cone 6 glaze recipes

updated wed 9 feb 05

FMIRANDA@alpha.CC.OBERLIN.EDU on wed 10 apr 96

Someone asked for these recipes, which I tested recently. I have a new
batch of tests ready to go and will give the results soon.
Golden fake ash (beautfiul)
cone 6- oxidation/reduction

Ceday Heights redart 27.15
dolomite 23.80
barium sulfate 12.20 (I used strontium carb 9.15)
ball clay 20.40
lithium carb 1.71
gerstely borate 9.64
bone ash 5.10
add:
bentonite 1.00
epsom salts (to water) 1.00


Pinnell strontium Matt glaze, cone 6 oxidation( good - needs to be thick
and go
to true ^6)

lithium carb 1.00%
strontium carb 20.00
neph sye 60.00
ball clay 10.00
flint 9.00

white: titanium dioxide 5.00
weathered bronze green: titanium diox. 5.00, copper carb 5.00
periwinkle blue: cobalt carb 0.15, copper carb. 4.00
dark mottled green: copper carb 8.00
cream/tan: rutile 6.00
charcoal: manganese dioxide 2.00, Copper carb 5.00

Mexico point green (Zakin), cone 6 ox. (good)

soda feldspar 34
spodumene 14
kaolin 6
dolomite 14
gerst. bor 12
zirconium opacifier 20
copper carb 2.5

metallic black, cone 6 ox (wonderful!)

spodumene 50
Gerst. bor 25
flint 25
black iron 10
cobalt ox 2
copper carb 4


Klinesville gold, cone 6/ox (this did not work for me)
magnesium carb 4.49
whiting 20.23
wollastonite 5.62
neph. sy 56.18
cedar heights redart 13.48

add: red iron ox 6.74
zircopax 12.36

smokey brown, cone 6/ox (nice glaze)

custer feld 33.3
flint 22.2
epk 11.1
gers.bor 22.2
RIO 6
manganese diox 3
cobalt ox .5 (point 5)
rutile 1

Floating Red, cone 6 ox (nice glaze)

gerst.bor 54.88
talc 14.63
flint 30.49
RIO 21.95


Celadon, cone 6 ox (o.k. glaze)

gerst. bor 21
wollastonite 8
neph sy 30
kaolin 10
flint 31

celadon: cobalt carb: 0.125, chrome ox: 0.125
teal blue " 0.5, " 0.3
teal green " 0.5, " 0.5

Enjoy! Sharon, daffodils are out!
*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*
Sharon LaRocca-Miranda *
Oberlin Conservatory *
Oberlin, Ohio 44074 *
FMiranda@oberlin.edu *
. . . . . . . . . . . . . . . .*

Wade Blocker on fri 9 jun 00

Andie,
The tenmoku recipe that you tested looks like a cone 9 glaze to me.That
might be the reason why you have no luck with it. I have two excellent
tenmokus for oxidation, however they have to be fired to cone 9, so that is
no help to you. I would substitute a soda spar for the cornwall stone and
see what happens. Mia in ABQ where the monsoon season is starting early.

Tim Pozza on wed 31 oct 01

With a great base recipe you can do so much.

Some people think it is a wise idea to match your ingredients. I find using what
you have available is also a challenging way to get to know what you have quite
intimately. For instance Tony Hanson published his 5x20 recipe to go with Insight,
a glaze calculation program. His recipe is similar in makeup to just about every
modern Feldspar recipe derived with two exceptions. There is no lead content and
there is no Gertsley Borate (cum Colemanite).

Have a look at Tony's extensive site on glaze technology at:

http://www.digitalfire.com/
http://www.digitalfire.com/education/glaze/cone6.htm

Then check out the Clayart archives from last month for Alisa Clausen's color test
runs using Tony's base glaze. There may be something in it for you.

One last piece of advice. I you don't understand your glazes try out the excellent
online e-Learning resource put out by Lawrence Ewing, the author of Matrix (another
top knotch glaze calculation program -- this one from New Zealand).

http://www.matrix2000.co.nz/GlazeTeach/Index.htm

I recommend it as the best resource for learning glazes and the UMF aside from the
textbooks. In fact it is probably better once you have read an actual text book.

All the best to you,

tim



So much depends on what you are trying to get out of your glaze.

With a great base recipe you can also pursue a palette using line and traixial
blending techniques.

Personally, I am now using a modified satin matte recipe derived from VC #71 *(from
the Val Cushing Handbook). I dropped the Frit and Calcium Carbonate. The glaze is
significantly altered, but it retains the same expansion as the original. It also
fires a bit hotter too . . . which I like about it.

Lorrie Burlingham wrote:

> Hi everybody,
>
> Does anyone out there have any cone 6 glaze recipes they are willing to
> part with, that can be used on M332 brown clay? For the last 4 years or
> so (since I started making pottery), I have been painting everything I make
> with underglaze and clear glazing, but am ready to try mixing up some
> glazes for a something different-however, I'm not brave enough or inclined
> to do alot of experimenting with chemicals. If you know where I can obtain
> even a few good glaze recipes for cone 6 electric firing I would be very
> grateful. Please reply to me off the list to:
> [Lorrie.Burlingham@usask.ca] Thanks alot!
>
> ______________________________________________________________________________
> 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.

--
Tim Pozza
Port Hope, Ontario Canada
mailto: tim.pozza@sympatico.ca

Lorrie Burlingham on thu 1 nov 01

Hi everybody,

Does anyone out there have any cone 6 glaze recipes they are willing to
part with, that can be used on M332 brown clay? For the last 4 years or
so (since I started making pottery), I have been painting everything I make
with underglaze and clear glazing, but am ready to try mixing up some
glazes for a something different-however, I'm not brave enough or inclined
to do alot of experimenting with chemicals. If you know where I can obtain
even a few good glaze recipes for cone 6 electric firing I would be very
grateful. Please reply to me off the list to:
[Lorrie.Burlingham@usask.ca] Thanks alot!

Cindy Strnad on thu 1 nov 01

Dear Lorrie,

You'll find a wealth of glaze recipes, tested and
untested, in the archives. Also, try John
Hesselberth's web page:
http://www.frogpondpottery.com for some good,
tried and true glazes. Search the web and you'll
find thousands. I recommend Opal Blue, in
particular, and if you enter that in a search of
the Clayart archives, you'll turn up lots of
conversation. Try entering "Alisa" to find many,
many tests as well. You could enter my name and
will find quite a lot, but also lots of other
stuff you're probably not interested in right now.
To access the archives, click on the link at the
very bottom of this message. They're mondo simple
to use. You'll be delighted--I promise.

Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
cindy@earthen-vessels-pottery.com
http://www.earthen-vessels-pottery.com

Ababi on fri 2 nov 01

Dear Lorrie
Search into the archives:
http://www.ceramics.org/clayart/

There, write
sharon@shoval.org.il
ababisha@shoval.ardom.co.il
ababisharon@hotmail.com
You will find a lot of glazes or be more specific and I will send you
some
Ababi Sharon
Kibbutz Shoval- Israel
Glaze addict
sharon@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.milkywayceramics.com/cgallery/asharon.htm
http://www.israelceramics.org/



---------- Original Message ----------

>Hi everybody,

>Does anyone out there have any cone 6 glaze recipes they are willing to
>part with, that can be used on M332 brown clay? For the last 4 years
>or
>so (since I started making pottery), I have been painting everything I
>make
>with underglaze and clear glazing, but am ready to try mixing up some
>glazes for a something different-however, I'm not brave enough or
>inclined
>to do alot of experimenting with chemicals. If you know where I can
>obtain
>even a few good glaze recipes for cone 6 electric firing I would be very
>grateful. Please reply to me off the list to:
>[Lorrie.Burlingham@usask.ca] Thanks alot!

Earl Brunner on thu 3 feb 05

They way I do it, is if it's a base glaze that will stand on its own, or
which I might use different variations of colorants or percentages of
colorants then I total the BASE to 100% and keep the colorants extra.

If on the other hand I have a glaze like my cone 6 Oatmeal glaze, which I
never use any other way than with the colorants, then I include the
colorants in the 100%. A high iron glaze would be another example of one
where I would include the iron in the %.

Earl Brunner
Las Vegas, NV
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Kelly
Sent: Thursday, February 03, 2005 1:59 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Cone 6 Glaze recipes

Recently I have dove right into Mastering Cone 6 Glazes by hesselberth &
Roy...and I think I am missing something. Let's say I am making a High
Calcium Semimatte Base. I understand that when making it, the glaze
ingrediants must equal 100.0, but I am confused with the colorants. If I
am supposed to add 6% rutile and 4% maganes dioxide to make one color and
3% copper carbonate and 1.5% cobalt carbonate, what exactly does that
mean? I would appreciate any thoughts because I am thoroughly confused!

____________________________________________________________________________
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Kelly on thu 3 feb 05

Recently I have dove right into Mastering Cone 6 Glazes by hesselberth &
Roy...and I think I am missing something. Let's say I am making a High
Calcium Semimatte Base. I understand that when making it, the glaze
ingrediants must equal 100.0, but I am confused with the colorants. If I
am supposed to add 6% rutile and 4% maganes dioxide to make one color and
3% copper carbonate and 1.5% cobalt carbonate, what exactly does that
mean? I would appreciate any thoughts because I am thoroughly confused!

dtberg2 on fri 4 feb 05

Think of the numbers in terms of grams instead of percentages.

For example, the base glaze has a total of 100 grams. Then you add 6
grams of rutile and 4 grams of manganese dioxide for the first. Add 3
grams of copper carbonate and 1.5% cobalt carbonate for the second.

Multiply all the numbers by the appropriate factor to make larger
batches - e.g. multiply everything by 100 to make a 10 kg batch.
dTb

--- In clayart@yahoogroups.com, Kelly wrote:
> Recently I have dove right into Mastering Cone 6 Glazes by
hesselberth &
> Roy...and I think I am missing something. Let's say I am making a
High
> Calcium Semimatte Base. I understand that when making it, the glaze
> ingrediants must equal 100.0, but I am confused with the
colorants. If I
> am supposed to add 6% rutile and 4% maganes dioxide to make one
color and
> 3% copper carbonate and 1.5% cobalt carbonate, what exactly does
that
> mean? I would appreciate any thoughts because I am thoroughly
confused!
>
>
______________________________________________________________________
________
> Send postings to clayart@l...
>
> 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@p...

Jan Goodland-Metz on fri 4 feb 05

Kelly wrote:
Recently I have dove right into Mastering Cone 6 Glazes by hesselberth &
Roy...and I think I am missing something. Let's say I am making a High
Calcium Semimatte Base. I understand that when making it, the glaze
ingrediants must equal 100.0, but I am confused with the colorants. If I
am supposed to add 6% rutile and 4% maganes dioxide to make one color and
3% copper carbonate and 1.5% cobalt carbonate, what exactly does that
mean? I would appreciate any thoughts because I am thoroughly confused!


Hi Kelly,

If you are making say a 2000 gm batch of glaze. Then the percentages of the
recipe in weights add up to 2000.
Say the recipe is
A at 10%
B at 40%
C at 50%

With colorants at X at 5%, and Y at 2%

The weights are:
A is 200 gms.
B is 800 gms.
C is 1000 gms.

The colorant weights are in addition to the 2000 gms.
X would be 2000 x .05= 100gms.
Y would be 2000 x .02= 40 gms.

Does that make sense?

Jan
Potting in icy wet, Rhode Island

william schran on fri 4 feb 05

Kelly wrote:> I understand that when making it, the glaze
ingrediants must equal 100.0, but I am confused with the colorants. If I
am supposed to add 6% rutile and 4% maganes dioxide to make one color and
3% copper carbonate and 1.5% cobalt carbonate, what exactly does that
mean? I would appreciate any thoughts because I am thoroughly confused!<

Kelly - For many starting out, this, and many other things can be confusing.

Put simply - Most, but not all, base glaze recipes add up to 100%. If
they do, then fine, convert the percentage into weight. If it calls
for 20% whiting as part of a recipe that totals 100%, then you'd use
20 grams, pounds, tons of whiting in the glaze that totals 100 grams,
pounds tons.

Most, but again not all, glazes do not contain colorants in the base
and are not part of the 100% calculation. Colorants are added in
small percentages to the base glaze, and usually the colorants are
not calculated into the 100% base glaze

So in you query, the base glaze is 100%, that converts to 100 grams
(or whatever multiplier you want to use). To this 100 gram amount you
would add 6% rutile = 6 grams and 4% managnese diox. = 4 grams, the
total weight of the glaze with colorants added would be 110 grams.
To another batch of 100 grams of glaze you would add 3% copper
carbonate = 3 grams and 1.5% cobalt carbonate = 1.5 grams.

Hope this helps, Bill

Ivor and Olive Lewis on sat 5 feb 05

<include the iron in the %.>>

Dear Earl,
Where do you put the Iron if you have to convert such a recipe into
the Unity configuration.
Since we are told it is a "Flux" does it become appended to the R2O
group or do you put it with the Al2O3 which is very much an "Anti
Flux"
Best regards,
Ivor Lewis.
Redhill,
S. Australia.

Since you ask, I put it where ever the software puts it. You have to factor
in something that amounts to 10-15% of the total.

Is it a "flux" in an oxidation firing? Whatever, I usually base my
observations on visual anyway, formulation is a tool, I use the tool when it
helps.

Earl Brunner
Las Vegas, NV

-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Ivor and Olive
Lewis
Sent: Friday, February 04, 2005 5:10 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Cone 6 Glaze recipes

<include the iron in the %.>>

Dear Earl,
Where do you put the Iron if you have to convert such a recipe into
the Unity configuration.
Since we are told it is a "Flux" does it become appended to the R2O
group or do you put it with the Al2O3 which is very much an "Anti
Flux"
Best regards,
Ivor Lewis.
Redhill,
S. Australia.

____________________________________________________________________________
__
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.

Usually a glaze that is high in iron, say 10-15 percent (although I have
seen some as high as 25), don't work at all when you drop the iron out. So
what would you do?

Earl Brunner
Las Vegas, NV

-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Ivor and Olive
Lewis
Sent: Friday, February 04, 2005 5:10 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Cone 6 Glaze recipes

<include the iron in the %.>>

Dear Earl,
Where do you put the Iron if you have to convert such a recipe into
the Unity configuration.
Since we are told it is a "Flux" does it become appended to the R2O
group or do you put it with the Al2O3 which is very much an "Anti
Flux"
Best regards,
Ivor Lewis.
Redhill,
S. Australia.

____________________________________________________________________________
__
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.