Randy McCall on sun 16 nov 08
If I sub Custer Feldspar in this glaze for Neph synite will it work at Cone
6 to Cone 7.
Recipe Name: CHAPPELLS'S BLUE W/O IRON
Cone: 6 Color: BLUE
Firing: Oxidation Surface: Glossy
Amount Ingredient
47.3 Nepheline Syenite
27 Gerstley Borate--1999
20.3 Silica
5.4 Kaolin--EPK
100 Total
Additives
4 Rutile
1 Cobalt Carbonate
I tried the old recipe to a hard Cone 7, but it was somewhat bleached out.
Any help will be appreciated.
Randy
Cotton Patch Pottery
members.tripod.com/~McCallJ/index.html
Randy McCall on tue 18 nov 08
Thanks Alisa,,,, I put it in my kiln to test this morning. Should get it
out tomorrow. Also testing the Cone 6 Salvation Glaze for Cone 6. The one
that was adjusted to make it more stable.
I have been trying to come up with a Albany Slip glaze at Cone 6 using
Laguna's Substitute, but so far it is too shiny and too transparent. I am
trying to come up with one that looks just like Albany at Cone 10 shiny but
opaque.
Have you done any work with Albany Subs?
My next test will be 80 Albany and 20 nephyl syn.
Randy
Cotton Patch Pottery
members.tripod.com/~McCallJ/index.html
----- Original Message -----
From: "Alisa Clausen"
To:
Sent: Tuesday, November 18, 2008 3:58 PM
Subject: Re: Glaze?
Hi Randy
Just looking at a gram for gram sub. from Neph. Sye to Custer, I do not
think you will get a glaze a good melt at cone 6. I think you will have to
adjust a lot more to get a cone 6 glaze.
But here it is on Glaze Master so you can see the unity formulas.
Best regards, Alisa in Denmark
Recipe Name: Chappel Blue w/o RIO
Cone: 9 Color:
Firing: Surface:
Amount Ingredient
47.3 Nepheline Syenite
27 Gerstley Borate--9/97
20.3 Silica
5.4 Kaolin--EPK
100 Total
Additives
4 Rutile
1 Cobalt Carbonate
Unity Oxide
.404 Na2O
.101 K2O
.105 MgO
.391 CaO
1.000 Total
.558 Al2O3
.465 B2O3
.005 Fe2O3
3.817 SiO2
.001 TiO2
0 P2O5
6.8 Ratio
7.6 Exp
Comments:
-----------------------------------
Calculations by GlazeMaster™
www.masteringglazes.com
------------------------------------
Recipe Name: Chappel Blue sub with Custer
Cone: 9 Color:
Firing: Surface:
Amount Ingredient
47.3 Feldspar--Custer
27 Gerstley Borate--9/97
20.3 Silica
5.4 Kaolin--EPK
100 Total
Additives
4 Rutile
1 Copper Carbonate
Unity Oxide
.21 Na2O
.247 K2O
.114 MgO
.429 CaO
1.000 Total
.497 Al2O3
.529 B2O3
.006 Fe2O3
4.663 SiO2
.001 TiO2
0 P2O5
9.4 Ratio
7.1 Exp
On Sun, Nov 16, 2008 at 5:03 PM, Randy McCall wrote:
> If I sub Custer Feldspar in this glaze for Neph synite will it work at
> Cone
> 6 to Cone 7.
>
> Recipe Name: CHAPPELLS'S BLUE W/O IRON
>
> Cone: 6 Color: BLUE
> Firing: Oxidation Surface: Glossy
>
> Amount Ingredient
> 47.3 Nepheline Syenite
> 27 Gerstley Borate--1999
> 20.3 Silica
> 5.4 Kaolin--EPK
>
> 100 Total
>
> Additives
> 4 Rutile
> 1 Cobalt Carbonate
>
> I tried the old recipe to a hard Cone 7, but it was somewhat bleached out.
>
> Any help will be appreciated.
>
> Randy
>
> Cotton Patch Pottery
> members.tripod.com/~McCallJ/index.html
>
Alisa Clausen on tue 18 nov 08
Hi Randy
Just looking at a gram for gram sub. from Neph. Sye to Custer, I do not
think you will get a glaze a good melt at cone 6. I think you will have to
adjust a lot more to get a cone 6 glaze.
But here it is on Glaze Master so you can see the unity formulas.
Best regards, Alisa in Denmark
Recipe Name: Chappel Blue w/o RIO
Cone: 9 Color:
Firing: Surface:
Amount Ingredient
47.3 Nepheline Syenite
27 Gerstley Borate--9/97
20.3 Silica
5.4 Kaolin--EPK
100 Total
Additives
4 Rutile
1 Cobalt Carbonate
Unity Oxide
.404 Na2O
.101 K2O
.105 MgO
.391 CaO
1.000 Total
.558 Al2O3
.465 B2O3
.005 Fe2O3
3.817 SiO2
.001 TiO2
0 P2O5
6.8 Ratio
7.6 Exp
Comments:
-----------------------------------
Calculations by GlazeMaster=99
www.masteringglazes.com
------------------------------------
Recipe Name: Chappel Blue sub with Custer
Cone: 9 Color:
Firing: Surface:
Amount Ingredient
47.3 Feldspar--Custer
27 Gerstley Borate--9/97
20.3 Silica
5.4 Kaolin--EPK
100 Total
Additives
4 Rutile
1 Copper Carbonate
Unity Oxide
.21 Na2O
.247 K2O
.114 MgO
.429 CaO
1.000 Total
.497 Al2O3
.529 B2O3
.006 Fe2O3
4.663 SiO2
.001 TiO2
0 P2O5
9.4 Ratio
7.1 Exp
On Sun, Nov 16, 2008 at 5:03 PM, Randy McCall wrote:
> If I sub Custer Feldspar in this glaze for Neph synite will it work at Co=
ne
> 6 to Cone 7.
>
> Recipe Name: CHAPPELLS'S BLUE W/O IRON
>
> Cone: 6 Color: BLUE
> Firing: Oxidation Surface: Glossy
>
> Amount Ingredient
> 47.3 Nepheline Syenite
> 27 Gerstley Borate--1999
> 20.3 Silica
> 5.4 Kaolin--EPK
>
> 100 Total
>
> Additives
> 4 Rutile
> 1 Cobalt Carbonate
>
> I tried the old recipe to a hard Cone 7, but it was somewhat bleached out=
.
>
> Any help will be appreciated.
>
> Randy
>
> Cotton Patch Pottery
> members.tripod.com/~McCallJ/index.html
>
Miles Smith on fri 21 nov 08
Try Sheffield clay. Also Alberta.
They both have the fat creamy texture in the wet stage and are useable
from cone 6 to eleven. At cone 6 try adding 10% frit 3134. (I darkened it
with 3% Cobalt.) They are opaque, fat and smooth making no scratchy sound
when scraped with fork or spoon.
I made the miscalculation and used the 10% frit 3134 at cone ten and it
went mirror like gloss but did not run over the foot, though it did thin at
the rim.
Miles
----- Original Message -----
From: "Randy McCall"
To:
Sent: Tuesday, November 18, 2008 3:31 PM
Subject: Re: Glaze?
> Thanks Alisa,,,, I put it in my kiln to test this morning. Should get it
> out tomorrow. Also testing the Cone 6 Salvation Glaze for Cone 6. The
> one
> that was adjusted to make it more stable.
>
> I have been trying to come up with a Albany Slip glaze at Cone 6 using
> Laguna's Substitute, but so far it is too shiny and too transparent. I am
> trying to come up with one that looks just like Albany at Cone 10 shiny
> but
> opaque.
>
> Have you done any work with Albany Subs?
>
> My next test will be 80 Albany and 20 nephyl syn.
> Randy
>
> Cotton Patch Pottery
> members.tripod.com/~McCallJ/index.html
>
>
> ----- Original Message -----
> From: "Alisa Clausen"
> To:
> Sent: Tuesday, November 18, 2008 3:58 PM
> Subject: Re: Glaze?
>
>
> Hi Randy
> Just looking at a gram for gram sub. from Neph. Sye to Custer, I do not
> think you will get a glaze a good melt at cone 6. I think you will have
> to
> adjust a lot more to get a cone 6 glaze.
> But here it is on Glaze Master so you can see the unity formulas.
>
> Best regards, Alisa in Denmark
>
>
>
> Recipe Name: Chappel Blue w/o RIO
> Cone: 9 Color:
> Firing: Surface:
> Amount Ingredient
> 47.3 Nepheline Syenite
> 27 Gerstley Borate--9/97
> 20.3 Silica
> 5.4 Kaolin--EPK
> 100 Total
> Additives
> 4 Rutile
> 1 Cobalt Carbonate
> Unity Oxide
> .404 Na2O
> .101 K2O
> .105 MgO
> .391 CaO
> 1.000 Total
> .558 Al2O3
> .465 B2O3
> .005 Fe2O3
> 3.817 SiO2
> .001 TiO2
> 0 P2O5
> 6.8 Ratio
> 7.6 Exp
> Comments:
> -----------------------------------
> Calculations by GlazeMaster(tm)
> www.masteringglazes.com
> ------------------------------------
>
>
> Recipe Name: Chappel Blue sub with Custer
> Cone: 9 Color:
> Firing: Surface:
> Amount Ingredient
> 47.3 Feldspar--Custer
> 27 Gerstley Borate--9/97
> 20.3 Silica
> 5.4 Kaolin--EPK
> 100 Total
> Additives
> 4 Rutile
> 1 Copper Carbonate
> Unity Oxide
> .21 Na2O
> .247 K2O
> .114 MgO
> .429 CaO
> 1.000 Total
> .497 Al2O3
> .529 B2O3
> .006 Fe2O3
> 4.663 SiO2
> .001 TiO2
> 0 P2O5
> 9.4 Ratio
> 7.1 Exp
>
>
>
>
>
>
>
> On Sun, Nov 16, 2008 at 5:03 PM, Randy McCall wrote:
>
>> If I sub Custer Feldspar in this glaze for Neph synite will it work at
>> Cone
>> 6 to Cone 7.
>>
>> Recipe Name: CHAPPELLS'S BLUE W/O IRON
>>
>> Cone: 6 Color: BLUE
>> Firing: Oxidation Surface: Glossy
>>
>> Amount Ingredient
>> 47.3 Nepheline Syenite
>> 27 Gerstley Borate--1999
>> 20.3 Silica
>> 5.4 Kaolin--EPK
>>
>> 100 Total
>>
>> Additives
>> 4 Rutile
>> 1 Cobalt Carbonate
>>
>> I tried the old recipe to a hard Cone 7, but it was somewhat bleached
>> out.
>>
>> Any help will be appreciated.
>>
>> Randy
>>
>> Cotton Patch Pottery
>> members.tripod.com/~McCallJ/index.html
>>
>
Randy McCall on sun 23 nov 08
Got a test tube out yesterday and it came out a matt purple/blue. Some
pinholes.
Randy
Cotton Patch Pottery
members.tripod.com/~McCallJ/index.html
----- Original Message -----
From: "Ron Roy"
To:
Sent: Sunday, November 23, 2008 3:07 PM
Subject: Re: Glaze?
> Hi Randy,
>
> Looks like it will be more shiny - ratio will go up from 6.49 to 8.62 -
> thats because Neph Sy is short of silica compared to feldspars.
>
> I don't have enough experience with cone 6 or blue to tell if the colour
> will work.
>
> I don't understand how the blue could be bleached out though??
>
> RR
>
> >If I sub Custer Feldspar in this glaze for Neph synite will it work at
> >Cone
> >6 to Cone 7.
> >
> >Recipe Name: CHAPPELLS'S BLUE W/O IRON
> >
> >Cone: 6 Color: BLUE
> >Firing: Oxidation Surface: Glossy
> >
> >Amount Ingredient
> >47.3 Nepheline Syenite
> >27 Gerstley Borate--1999
> >20.3 Silica
> >5.4 Kaolin--EPK
> >
> >100 Total
> >
> > Additives
> >4 Rutile
> >1 Cobalt Carbonate
> >
> >I tried the old recipe to a hard Cone 7, but it was somewhat bleached
> >out.
> >
> >Any help will be appreciated.
> >
> >Randy
>
> Ron Roy
> 15084 Little Lake Road
> Brighton, Ontario
> Canada
> K0K 1H0
>
Lee Love on sun 23 nov 08
On Sun, Nov 23, 2008 at 2:26 PM, Bill Merrill wrote:
> Randy,
>
> If Neph Sy is used instead of Custer it seems the glaze will melt at a
> slightly lower temp than if you used Custer Spar. A fusion button of
> each of those spars shows that Neph Sy melts more than Custer spar. Neph
> Sy melts at 1200 degrees centigrade and Custer spar melts slightly
> higher at 1250 degrees centigrade.
Isn't it Custer/F4/Neph sye/G.Borate , in decending order of refractoriness?
Doesn't Neph Sye take you down two cones?
--
Lee Love in Minneapolis
http://togeika.multiply.com/journal
"Myth is cultural DNA, the software, the unconscious information, the
program that governs the way we see 'reality.'" --Sam Keen
"People that deny their myth and think they only act 'rationally',
are simply living an unconscious life." -- Clay Mudman
Ron Roy on sun 23 nov 08
Hi Randy,
Looks like it will be more shiny - ratio will go up from 6.49 to 8.62 -
thats because Neph Sy is short of silica compared to feldspars.
I don't have enough experience with cone 6 or blue to tell if the colour
will work.
I don't understand how the blue could be bleached out though??
RR
>If I sub Custer Feldspar in this glaze for Neph synite will it work at Cone
>6 to Cone 7.
>
>Recipe Name: CHAPPELLS'S BLUE W/O IRON
>
>Cone: 6 Color: BLUE
>Firing: Oxidation Surface: Glossy
>
>Amount Ingredient
>47.3 Nepheline Syenite
>27 Gerstley Borate--1999
>20.3 Silica
>5.4 Kaolin--EPK
>
>100 Total
>
> Additives
>4 Rutile
>1 Cobalt Carbonate
>
>I tried the old recipe to a hard Cone 7, but it was somewhat bleached out.
>
>Any help will be appreciated.
>
>Randy
Ron Roy
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Bill Merrill on sun 23 nov 08
Randy,
If Neph Sy is used instead of Custer it seems the glaze will melt at a
slightly lower temp than if you used Custer Spar. A fusion button of
each of those spars shows that Neph Sy melts more than Custer spar. Neph
Sy melts at 1200 degrees centigrade and Custer spar melts slightly
higher at 1250 degrees centigrade.=20
Bill=20
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Ron Roy
Sent: Sunday, November 23, 2008 12:07 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Glaze?
Hi Randy,
Looks like it will be more shiny - ratio will go up from 6.49 to 8.62 -
thats because Neph Sy is short of silica compared to feldspars.
I don't have enough experience with cone 6 or blue to tell if the colour
will work.
I don't understand how the blue could be bleached out though??
RR
>If I sub Custer Feldspar in this glaze for Neph synite will it work at
Cone
>6 to Cone 7.
>
>Recipe Name: CHAPPELLS'S BLUE W/O IRON
>
>Cone: 6 Color: BLUE
>Firing: Oxidation Surface: Glossy
>
>Amount Ingredient
>47.3 Nepheline Syenite
>27 Gerstley Borate--1999
>20.3 Silica
>5.4 Kaolin--EPK
>
>100 Total
>
> Additives
>4 Rutile
>1 Cobalt Carbonate
>
>I tried the old recipe to a hard Cone 7, but it was somewhat bleached
out.
>
>Any help will be appreciated.
>
>Randy
Ron Roy
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
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