.net
----- Original Message -----
From: "william schran"
To:
Sent: Saturday, July 10, 2004 6:51 PM
Subject: Re: a big thank you to everyone, and one more Raku question


> Carole wrote:>Bill- Wha?? Are you saying that you apply horse hair to
> a glazed pot? Doesn't the carbon
> marking just wash off the surface?<
>
> Several of my students have done this and the hair seems to burn
> into/stick to the surface ok.
> Bill

Christy Pines on sun 11 jul 04


Following suggestions from a Lark book on "Alternative Firing" - sorry,
can't give more details, only got to look, not own - did a firing this
week (well, many firings actually, in the wonderful Blue Ridge Mountains
of North Carolina) with a bunch of wild potters, and we fired some pots
for horsehair.

I glazed just the lids with white crackle, got them good and hot (glaze
melted smooth and shiny) and sprayed with ferric chloride before laying
on the horse hair. Not only did the work on the pot that was not glazed,
but also on the shiny lid, which looks amazing. The hair only burns off
if the pot is not at the right temperature - too hot, burns away - too
cool, won't burn in at all.

And it's no longer hair, but gorgeous black lines on a purply, orange
and tan background. Marvelous. As I think about it, the carbon markings
must be just like the reduction that turns the clay black. That doesn't
rub off either.

christy in connecticut, after a week in the mountains. heaven on earth
over there.
cpines at ix.netcom.com
william schran wrote:

> Carole wrote:>Bill- Wha?? Are you saying that you apply hose hair to
> a glazed pot? Doesn't the carbon
> marking just wash off the surface?<
>
> Several of my students have done this and the hair seems to burn
> into/stick to the surface ok.
> Bill