Eva Gallagher on sat 19 nov 11
Hi - I never thought of the zircopax - I see that according to Britt's book
the white has 18.8 and the yellow only 17.9 zirco. So even less should be
OK. In my June overfired wood kiln the white salt turned very shiny - so
defintiely can take more heat to smooth out. I will also have to test it -
see if tin can replace and still get the same nice response to iron. This
glaze is similar to what we call Bozak Stony White - lots of Nephsye and
dolomite and 4% tin to opacify and it gets the same great response to iron
as the white/yellow salt.
Eva Gallagher
Deep River, Ontario
http://newfoundoutpotter.blogspot.com/
http://www.valleyartisans.com/gallagher/Gallagher.htm
----- Original Message -----
From: "tony clennell"
To:
Sent: Saturday, November 19, 2011 8:47 PM
Subject: Re: Yellow Salt Glaze problem.
> Eva: We too use this glaze at Sheridan and have had similar problems. I
> think there may be too much zircopax in the recipe. I'm going to revisit
> this glaze next week at school and see what gives. When I put an ash glaz=
e
> over the salt yellow it is OK. I'll do some tests next week and get back
> to
> you.
> Tc
>
> On Sat, Nov 19, 2011 at 5:29 PM, Eva Gallagher wrote:
>
>> Hi,
>> We use yellow salt but mostly white salt at cone 10 gas. No pinholing . =
I
>> find that when underfiring it a bit that it tends to get rough or even
>> have
>> very small pinholing when it is thick in the bottom of a pot.
>> Eva Gallagher
>> Deep River, Ontario
>> http://newfoundoutpotter.**blogspot.com/ot.com/>
>> http://www.valleyartisans.com/**gallagher/Gallagher.htmyartisans.com/gallagher/Gallagher.htm>
>> ----- Original Message -----
>> From: "E Krieger"
>> To:
>> Sent: Saturday, November 19, 2011 9:15 AM
>> Subject: Yellow Salt Glaze problem.
>>
>>
>> Trying to find out if anyone else uses "Yellow Salt" and if so do they
>> have
>> any problems with pinholing. That is my favorite glaze and the pin hole
>> problem
>> has gotten so bad I am going to have to dump it. I've changed my bisque
>> procedure by holding at cone 06 for 30 minutes after reaching temp to
>> maybe
>> help cut down on gas from clay. I've thought about adding more flux to
>> the
>> recipe but don't know which flux I should try or how much to use. Also,
>> thinking
>> about firing a little hotter.
>>
>> Is it worth the effort or should I just use another glaze. Or, do I nee=
d
>> to
>> use a new
>> batch of raw material?
>>
>> Hope someone has some answers!!
>>
>> Thanks!
>>
>> Eddie Krieger
>> Abilene, TX
>>
>
>
Lee on sat 19 nov 11
On Sat, Nov 19, 2011 at 8:15 AM, E Krieger wrote:
> procedure by holding at cone 06 for 30 minutes after reaching temp to may=
=3D
be
> help cut down on gas from clay.
There is no "gas" in the clay but air. The pinholes come water going
into the bisque and air bubbling out.
You can sponge your clay with water and use it a little thinner.
Soda yellow is one of my mainstays. You can see a half dozen pieces
with this iron yellow used in different ways here:
http://store.northernclaycenter.org/Ceramics/Gallery+Artists+A+-+L/Lee+Love=
=3D
.html
--
=3DA0Lee Love in Minneapolis
http://mingeisota.blogspot.com/
=3DA0"Ta tIr na n-=3DF3g ar chul an tI=3D97tIr dlainn trina ch=3DE9ile"=3D9=
7that is, =3D
"The
land of eternal youth is behind the house, a beautiful land fluent
within itself." -- John O'Donohue
E Krieger on sat 19 nov 11
Trying to find out if anyone else uses "Yellow Salt" and if so do they =3D
have
any problems with pinholing. That is my favorite glaze and the pin hole =
=3D
problem
has gotten so bad I am going to have to dump it. I've changed my bisque
procedure by holding at cone 06 for 30 minutes after reaching temp to =3D
maybe
help cut down on gas from clay. I've thought about adding more flux to =3D
the
recipe but don't know which flux I should try or how much to use. Also, =
=3D
thinking
about firing a little hotter.
Is it worth the effort or should I just use another glaze. Or, do I =3D
need to use a new
batch of raw material?
Hope someone has some answers!!
Thanks!
Eddie Krieger
Abilene, TX
Eva Gallagher on sat 19 nov 11
Hi,
We use yellow salt but mostly white salt at cone 10 gas. No pinholing . I
find that when underfiring it a bit that it tends to get rough or even have
very small pinholing when it is thick in the bottom of a pot.
Eva Gallagher
Deep River, Ontario
http://newfoundoutpotter.blogspot.com/
http://www.valleyartisans.com/gallagher/Gallagher.htm
----- Original Message -----
From: "E Krieger"
To:
Sent: Saturday, November 19, 2011 9:15 AM
Subject: Yellow Salt Glaze problem.
Trying to find out if anyone else uses "Yellow Salt" and if so do they have
any problems with pinholing. That is my favorite glaze and the pin hole
problem
has gotten so bad I am going to have to dump it. I've changed my bisque
procedure by holding at cone 06 for 30 minutes after reaching temp to maybe
help cut down on gas from clay. I've thought about adding more flux to the
recipe but don't know which flux I should try or how much to use. Also,
thinking
about firing a little hotter.
Is it worth the effort or should I just use another glaze. Or, do I need t=
o
use a new
batch of raw material?
Hope someone has some answers!!
Thanks!
Eddie Krieger
Abilene, TX
Steve Mills on sat 19 nov 11
The suggestion that temperature/glaze maturity might be part of the questio=
n=3D
prompts the following questions:
How do you measure temperature?
Controller or cone.=3D20
If the former, how old is the thermocouple and is it type K?
Type K have a very short accurate life. The reason they are norm in America=
n=3D
kilns is they are vey cheap to make, however they are out of accurate rang=
e=3D
if used for stoneware.=3D20
Because many glazes have a wide maturity range these thermocouple shortcomi=
n=3D
gs are not obvious and often overlooked when problems arise.=3D20
I suggest firing with cones, not the controller, and see what comes out.=3D=
20
Don't chuck the glaze away just yet!!
Steve M
Steve Mills
Bath
UK
www.mudslinger.me.uk
Sent from my Ipod touch
>=3D20
> ----- Original Message -----
> From: "E Krieger"
> To:
> Sent: Saturday, November 19, 2011 9:15 AM
> Subject: Yellow Salt Glaze problem.
>=3D20
>=3D20
> Trying to find out if anyone else uses "Yellow Salt" and if so do they ha=
v=3D
e
> any problems with pinholing. That is my favorite glaze and the pin hole
> problem
> has gotten so bad I am going to have to dump it. I've changed my bisque
> procedure by holding at cone 06 for 30 minutes after reaching temp to may=
b=3D
e
> help cut down on gas from clay. I've thought about adding more flux to t=
h=3D
e
> recipe but don't know which flux I should try or how much to use. Also,
> thinking
> about firing a little hotter.
>=3D20
> Is it worth the effort or should I just use another glaze. Or, do I need=
t=3D
o
> use a new
> batch of raw material?
>=3D20
> Hope someone has some answers!!
>=3D20
> Thanks!
>=3D20
> Eddie Krieger
> Abilene, TX
tony clennell on sat 19 nov 11
Eva: We too use this glaze at Sheridan and have had similar problems. I
think there may be too much zircopax in the recipe. I'm going to revisit
this glaze next week at school and see what gives. When I put an ash glaze
over the salt yellow it is OK. I'll do some tests next week and get back to
you.
Tc
On Sat, Nov 19, 2011 at 5:29 PM, Eva Gallagher wrote:
> Hi,
> We use yellow salt but mostly white salt at cone 10 gas. No pinholing . I
> find that when underfiring it a bit that it tends to get rough or even ha=
ve
> very small pinholing when it is thick in the bottom of a pot.
> Eva Gallagher
> Deep River, Ontario
> http://newfoundoutpotter.**blogspot.com/t.com/>
> http://www.valleyartisans.com/**gallagher/Gallagher.htmartisans.com/gallagher/Gallagher.htm>
> ----- Original Message -----
> From: "E Krieger"
> To:
> Sent: Saturday, November 19, 2011 9:15 AM
> Subject: Yellow Salt Glaze problem.
>
>
> Trying to find out if anyone else uses "Yellow Salt" and if so do they ha=
ve
> any problems with pinholing. That is my favorite glaze and the pin hole
> problem
> has gotten so bad I am going to have to dump it. I've changed my bisque
> procedure by holding at cone 06 for 30 minutes after reaching temp to may=
be
> help cut down on gas from clay. I've thought about adding more flux to t=
he
> recipe but don't know which flux I should try or how much to use. Also,
> thinking
> about firing a little hotter.
>
> Is it worth the effort or should I just use another glaze. Or, do I need
> to
> use a new
> batch of raw material?
>
> Hope someone has some answers!!
>
> Thanks!
>
> Eddie Krieger
> Abilene, TX
>
Lee on sun 20 nov 11
On Sun, Nov 20, 2011 at 4:51 PM, wrote:
> Not all clays are the same
That is true.
In Mashiko, all my clay had "dirt" in them. They were not refined,
came right out of the ground (were never dried out.) Here, I often add to
my store clay, including organics, to give the clay "non-factory"
character. In Korea, the clay we were given was so "clean", that the
Japanese wedged it on the ground, that was a tan, rocky dirt, to give
it some tooth.
I will single test fire Soda Yellow next time I fire, and
I will add organics to the clay, to see if I can make the pin holing
happen.
--
=3DA0Lee Love in Minneapolis
http://mingeisota.blogspot.com/
=3DA0"Ta tIr na n-=3DF3g ar chul an tI=3D97tIr dlainn trina ch=3DE9ile"=3D9=
7that is, =3D
"The
land of eternal youth is behind the house, a beautiful land fluent
within itself." -- John O'Donohue
David Finkelnburg on sun 20 nov 11
Eddie,
I like this glaze but I tend to layer it.
Are there visible pinholes in the applied glaze before firing? If so,
you should make changes to prevent those.
Are you twice firing? If so, are you wetting the bisque before
glazing? You should, to insure the glaze wets it when applied.
Also, are you adding any soap or other surfactant to the glaze? A
little high strength, low foaming soap will help the glaze wet the surface
of the ware, also.
Finally, make sure the glaze density is not too high. It is possible
for glaze to dry over time and apply thicker, which will tend to increase
pinholing.
If you add more flux to this glaze it will likely go matte. It is
right on the verge of mattness already.
Good glazing!
Dave Finkelnburg
http://www.mattanddavesclays.com
> From: "E Krieger"
> To:
> Sent: Saturday, November 19, 2011 9:15 AM
> Trying to find out if anyone else uses "Yellow Salt" and if so do they
have
> any problems with pinholing. That is my favorite glaze and the pin hole
> problem has gotten so bad I am going to have to dump it. I've changed my
bisque
> procedure by holding at cone 06 for 30 minutes after reaching temp to
maybe
> help cut down on gas from clay. I've thought about adding more flux to
the
> recipe but don't know which flux I should try or how much to use. Also,
> thinking about firing a little hotter.
Ron Roy on sun 20 nov 11
Hi Eddoie,
Send me the recipe and I'll make it flow a bit more - you could also
try bisqing to cone 04 and/or soaking a bit longer.
RR
Quoting E Krieger :
> Trying to find out if anyone else uses "Yellow Salt" and if so do they ha=
ve
> any problems with pinholing. That is my favorite glaze and the pin
> hole problem
> has gotten so bad I am going to have to dump it. I've changed my bisque
> procedure by holding at cone 06 for 30 minutes after reaching temp to may=
be
> help cut down on gas from clay. I've thought about adding more flux to t=
he
> recipe but don't know which flux I should try or how much to use.
> Also, thinking
> about firing a little hotter.
>
> Is it worth the effort or should I just use another glaze. Or, do I
> need to use a new
> batch of raw material?
>
> Hope someone has some answers!!
>
> Thanks!
>
> Eddie Krieger
> Abilene, TX
>
Eva Gallagher on sun 20 nov 11
Hi Ron, could you please post it to everyone as well - I know a lot of us
use it. Thanks!
Eva Gallagher
Deep River, Ontario
http://newfoundoutpotter.blogspot.com/
http://www.valleyartisans.com/gallagher/Gallagher.htm
----- Original Message -----
From: "Ron Roy"
To:
Sent: Sunday, November 20, 2011 11:56 AM
Subject: Re: Yellow Salt Glaze problem.
> Hi Eddoie,
>
> Send me the recipe and I'll make it flow a bit more - you could also
> try bisqing to cone 04 and/or soaking a bit longer.
>
> RR
>
> Quoting E Krieger :
>
>> Trying to find out if anyone else uses "Yellow Salt" and if so do they
>> have
>> any problems with pinholing. That is my favorite glaze and the pin
>> hole problem
>> has gotten so bad I am going to have to dump it. I've changed my bisque
>> procedure by holding at cone 06 for 30 minutes after reaching temp to
>> maybe
>> help cut down on gas from clay. I've thought about adding more flux to
>> the
>> recipe but don't know which flux I should try or how much to use.
>> Also, thinking
>> about firing a little hotter.
>>
>> Is it worth the effort or should I just use another glaze. Or, do I
>> need to use a new
>> batch of raw material?
>>
>> Hope someone has some answers!!
>>
>> Thanks!
>>
>> Eddie Krieger
>> Abilene, TX
>>
>
>
Lee on sun 20 nov 11
On Sun, Nov 20, 2011 at 10:56 AM, Ron Roy wrote:
> Hi Eddoie,
>
> Send me the recipe and I'll make it flow a bit more - you could also
> try bisqing to cone 04 and/or soaking a bit longer.
>
>
I bisque to 012 and do not have pinhole problems with Soda Yellow.
--
Lee Love in Minneapolis
http://mingeisota.blogspot.com/
"Ta tIr na n-=3DF3g ar chul an tI=3D97tIr dlainn trina ch=3DE9ile"=3D97tha=
t is, "T=3D
he land
of eternal youth is behind the house, a beautiful land fluent within
itself." -- John O'Donohue
Ron Roy on sun 20 nov 11
Not all clays are the same - some need a cleaner firing - everyone =3D20
should understand that by now?
RR
Quoting Lee :
> On Sun, Nov 20, 2011 at 10:56 AM, Ron Roy wrote:
>
>> Hi Eddoie,
>>
>> Send me the recipe and I'll make it flow a bit more - you could also
>> try bisqing to cone 04 and/or soaking a bit longer.
>>
>>
> I bisque to 012 and do not have pinhole problems with Soda Yellow.
> --
> Lee Love in Minneapolis
> http://mingeisota.blogspot.com/
>
> "Ta tIr na n-=3DC3=3DB3g ar chul an tI=3DE2=3D80=3D94tIr dlainn trina ch=
=3DC3=3DA9ile"=3D
=3DE2=3D80=3D94that is, "The land
> of eternal youth is behind the house, a beautiful land fluent within
> itself." -- John O'Donohue
>
Ruth Ballou on mon 21 nov 11
I've just started a new glaze study group using Ian Currie's grid method.
Lucky you, the first glaze we're testing is Yellow Salt! It's been applied
to three different clay bodies, so there should be a good range of results
to examine. I will post the results and pics after the firing.
Ruth Ballou
Charleston, SC
On Saturday, November 19, 2011, E Krieger wrote:
> Trying to find out if anyone else uses "Yellow Salt" and if so do they
have
> any problems with pinholing. That is my favorite glaze and the pin hole
problem
> has gotten so bad I am going to have to dump it. I've changed my bisque
> procedure by holding at cone 06 for 30 minutes after reaching temp to
maybe
> help cut down on gas from clay. I've thought about adding more flux to
the
> recipe but don't know which flux I should try or how much to use. Also,
thinking
> about firing a little hotter.
>
> Is it worth the effort or should I just use another glaze. Or, do I need
to use a new
> batch of raw material?
>
> Hope someone has some answers!!
>
> Thanks!
>
> Eddie Krieger
> Abilene, TX
>
David Woof on mon 21 nov 11
Hi Ron=3D2C everyone=3D2C
Yes!!! as Ron said: < "Not all clays are the same - some need a cleaner fir=
=3D
ing - everyone =3D20
should understand that by now?">
In the modern vernacular Ron=3D2C "I feel you"!!!
Regrettably and frustratingly=3D2C not all folks come to "school" (Clayart)=
t=3D
o read=3D2C listen=3D2C=3D20
learn and then share.=3D20
Is it remotely possible that some folks are simply not firing high enough a=
=3D
nd or=3D20
long enough=3D2C or misunderstanding that "Yellow Salt" works best in a sal=
t =3D
firing and=3D20
is exceptionally good in wood fire. It will stand up to a lot of heat.
I have fired the Yellow Salt that I know to small cone 14 down hard and dri=
=3D
pping!!!
By its composition Yellow Salt works more as a refractory "engobe" than a s=
=3D
tand alone glaze.=3D20
Hence a wider firing range with some defects to attend in the lower range=
=3D
=3D2C especially when fired
without salt which contributes its own surface fluxing action.=3D20
And as Ron just said=3D2C know your clay! =3D20
Dirty clay needs higher and slower bisque=3D2C give it time to burn out the=
c=3D
ontaminating materials.=3D20
And then fire hot in the high firing as well.
And if anyone is trying to fire by pyrometer or computer controls without w=
=3D
itness
cones as a back up ya'll need to go back to your seats and get schooled.=3D=
20
It may be uncomfortable but it won't hurt.
David Woof
It is my observation that we are getting an increasing number of folks reti=
=3D
ring=3D20
from corporate and other professions who were experts and had power in thei=
=3D
r field.
Sincere welcome.=3D20
But the shoe is on the other foot now and=3D2C as you know=3D2C you can't g=
ain =3D
a=3D20
life time of clay and art experience without studying hard and=3D20
passionately and with humility. And many hours in the studio.
=3DA0
The advantage you have is that you have practiced decision making and=3D20
critical thinking skills already in place=3D2C you know how to study=3D2C r=
esea=3D
rch=3D2C learn=3D20
and initiate action.=3D20
Again=3D2C welcome=3D3B and I for one look forward to seeing new expression=
s fr=3D
om=3D20
personal wells long untapped and brimming over...=3D20
Don't forget to let go=3D2C play a bit and do have fun!=3D20
It shows up in the work we produce and the especially in work that shows up=
=3D
=3D20
when we are not looking=3D3B seeking masterpieces.
___________________________________________________________
=3D20
2b. Re: Yellow Salt Glaze problem.
Posted by: "Ron Roy" ronroy@CA.INTER.NET=3D20
Date: Sun Nov 20=3D2C 2011 2:55 pm ((PST))
=3D20
Not all clays are the same - some need a cleaner firing - everyone =3D20
should understand that by now?
=3D20
RR
=3D20
Quoting Lee :
=3D20
> On Sun=3D2C Nov 20=3D2C 2011 at 10:56 AM=3D2C Ron Roy t> wro=3D
te:
>
>> Hi Eddoie=3D2C
>>
>> Send me the recipe and I'll make it flow a bit more - you could also
>> try bisqing to cone 04 and/or soaking a bit longer.
>>
>>
> I bisque to 012 and do not have pinhole problems with Soda Yellow.
> --
> Lee Love in Minneapolis
> http://mingeisota.blogspot.com/
>
> "Ta tIr na n-=3DC3=3DB3g ar chul an tI=3DE2=3D80=3D94tIr dlainn trina ch=
=3DC3=3DA9ile"=3D
=3DE2=3D80=3D94that is=3D2C "The land
> of eternal youth is behind the house=3D2C a beautiful land fluent within
> itself." -- John O'Donohue
>
=3D
John Hesselberth on mon 21 nov 11
On Nov 21, 2011, at 12:54 PM, David Woof wrote:
> And as Ron just said, know your clay! =3D20
> Dirty clay needs higher and slower bisque, give it time to burn out =3D
the contaminating materials.=3D20
> And then fire hot in the high firing as well.
Hi David and Everyone,
There is another factor in bisque firing that I don't see mentioned very =
=3D
often. The heavier you stack your kiln, the more difficulty you will =3D
have getting a good clean bisque firing. It takes a long time to get a =3D
stack of several bowls or cups or plates up to full kiln temperature and =
=3D
even more difficult to get oxygen into those inside areas. So, if you =3D
are having pinhole problems, not only might you consider firing slower =3D
and hotter, but also consider lightening up that bisque load with more =3D
space between pots and minimal stacking.
Regards,
John
"If you eat a frog first thing in the morning, that will probably be the =
=3D
worst thing you do all day." Mark Twain
John Hesselberth
john@frogpondpottery.com
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