will edwards on sun 12 nov 00
Whoever wanted a clear to try, I submit this one. They are several ways =
I
have formulated this clear and several clays I have used it on. Wollaston=
ite
and NC4 and other variations have been used.
I am aware of some ways this could be altered to save money or the additi=
on of
certain ingredients but for my own purpose this one worked best.
Wm Edwards ^6 ox Clear
Whiting ( Calcium Carbonate ) 12.50
Epk Kaolin 12.50
Nepheline Syenite 20.00
Ferro Frit 3134 25.00
Flint ( Quartz Silica ) 30.00
Since the loss of Gerstley Borate (rest in peace) I have manipulated so m=
any
glazes that I am covered up in new bases and formula's. I always suggest
proper testing since some glazes are not for food based surfaces. Also yo=
u
might consider testing for such anytime you alter a glaze even in the lea=
st
way.
I did not get any negative results when I used this on several clay bodie=
s I
test on. B-Mix being one of them. (5-7) =
Now if any of you are kind enough to help me find a yellow that works in =
this
glaze it would be very appreciated since I haven't had the time to do thi=
s. =
It does have plenty of CaO and is balanced I believe. (Al203/SiO2) I doub=
t it
would support chrome tin colors but I haven't tried that one either.
According to calculations it most likely would not but thats not always b=
een
the case in my research of Chrome Tin. =
I will also suggest those who test this to try a little Cobalt or Iron in=
this
glaze when you get a chance. A student made the mistake of getting a coba=
lt
smear on a test piece and it showed up like a magnified fingerprint.
Currently I am working on yellows to orange without encapsulated oxides.
Should you find a stain that works well let me know! Vanadium pentoxide i=
s
another material I use but with caution. (Also expensive)
Any ideas are appreciated. Chrome Tin is also still in the testing phases=
without GB. All are ^6 ox.
Remember to wear your NIOSH approved mask and those rubber gloves and apr=
ons.
Let me know your results. Happy Testing!
William Edwards
"I think I voted, I can't remember?" =
The place in Alabama where you get too much SiO2 from the dust of all the=
se
dirt roads.
=
____________________________________________________________________
Get free email and a permanent address at http://www.netaddress.com/?N=3D=
1
scott lykens on tue 14 nov 00
i like mason 6433. msds says presidium present. other stuff too, but i think
its mostly just stuff. ive seen it look good at 04, and 11. i assume in
between is probably good too.
>From: will edwards
>Reply-To: Ceramic Arts Discussion List
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: ^6 ox Clear
>Date: Sun, 12 Nov 2000 19:00:57 MST
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>
>Whoever wanted a clear to try, I submit this one. They are several ways I
>have formulated this clear and several clays I have used it on.
>Wollastonite
>and NC4 and other variations have been used.
>I am aware of some ways this could be altered to save money or the addition
>of
>certain ingredients but for my own purpose this one worked best.
>
>Wm Edwards ^6 ox Clear
>
>Whiting ( Calcium Carbonate ) 12.50
>Epk Kaolin 12.50
>Nepheline Syenite 20.00
>Ferro Frit 3134 25.00
>Flint ( Quartz Silica ) 30.00
>
>Since the loss of Gerstley Borate (rest in peace) I have manipulated so
>many
>glazes that I am covered up in new bases and formula's. I always suggest
>proper testing since some glazes are not for food based surfaces. Also you
>might consider testing for such anytime you alter a glaze even in the least
>way.
>I did not get any negative results when I used this on several clay bodies
>I
>test on. B-Mix being one of them. (5-7)
>Now if any of you are kind enough to help me find a yellow that works in
>this
>glaze it would be very appreciated since I haven't had the time to do this.
>It does have plenty of CaO and is balanced I believe. (Al203/SiO2) I doubt
>it
>would support chrome tin colors but I haven't tried that one either.
>According to calculations it most likely would not but thats not always
>been
>the case in my research of Chrome Tin.
>I will also suggest those who test this to try a little Cobalt or Iron in
>this
>glaze when you get a chance. A student made the mistake of getting a cobalt
>smear on a test piece and it showed up like a magnified fingerprint.
>Currently I am working on yellows to orange without encapsulated oxides.
>Should you find a stain that works well let me know! Vanadium pentoxide is
>another material I use but with caution. (Also expensive)
>Any ideas are appreciated. Chrome Tin is also still in the testing phases
>without GB. All are ^6 ox.
>Remember to wear your NIOSH approved mask and those rubber gloves and
>aprons.
>
>
>Let me know your results. Happy Testing!
>
>William Edwards
>
>"I think I voted, I can't remember?"
>The place in Alabama where you get too much SiO2 from the dust of all these
>dirt roads.
>
>
>
>
>____________________________________________________________________
>Get free email and a permanent address at http://www.netaddress.com/?N=1
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
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>settings from http://www.ceramics.org/clayart/
>
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