Lili Krakowski on mon 9 oct 06
shellac as resist; toast rack
1. A friend explained to me once the difference between St Rita and St
Jude. About Artist's Statements, it needs to be St Rita.
I have nothing against people writing about clay, I do and have done so.
What I keep and will keep on protesting is writing
being more and more being REQUIRED of potters--making a demand that cannot
be met by a lot of people who are masters of clay, and giving an edge to
lesser potters who are good writers.
2. I need to spray glaze onto a large pot. I have not sprayed glaze in
something like 40 years, when I used a Flit gun. Is there something I add
to the glaze to make it harder when dry so I can handle it to move it into
the kiln? I do not use any additives except bentonite and sodium chloride
in my glazes.
3. Some weeks ago there was discussion of orange shellac as resist. The wax
resist I have had for several years seems to have lost all joie de vivre. I
would rather use something like shellac because that I can get locally. I
tried the shellac once this Summer, it did fine....but could someone tell me
will it work like wax as a resist on leather hard clay and slips? (If I have
to order wax must do now, before they stop shipping it for fear of
freezing.)
4. The person who asked about French butter dishes and salt shakers also
asked about toast racks. I was kinda hoping someone would seize the
croissant by the horns and reveal what a toast rack IS? WHAT is a toast
rack? Should I be afraid of it?
As to the sky falling--M, the T'sach will catch it....
Lili Krakowski
Be of good courage
Richard Aerni on mon 9 oct 06
shellac as resist; toast rack
Lili,
Just two percent of bentonite added to the glaze will make surface hard
enough to be handled and not powder off, in my experience.
Best wishes,
Richard Aerni
Rochester, NY
Kathy Forer on tue 10 oct 06
shellac as resist; toast rack
On Oct 9, 2006, at 2:06 PM, Lili Krakowski wrote:
> 1. A friend explained to me once the difference between St Rita
> and St
> Jude. About Artist's Statements, it needs to be St Rita.
What's the difference?
> I have nothing against people writing about clay, I do and have
> done so.
> What I keep and will keep on protesting is writing
> being more and more being REQUIRED of potters--making a demand
> that cannot
> be met by a lot of people who are masters of clay, and giving an
> edge to
> lesser potters who are good writers.
Cynical, but the standard form itself is so banal that the content
can hardly make a difference. Mundane description, then declaration
of methods, then assertion of identity, then connection with others,
then encapsulated ad-like pitch maybe at the end. It should be fun
and the demand makes it no fun.
Something of a "lost cause" element to the pedestrian form. But then,
if a sonnet could have so much variety, why can't an artist
statement? And obviously, it could as well be an haiku. But too
dependably it's not.
Whatever happened to Manifestos? Great scathing sweeps of volumetric
intensity. Gaudier-Breszka's Vorticist manifesto in Blast, Chelsea
hotel Manifesto, Movement for Classical Renewal Manifesto.
A manifesto is a communication made to the whole world,
whose only pretension is to the discovery of an instant cure for
political, astronomical, artistic, parliamentary, agronomical and
literary syphilis. It may be pleasant, and good-natured, it's
always right, it's strong, vigorous and logical. Apropos of logic,
I consider myself very likeable.
Terrific survey at http://en.wikipedia.org/wiki/
Art_manifesto#Sculptors.27_First_Manifesto_1949
Kathy
--
Kathy Forer
www.foreverink.com
Lee Love on wed 11 oct 06
shellac as resist; toast rack
On 10/11/06, Robert Edney wrote:
> stuff. It will happily co-exist in a glaze with bentonite, by the way (at
> least in my experience). Unlike bentonite, however, it totally fires out.
But it stinks to high heaven.
--
Lee in Mashiko, Japan
http://potters.blogspot.com/
"Let the beauty we love be what we do." - Rumi
"When we all do better. We ALL do better." -Paul Wellstone
Bonnie Staffel on thu 12 oct 06
Lee, I think you are referring to CMC that stinks on aging. I am =
wondering
if you have food grade CMC or Ceramic Grade. I have used CMC for many =
years
and it has NEVER molded or smelled ever. This may be the reason. I =
know
that CMC is used for coating candy, a hardener for pills and many other =
uses
that one doesn't even know about. =20
Your ceramic supplier may have purchased the wrong grade. =20
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
Lee Love on fri 13 oct 06
On 10/13/06, Bonnie Staffel wrote:
> Lee, I think you are referring to CMC that stinks on aging. I am wondering
> if you have food grade CMC or Ceramic Grade. I have used CMC for many years
> and it has NEVER molded or smelled ever. This may be the reason. I know
> that CMC is used for coating candy, a hardener for pills and many other uses
> that one doesn't even know about.
Hi Bonnie,
Are you talking about:
inorganic Veegum (a colloidal Magnesium Aluminum Silicate)? or
organic CMC (Carboxy Methyl Cellulose) ?
When I told Hank I couldn't get Veegum, he told me to us
CMC, if I didn't mind the smell.
My supplier only keeps CMC. One kind. Hank's shino smells
like puke now. :^( and got worse once I put it outside (getting some
sun.)
Thanks,
--
Lee in Mashiko, Japan
http://potters.blogspot.com/
"Let the beauty we love be what we do." - Rumi
"When we all do better. We ALL do better." -Paul Wellstone
Des & Jan Howard on fri 13 oct 06
Bonnie
Our CMC gum has never developed a stink, though it does
seem to become more watery with age.
Chatting about it with the main Oz supplier of ceramic goodies
the comment was made that CMC gum does break down,
but, doesn't necessarily pong during the process.
A suggestion was made to add a small quantity of one of the
milder household disinfectants. The last batch of gum we made
was done this way & seems to be holding its gooiness.
Let's see what our very hot summers do.
Des
ps A visiting chemist said CMC gum is also in KY jelly.
Hmm...is that the food grade or the ceramic grade.
Bonnie Staffel wrote:
>Lee, I think you are referring to CMC that stinks on aging. I am wondering
>if you have food grade CMC or Ceramic Grade. I have used CMC for many years
>and it has NEVER molded or smelled ever. This may be the reason. I know
>that CMC is used for coating candy, a hardener for pills and many other uses
>that one doesn't even know about.
>
>Your ceramic supplier may have purchased the wrong grade.
>
>
--
Des & Jan Howard
Lue Pottery
LUE NSW 2850
Australia
Ph/Fax 02 6373 6419
http://www.luepottery.hwy.com.au
Des & Jan Howard on fri 13 oct 06
Lee
To our shinos we add PVA woodworking glue, heaps of it.
Never had any probs, smells or otherwise.
The PVA makes the glaze ultra frothy when stirred with a
high speed mixer, the froth is retained on the pot on drying.
(Gotta get a pic or two online)
Des
Lee Love wrote:
> When I told Hank I couldn't get Veegum, he told me to us
> CMC, if I didn't mind the smell.
>
> My supplier only keeps CMC. One kind. Hank's shino smells
> like puke now. :^( and got worse once I put it outside (getting some
> sun.)
--
Des & Jan Howard
Lue Pottery
LUE NSW 2850
Australia
Ph/Fax 02 6373 6419
http://www.luepottery.hwy.com.au
Lee Love on fri 13 oct 06
On 10/13/06, Des & Jan Howard wrote:
> A suggestion was made to add a small quantity of one of the
> milder household disinfectants.
I put about a thimble full of bleach in the bucket early on, and it
fixed it for a while. Now it smells like puke again.
--
Lee in Mashiko, Japan
http://potters.blogspot.com/
"Let the beauty we love be what we do." - Rumi
"When we all do better. We ALL do better." -Paul Wellstone
Lee Love on sat 14 oct 06
On 10/13/06, Des & Jan Howard wrote:
> Lee
> To our shinos we add PVA woodworking glue, heaps of it.
> Never had any probs, smells or otherwise.
> The PVA makes the glaze ultra frothy when stirred with a
> high speed mixer, the froth is retained on the pot on drying.
> (Gotta get a pic or two online)
> Des
>
This is interesting. A friend told me yesterday that nori
paste (a glue made from seaweed) can be added to help cause pinholing
and crawling.
Does white glue do this too?
--
Lee in Mashiko, Japan
http://potters.blogspot.com/
"Let the beauty we love be what we do." - Rumi
"When we all do better. We ALL do better." -Paul Wellstone
Des & Jan Howard on sat 14 oct 06
Lee
The PVA glue causes extreme frothing when the glaze is whipped
up with a high speed mixer. The glaze looks like an old time milkshake.
The froth stays in position during drying. It is a tad messy/crumbly
to handle when kiln packing. The bubbles large & small pop
during firing & leave a crater wall that melts down leaving a lighter
ring around a darker centre. The end result, resembles, to me,
filtered sunshot pics. The shinos I like resemble, again to me,
Outback Oz red rock & sand with heat shimmer.
I've now got some pics, check out:
Des
Lee Love wrote:
> This is interesting. A friend told me yesterday that nori
> paste (a glue made from seaweed) can be added to help cause pinholing
> and crawling.
>
> Does white glue do this too?
--
Des & Jan Howard
Lue Pottery
LUE NSW 2850
Australia
Ph/Fax 02 6373 6419
http://www.luepottery.hwy.com.au
Bonnie Staffel on sat 14 oct 06
Well, Lee, seems like this problem is just running around in circles. =
What
is not happening is research into the forms of CMC. My label says CMC =
and
beyond that I have not researched it. I don't even remember where I
purchased it, maybe from Highwater, as I have had it for a while. I had =
a
small package of Veegum but never used it. =20
Perhaps the water used is contaminated with organic matter that causes =
the
mold. Perhaps it is something else in the environment or in the glaze
materials if we can't put the finger on the CMC. =20
This question comes up every once in a while. I think I have had enough
experience with the material to know what I am talking about. I used to =
mix
up a syrup batch to add to my glazes when I wanted a hardener. I =
started
using it in the early 70's and have used it ever since. I now add it =
dry to
my materials before putting them into hot water. Hot water will =
dissipate
the dry materials much faster than cold. Whether the hot water has =
anything
to do with it, I haven't a clue. I just know it works. =20
I found this on the internet:
"Cellulose Gum =20
Sodium carboxymethylcellulose (CMC) is a water-soluble derivation of the
most abundant polymer in nature, cellulose. The main reason for using
CMC/cellulose gum in a formulation is to increase its viscosity. This
feature makes CMC/cellulose gum functional in the following ways:
It acts as a thickener, binder, stabilizer, protective colloid, =
suspending
agent, and rheology, or flow control, agent.=20
It forms films that are resistant to oils, greases, and organic solvents =
It dissolves rapidly is cold or hot water.=20
It is suitable for use in food systems.=20
It is physiologically inert.=20
It is an anionic polyelectrolyte."
This quote is from Multi Kem Corporation Web Site
"Multi-Kem Carboxymethyl Cellulose Gum Features=20
Resistant to heat, enzyme and bacterial decomposition=20
Superb water-holding ability=20
Physiologically inert=20
Wide compatibility with other anionic and nonionic thickening agents"
Note the resistance to bacterial decomposition. This is under =
Industrial
Grade CMC
My take on this, is if your CMC is causing a smell, then they should =
look
into it. This topic has gone round and round with no solution. There =
are
those on the list who have the resources to find this out, I would =
think.
Maybe it is of no importance. =20
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
Des & Jan Howard on sat 14 oct 06
Lee
Well, there you go!
You should be using "Dettol", the antiseptic that made Oz great.
I doubt if there was a kid growing up here that didn't have the usual cut,
scrape, rip or other dermal damage bathed with a 1:20 dilution.
According to our mothers Europe wouldn't have been devastated
by the Black Plague if this product had been around.
Amber in colour, piney smell, water goes milkey white when it is added.
Magic to a kid.
(chloroxylenol 48mg/ml - 4.8% W/V)
Des
Lee Love wrote:
> On 10/13/06, Des & Jan Howard wrote:
>
>> A suggestion was made to add a small quantity of one of the
>> milder household disinfectants.
>
> I put about a thimble full of bleach in the bucket early on, and it
> fixed it for a while. Now it smells like puke again.
--
Des & Jan Howard
Lue Pottery
LUE NSW 2850
Australia
Ph/Fax 02 6373 6419
http://www.luepottery.hwy.com.au
Lee Love on sun 15 oct 06
On 10/15/06, Bonnie Staffel wrote:
> My take on this, is if your CMC is causing a smell, then they should look
> into it. This topic has gone round and round with no solution. There are
> those on the list who have the resources to find this out, I would think.
> Maybe it is of no importance.
If I had the language ability, I would talk to them. But, this is a
traditional pottery town. They would find it amusing for me to tell
them what to do.
I guess I am lucky I don't use it and was prepared for the
smell with Hank's warning.
When I go to test Hank's shino again, a thimble full of bleach
takes care of the smell.
--
Lee in Mashiko, Japan
http://potters.blogspot.com/
"Let the beauty we love be what we do." - Rumi
"When we all do better. We ALL do better." -Paul Wellstone
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