Kenneth Dickerson on thu 24 aug 06
Does anyone know how to get the halo thin outline on a consistent
basis with the soldner slip?
Karen Sullivan on thu 24 aug 06
Howdy...
The Soldner halo slip is a lesson
About following one's mistakes...
Which is the path to discovering
New things...
The pot was an accident, and it
Took Paul a decade to duplicate the
Affect...
It was a simple copper slip...
And the piece was placed in a
Trash can for reduction...
He does not use huge amounts of
Paper or sawdust for the post firing
Reduction...perhaps only 3 sheets of
Newspaper....
Watch the smoke in the can...and it will
Burn yellowish...when it turns color...
Burp the can (i.e. Let oxygen into
The can)...a quick burp...and
With luck you will get the halo...
Practice....
And good luck
Bamboo karen
Bonnie Staffel on fri 25 aug 06
When I was living in Brasstown, NC, I used my favorite mixture of =
oxides to
get a black, one ingredient of which is copper carb. I decorated a pot =
that
I then sawdust fired. Wow, I got that halo with no fooling around. The =
two
pots were then purchased by the new bank in Murphy for their mantle =
behind
the tellers. Those pots were tricky to achieve without cracking as =
they
were stovepipe forms and as the sawdust coals got lower and lower, =
depending
upon the temperature of the day, were very subject to stress cooling on =
the
upper portions. I was very excited to get a matching pair. =20
Warm regards,
Bonnie Staffel
http://webpages.charter.net/bstaffel/
http://vasefinder.com/bstaffelgallery1.html
DVD Throwing with Coils and Slabs
DVD Beginning Processes
Charter Member Potters Council
Mark Tigges on fri 25 aug 06
On Fri, Aug 25, 2006 at 12:52:35PM -0400, Bonnie Staffel wrote:
> When I was living in Brasstown, NC, I used my favorite mixture of oxides to
> get a black, one ingredient of which is copper carb. I decorated a pot that
> I then sawdust fired. Wow, I got that halo with no fooling around. The two
> pots were then purchased by the new bank in Murphy for their mantle behind
> the tellers. Those pots were tricky to achieve without cracking as they
> were stovepipe forms and as the sawdust coals got lower and lower, depending
> upon the temperature of the day, were very subject to stress cooling on the
> upper portions. I was very excited to get a matching pair.
>
Would you be willing to share this oxide soup?
--
http://www.m2crafts.ca
m2crafts [at] gmail
Diane Palmquist on sun 27 aug 06
I would also love to have that recipe! Could you post it?
Thanks,
Diane
----- Original Message -----
From: "Bonnie Staffel"
To:
Sent: Friday, August 25, 2006 12:52 PM
Subject: Soldner halo slip
When I was living in Brasstown, NC, I used my favorite mixture of oxides to
get a black, one ingredient of which is copper carb. I decorated a pot that
I then sawdust fired. Wow, I got that halo with no fooling around. The two
pots were then purchased by the new bank in Murphy for their mantle behind
the tellers. Those pots were tricky to achieve without cracking as they
were stovepipe forms and as the sawdust coals got lower and lower, depending
upon the temperature of the day, were very subject to stress cooling on the
upper portions. I was very excited to get a matching pair.
Warm regards,
Bonnie Staffel
http://webpages.charter.net/bstaffel/
http://vasefinder.com/bstaffelgallery1.html
DVD Throwing with Coils and Slabs
DVD Beginning Processes
Charter Member Potters Council
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threereeds1 on sun 27 aug 06
I can't promise you consistency due to lack of experience.
Made a test jar one time with standard neph. sy.- gerstley
+ kaolin 5 and zircopax 4%. Ten mason stains at 10% and
one high copper add to the base glaze. Standard paper in can
reduction and the copper sample gave great halo. Even the
green stain sample had a thin halo. Do not think the can was
burped. I agree that the Cu is important.
Hope this helps,
be well,
Tom King
----- Original Message -----
From: "Kenneth Dickerson"
To:
Sent: Thursday, August 24, 2006 8:15 AM
Subject: Soldner Halo Slip
> Does anyone know how to get the halo thin outline on a consistent
> basis with the soldner slip?
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots@pclink.com.
>
John Britt on sun 27 aug 06
Hello,
I am not at home right now, where I have the recipe and instruction on
firing, but I found this site :
http://www.garyrferguson.com/rakuglaz3.htm
which as lots of raku recipes. Just Google a bit and you may find more.
Shadow Raku Slip
Copper Carbonate 90%
EPK 5%
Soda Ash 5%
Can anyone testify to this?
Hope it helps,
John Britt
www.johnbrittpottery.com
Maurice Weitman on sun 27 aug 06
At 10:42 -0400 on 8/27/06, Diane Palmquist wrote:
> I would also love to have that recipe! Could you post it?
Let's see... if I wanted to find a recipe or some information, what
are the options???
Go to the library, ask a friend, post a message to clayart, or,
wait... on the off chance that something has been posted to clayart
or published on the web before, I can look in the archives, or search
the other millions of Internet resources out there. In minutes!!!
These days, it takes a day or more for a post to be distributed to
clayart subscribers, and who knows how long for it to be read and
responded to by others.
Ten years ago, Bob Burruss posted this to clayart:
>[...] Regarding the halo glaze, it is nifty, but doesn't seem to be too
>difficult. We mixed up a batch of slip and stain a couple of weeks ago
>and it worked first time and everytime. Maybe the instructor has to take a
>Soldner workshop first . . . Major items: slip has to be thin, like milk,
>or it peels; time in the reduction barrel "until the yellow smoke stops"
>according to Soldner, but our pieces have been small, we fire at night,
>it's difficult to see much "yellow" smoke, so we use 5 minutes in the
>barrel, and out and watch for the halo to develop, then quench.
>
> Last night I had some bisqued tea bowls, Laguna raku K body, coated
>with Laguna porcelain casting slip (thinned and applied just after
>trimming) sitting about so . . . just to be perverse, I splashed on some
>Soldner stain (without the Soldner slip) and after 5 min. in the barrel,
>bingo, Soldner's halo. Don't know what's happening here, but I like it.
And elsewhere on the web, I found these recipes:
SOLDNER BISQUE SLIP- HALO
Gerstley Borate 14%
EPK Kaolin 57%
Flint 29%
100%
SOLDNER STAIN
Copper 50%
Iron 50%
100%
How long did this take? Less than it took for me to write this message.
But wait, there's more!!! In looking for this (for example using
google with soldner halo slip), one may stumble upon all sorts of
interesting stuff, like a 2003 interview with Soldner conducted by
Mija Riedel for the Smithsonian in which he describes discovering
this and figuring out the process. I'd found these Smithsonian
interviews a few months ago and have relished them since. Among the
20 or 30 others I've enjoyed are: Robert Arneson, Michael Simon,
Alexander Calder, Christo, Walter Chrysler, Chuck Close, Imogen
Cunningham, Val Cushing, Robert Turner, Susan Peterson, Walker Evans,
and Anais Nin.
You've got a treasure out there, folks. Learn to use it!
FYI.
Regards,
Maurice
Mark Tigges on mon 28 aug 06
On Sun, Aug 27, 2006 at 01:27:46PM -0700, Maurice Weitman wrote:
> At 10:42 -0400 on 8/27/06, Diane Palmquist wrote:
> > I would also love to have that recipe! Could you post it?
>
> Let's see... if I wanted to find a recipe or some information, what
> are the options???
>
>
> You've got a treasure out there, folks. Learn to use it!
>
I did exactly that ... the number of differing formulations that I
found prompted me to ask Bonnie. She kindly responded in person, so
as to not clog your inbox.
Her formulation is considerably different than what one finds when
searching for soldner halo slip. What she refers to as slip ... I
wouldn't necessarily call it that ... is mostly oxide. She alluded to
that fact, and what I found in my searches didn't seem to be what she
described.
So I enquired.
Here is what Bonnie sent to me.
1 part cu carb
1 part manganese dioxide
1 part frit 3134
She said that she is never exact when mixing it up, and that sometimes
she adds some gum to aid in applications. And she warned that if too
thick it will run.
She was kind enough to point out that when sprayed, or when dry (so
you can inhale) that this is quite toxic.
NB I did find an oxide concoction alluded to creating halos, and
attributed to soldner ... it contained ROI as well.
But the above is what Bonnie told me she was talking about. Since she
was particularly talking about sawdust firing rather than raku I am
very interested in experimenting.
Best regards.
--
http://www.m2crafts.ca
m2crafts [at] gmail
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