John Goode on sat 11 dec 10
Hi Clay people...
I am testing some liner glazes for 04/ 06 range...I will fire 04 oxidation=
.
If you have a favorite to share please send it on.
I plan to share results on a web page soon .
Thanks Clayart!
John Goode
Stephani Stephenson on sun 12 dec 10
John ,=3D20
Do you need a liner for decorative purposes or utilitarian purposes and =
=3D
if
so, if that also means for dinnerware purposes?
the toughest problem for this range is crazing .=3D20
the clay bodies are often very open and/or not mature in this range, so m=
=3D
uch
has to do with your claybody and glaze fit...=3D20
Might help clarify for those who have a suggestion
Stephani
Edouard Bastarache on sun 12 dec 10
Check out these, some were not designed as liner glazes,
http://04glazes.blogspot.com/
I would use those based on this glaze base :
Kona F-4,12
Ferro frit #3134,46
Dolomite,5
Zinc oxide,7
Kaolin,10
Kaolin calcined,11
Silica,7
Gis,
Edouard Bastarache
Spertesperantisto
Sorel-Tracy
Quebec
http://www.flickr.com/photos/30058682@N00/
http://edouardbastarache.blogspot.com/
http://blogsalbertbastarache.blogspot.com/
http://cerampeintures.blogspot.com/
http://www.facebook.com/edouard.bastarache
Ron Roy on sun 12 dec 10
Not enough kaolin in this one to be a stable glaze - that means it
will change colour in use and eventually lose it's gloss.
The silica should be over 250 moles - this one only has 1.93.
This should not be difficult to do but you would need more frit.
If you want to try making your own I can get you started.
RR
> Check out these, some were not designed as liner glazes,
> http://04glazes.blogspot.com/
>
> I would use those based on this glaze base :
>
> Kona F-4,12
> Ferro frit #3134,46
> Dolomite,5
> Zinc oxide,7
> Kaolin,10
> Kaolin calcined,11
> Silica,7
>
> Gis,
>
> Edouard Bastarache
> Spertesperantisto
>
> Sorel-Tracy
> Quebec
>
> http://www.flickr.com/photos/30058682@N00/
> http://edouardbastarache.blogspot.com/
> http://blogsalbertbastarache.blogspot.com/
> http://cerampeintures.blogspot.com/
> http://www.facebook.com/edouard.bastarache
>
John Goode on mon 13 dec 10
Hi Ron
On the low fire cone 04 liner glaze
I found this one of yours in the archives.
3195 55
3278 38
om 4 10
bent 2
I dont have any 3278 so could I sub 3289 or 3269?
Thanks JOhn Goode
On Sun, Dec 12, 2010 at 3:05 PM, Ron Roy wrote:
> Not enough kaolin in this one to be a stable glaze - that means it
> will change colour in use and eventually lose it's gloss.
>
> The silica should be over 250 moles - this one only has 1.93.
>
> This should not be difficult to do but you would need more frit.
>
> If you want to try making your own I can get you started.
>
> RR
>
>
> Check out these, some were not designed as liner glazes,
>> http://04glazes.blogspot.com/
>>
>> I would use those based on this glaze base :
>>
>> Kona F-4,12
>> Ferro frit #3134,46
>> Dolomite,5
>> Zinc oxide,7
>> Kaolin,10
>> Kaolin calcined,11
>> Silica,7
>>
>> Gis,
>>
>> Edouard Bastarache
>> Spertesperantisto
>>
>> Sorel-Tracy
>> Quebec
>>
>> http://www.flickr.com/photos/30058682@N00/
>> http://edouardbastarache.blogspot.com/
>> http://blogsalbertbastarache.blogspot.com/
>> http://cerampeintures.blogspot.com/
>> http://www.facebook.com/edouard.bastarache
>>
>>
Neon-Cat on mon 13 dec 10
Thanks for sharing, Edouard! I may try one of these for my low-fired
work. Borosilicate glazes generally have great chemical durability. I
hope no one is discouraged from trying any glaze with a good history.
As we know, even PhD-ed corrosion engineers (for glass, glaze, and
ceramics) wouldn=3D92t dream of making durability predictions based on
glaze composition alone. In their high-science world they=3D92ll fully
admit right off the bat that even with all their knowledge, tools,
tricks-of-the-trade, models, and test equipment prediction may be off
by a factor of five or a thousand. They are humble enough to keep on
saying =3D93test, test, test=3D94 (the finished product under actual intend=
ed
conditions).
Clayart has need of all of us =3D96 keep on posting (please!)
Luv ya,
Marian
Neon-Cat
Ron Roy on mon 13 dec 10
Hi John,
I have to find the analysis for 3289 - I'll try to get it done before
tonight but if I can't it will have to be later in the week as I'm out
of town for the next 2 days.
If you have the analysis for 3289 send it along.
I don't want to use 3269 as it has some flourine.
RR
Quoting John Goode :
> Hi Ron
> On the low fire cone 04 liner glaze
> I found this one of yours in the archives.
> 3195 55
> 3278 38
> om 4 10
> bent 2
> I dont have any 3278 so could I sub 3289 or 3269?
> Thanks JOhn Goode
>
> On Sun, Dec 12, 2010 at 3:05 PM, Ron Roy wrote:
>
>> Not enough kaolin in this one to be a stable glaze - that means it
>> will change colour in use and eventually lose it's gloss.
>>
>> The silica should be over 250 moles - this one only has 1.93.
>>
>> This should not be difficult to do but you would need more frit.
>>
>> If you want to try making your own I can get you started.
>>
>> RR
>>
>>
>> Check out these, some were not designed as liner glazes,
>>> http://04glazes.blogspot.com/
>>>
>>> I would use those based on this glaze base :
>>>
>>> Kona F-4,12
>>> Ferro frit #3134,46
>>> Dolomite,5
>>> Zinc oxide,7
>>> Kaolin,10
>>> Kaolin calcined,11
>>> Silica,7
>>>
>>> Gis,
>>>
>>> Edouard Bastarache
>>> Spertesperantisto
>>>
>>> Sorel-Tracy
>>> Quebec
>>>
>>> http://www.flickr.com/photos/30058682@N00/
>>> http://edouardbastarache.blogspot.com/
>>> http://blogsalbertbastarache.blogspot.com/
>>> http://cerampeintures.blogspot.com/
>>> http://www.facebook.com/edouard.bastarache
>>>
>>>
>
Ron Roy on mon 13 dec 10
Hi again John,
Found the 3289 in my data base - it's loaded with barium so I would
prefer not to use it in a liner glaze.
I don't have a lot of experience with low fire glazes so I'm learning
along with you here.
I have cone up with two that might work - you'll have to test them
though. A full cone 04 would be best. Mix 500 grams of each (#1 and
#3) and dip some tests - then mix equal amounts of each to get #3.
They should all be stable glazes if melted enough - the question
remains - which will not craze? Let us know what happens.
cone 04? liner#1. Test before using - RR
34.00 F3195
34.00 F3134
10.00 CUSTER SPAR
12.00 OM-4
10.00 SILICA
2.00 BENTONITE
Total =3D 102
0.19 CaO
0.00 MgO
0.01 K2O
0.10 Na2O
0.00 Fe2O3
0.00 TiO2
0.23 B2O3
0.09 Al2O3
0.94 SiO2
Si:Al: 10.09
SiB:Al: 12.53
Thermal Expansion: 409.19
Formula Weight: 100.19
cone 04? liner#3. Test before using - RR
30.00 F3195
30.00 F3134
6.00 WHITING
17.50 OM-4
16.50 SILICA
2.00 BENTONITE
Total =3D 102
0.72* CaO
0.01* MgO
0.01* K2O
0.26* Na2O
0.01 Fe2O3
0.01 TiO2
0.64 B2O3
0.28 Al2O3
2.94 SiO2
Si:Al: 10.61
SiB:Al: 12.92
Thermal Expansion: 391.37
Formula Weight: 308.81
RR
Quoting John Goode :
> Hi Ron
> On the low fire cone 04 liner glaze
> I found this one of yours in the archives.
> 3195 55
> 3278 38
> om 4 10
> bent 2
> I dont have any 3278 so could I sub 3289 or 3269?
> Thanks JOhn Goode
>
> On Sun, Dec 12, 2010 at 3:05 PM, Ron Roy wrote:
>
>> Not enough kaolin in this one to be a stable glaze - that means it
>> will change colour in use and eventually lose it's gloss.
>>
>> The silica should be over 250 moles - this one only has 1.93.
>>
>> This should not be difficult to do but you would need more frit.
>>
>> If you want to try making your own I can get you started.
>>
>> RR
>>
>>
>> Check out these, some were not designed as liner glazes,
>>> http://04glazes.blogspot.com/
>>>
>>> I would use those based on this glaze base :
>>>
>>> Kona F-4,12
>>> Ferro frit #3134,46
>>> Dolomite,5
>>> Zinc oxide,7
>>> Kaolin,10
>>> Kaolin calcined,11
>>> Silica,7
>>>
>>> Gis,
>>>
>>> Edouard Bastarache
>>> Spertesperantisto
>>>
>>> Sorel-Tracy
>>> Quebec
>>>
>>> http://www.flickr.com/photos/30058682@N00/
>>> http://edouardbastarache.blogspot.com/
>>> http://blogsalbertbastarache.blogspot.com/
>>> http://cerampeintures.blogspot.com/
>>> http://www.facebook.com/edouard.bastarache
>>>
>>>
>
John Goode on mon 13 dec 10
Thanks
Will have tests out and on line in a few days.
John
On Mon, Dec 13, 2010 at 8:12 PM, wrote:
> Hi again John,
>
> Found the 3289 in my data base - it's loaded with barium so I would prefe=
r
> not to use it in a liner glaze.
>
> I don't have a lot of experience with low fire glazes so I'm learning alo=
ng
> with you here.
>
> I have cone up with two that might work - you'll have to test them though=
.
> A full cone 04 would be best. Mix 500 grams of each (#1 and #3) and dip s=
ome
> tests - then mix equal amounts of each to get #3. They should all be stab=
le
> glazes if melted enough - the question remains - which will not craze? Le=
t
> us know what happens.
>
> cone 04? liner#1. Test before using - RR
> 34.00 F3195
> 34.00 F3134
> 10.00 CUSTER SPAR
> 12.00 OM-4
> 10.00 SILICA
> 2.00 BENTONITE
> Total =3D 102
>
> 0.19 CaO
> 0.00 MgO
> 0.01 K2O
> 0.10 Na2O
> 0.00 Fe2O3
> 0.00 TiO2
> 0.23 B2O3
> 0.09 Al2O3
> 0.94 SiO2
>
> Si:Al: 10.09
> SiB:Al: 12.53
> Thermal Expansion: 409.19
> Formula Weight: 100.19
>
> cone 04? liner#3. Test before using - RR
>
> 30.00 F3195
> 30.00 F3134
> 6.00 WHITING
> 17.50 OM-4
> 16.50 SILICA
> 2.00 BENTONITE
> Total =3D 102
>
> 0.72* CaO
> 0.01* MgO
> 0.01* K2O
> 0.26* Na2O
> 0.01 Fe2O3
> 0.01 TiO2
> 0.64 B2O3
> 0.28 Al2O3
> 2.94 SiO2
>
> Si:Al: 10.61
> SiB:Al: 12.92
> Thermal Expansion: 391.37
> Formula Weight: 308.81
>
>
> RR
>
>
> Quoting John Goode :
>
> Hi Ron
>> On the low fire cone 04 liner glaze
>> I found this one of yours in the archives.
>> 3195 55
>> 3278 38
>> om 4 10
>> bent 2
>> I dont have any 3278 so could I sub 3289 or 3269?
>> Thanks JOhn Goode
>>
>> On Sun, Dec 12, 2010 at 3:05 PM, Ron Roy wrote:
>>
>> Not enough kaolin in this one to be a stable glaze - that means it
>>> will change colour in use and eventually lose it's gloss.
>>>
>>> The silica should be over 250 moles - this one only has 1.93.
>>>
>>> This should not be difficult to do but you would need more frit.
>>>
>>> If you want to try making your own I can get you started.
>>>
>>> RR
>>>
>>>
>>> Check out these, some were not designed as liner glazes,
>>>
>>>> http://04glazes.blogspot.com/
>>>>
>>>> I would use those based on this glaze base :
>>>>
>>>> Kona F-4,12
>>>> Ferro frit #3134,46
>>>> Dolomite,5
>>>> Zinc oxide,7
>>>> Kaolin,10
>>>> Kaolin calcined,11
>>>> Silica,7
>>>>
>>>> Gis,
>>>>
>>>> Edouard Bastarache
>>>> Spertesperantisto
>>>>
>>>> Sorel-Tracy
>>>> Quebec
>>>>
>>>> http://www.flickr.com/photos/30058682@N00/
>>>> http://edouardbastarache.blogspot.com/
>>>> http://blogsalbertbastarache.blogspot.com/
>>>> http://cerampeintures.blogspot.com/
>>>> http://www.facebook.com/edouard.bastarache
>>>>
>>>>
>>>>
>>
>
>
>
Edouard Bastarache on mon 13 dec 10
I don't have a lot of experience with low fire glazes...
Ron"
It shows !!!
Gis,
Edouard Bastarache
Spertesperantisto
Sorel-Tracy
Quebec
http://www.flickr.com/photos/30058682@N00/
http://edouardbastarache.blogspot.com/
http://blogsalbertbastarache.blogspot.com/
http://cerampeintures.blogspot.com/
http://www.facebook.com/edouard.bastarache
Ron Roy on thu 16 dec 10
pts rule name description
---- ---------------------- ----------------------------------------------=
----
_SUMMARY_
As John points out - the way the molecular formula shows for the first
glaze is not right - for those who would like to see the Seger formula
the right way - here it is.
Thanks John - RR
34.00 F3195
34.00 F3134
10.00 CUSTER SPAR
12.00 OM-4
10.00 SILICA
2.00 BENTONITE
Total =3D 102.0
0.63* CaO
0.01* MgO
0.04* K2O
0.32* Na2O
0.00 Fe2O3
0.01 TiO2
0.75 B2O3
0.31 Al2O3
3.12 SiO2
Si:Al: 10.09
SiB:Al: 12.53
Thermal Expansion: 409.19
Formula Weight: 332.14
Quoting John Hesselberth :
> Hi Ron,
>
> The first glaze below doesn't compute. The numbers you show for
> unity don't add to 1 for the fluxes (even if I include boron). I
> haven't put it in a "real" glaze calc program but will if you need
> some assistance.
>
> John
>
> On Dec 13, 2010, at 9:12 PM, Ron Roy wrote:
>
>> Hi again John,
>>
>> Found the 3289 in my data base - it's loaded with barium so I would
>> prefer not to use it in a liner glaze.
>>
>> I don't have a lot of experience with low fire glazes so I'm learning
>> along with you here.
>>
>> I have cone up with two that might work - you'll have to test them
>> though. A full cone 04 would be best. Mix 500 grams of each (#1 and
>> #3) and dip some tests - then mix equal amounts of each to get #3.
>> They should all be stable glazes if melted enough - the question
>> remains - which will not craze? Let us know what happens.
>>
>> cone 04? liner#1. Test before using - RR
>> 34.00 F3195
>> 34.00 F3134
>> 10.00 CUSTER SPAR
>> 12.00 OM-4
>> 10.00 SILICA
>> 2.00 BENTONITE
>> Total =3D 102
>>
>> 0.19 CaO
>> 0.00 MgO
>> 0.01 K2O
>> 0.10 Na2O
>> 0.00 Fe2O3
>> 0.00 TiO2
>> 0.23 B2O3
>> 0.09 Al2O3
>> 0.94 SiO2
>>
>> Si:Al: 10.09
>> SiB:Al: 12.53
>> Thermal Expansion: 409.19
>> Formula Weight: 100.19
>>
>> cone 04? liner#3. Test before using - RR
>>
>> 30.00 F3195
>> 30.00 F3134
>> 6.00 WHITING
>> 17.50 OM-4
>> 16.50 SILICA
>> 2.00 BENTONITE
>> Total =3D 102
>>
>> 0.72* CaO
>> 0.01* MgO
>> 0.01* K2O
>> 0.26* Na2O
>> 0.01 Fe2O3
>> 0.01 TiO2
>> 0.64 B2O3
>> 0.28 Al2O3
>> 2.94 SiO2
>>
>> Si:Al: 10.61
>> SiB:Al: 12.92
>> Thermal Expansion: 391.37
>> Formula Weight: 308.81
>>
>> RR
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