will edwards on sun 15 oct 00
While I was quietly attempting to extract the information in order to rec=
tify
higher standards for our area I was many times frustrated to almost the p=
oint
of quit trying and let it go.
However I won't! I need my friends and members alive and in full compente=
nce
of their abilbities when involved in issues regarding work ethics and
standards. (Of course we all fail on occasion) Glazing in my classes are =
as
important or more so than the throwing! =
Here is a glaze that I have worked on for awhile. Needs some more work ma=
ybe.
Has a few little buggies in there!!!! But it is a red ^6 oxidation color =
that
can be nice to you if you treat it with care. Decorative purposes should =
be
considered first and careful lab examination should follow even though th=
e
chromic level is very low. Boron is low as well.
I named it (ROSENROT) German name
Ferro 3124 15.00%
Nepheline Syenite 15.00%
Flint 37.00%
Whiting 23.00%
EPK 10.00%
Tin Oxide 06.50%
Chromium Ox 00.35% * This is .35 of 1% not 35%
Totals - 100.00
colorants - 06.85
You might even bump it along a bit with some RIO in some cases. 1-2%
I might also add you can use in dry form based on the weight 0.5% Epsom s=
alts
to float this slurry rather well. Mix well and sieve and get to dipping. =
Its
good to know Epson Salts is not always a laxative. In this case you won't=
get
the runs.
Run this one if you choose through the machines that be, but if you do t=
ry
this recipe please advise me of your results. Alisa do you have your test=
ing
boots on? Ron roy where are you? Low boron and high lime with a good marg=
in
for limits on SiO2 and Al203 based on MY calculations and no other.
But please remember that if it makes it through the grindstone here I wil=
l
finish the lab work and post the results in due time.
Also I don't care if your kilns are different or your chemicals or differ=
ent.
If you test this and let me know, then I can make sense out of the result=
s I
get. It is a ^6 Oxidation glaze. If it travels well then it might be wort=
h
more effort?
William Edwards Red (In the face that is)
Snip>>>>William is not exaggerating about the quality of the wares produc=
ed,
I
only wish the (local) buying public's level of awareness was such that mo=
re
folks recognized the problem or that there was a required "Buyer Beware"
sign.
Separate from whether the base glaze he speaks of is safe, there are
several other issues that affect the quality, and the safety, of pottery =
from
this facility: 1) a consistantly cavalier attitude toward glaze making in=
general, " oh, you don't have to worry if the measurements are off, it re=
ally
doesn't matter " and 2) toward firing. Over and under reduced, miserably =
over
or underfired, it matters minimally to those in charge, after all, they c=
an
(and do) blame all the results on the vagaries of firing,
____________________________________________________________________
Get free email and a permanent address at http://www.netaddress.com/?N=3D=
1
ILENE MAHLER on mon 16 oct 00
What cone was in the sitter...inother words a true 6 Thanks ...Ilene in
Conn
will edwards wrote:
>
> While I was quietly attempting to extract the information in order to rectify
> higher standards for our area I was many times frustrated to almost the point
> of quit trying and let it go.
> However I won't! I need my friends and members alive and in full compentence
> of their abilbities when involved in issues regarding work ethics and
> standards. (Of course we all fail on occasion) Glazing in my classes are as
> important or more so than the throwing!
> Here is a glaze that I have worked on for awhile. Needs some more work maybe.
> Has a few little buggies in there!!!! But it is a red ^6 oxidation color that
> can be nice to you if you treat it with care. Decorative purposes should be
> considered first and careful lab examination should follow even though the
> chromic level is very low. Boron is low as well.
>
> I named it (ROSENROT) German name
>
> Ferro 3124 15.00%
> Nepheline Syenite 15.00%
> Flint 37.00%
> Whiting 23.00%
> EPK 10.00%
> Tin Oxide 06.50%
> Chromium Ox 00.35% * This is .35 of 1% not 35%
>
> Totals - 100.00
> colorants - 06.85
>
> You might even bump it along a bit with some RIO in some cases. 1-2%
> I might also add you can use in dry form based on the weight 0.5% Epsom salts
> to float this slurry rather well. Mix well and sieve and get to dipping. Its
> good to know Epson Salts is not always a laxative. In this case you won't get
> the runs.
>
> Run this one if you choose through the machines that be, but if you do try
> this recipe please advise me of your results. Alisa do you have your testing
> boots on? Ron roy where are you? Low boron and high lime with a good margin
> for limits on SiO2 and Al203 based on MY calculations and no other.
> But please remember that if it makes it through the grindstone here I will
> finish the lab work and post the results in due time.
> Also I don't care if your kilns are different or your chemicals or different.
> If you test this and let me know, then I can make sense out of the results I
> get. It is a ^6 Oxidation glaze. If it travels well then it might be worth
> more effort?
>
> William Edwards Red (In the face that is)
>
> Snip>>>>William is not exaggerating about the quality of the wares produced,
> I
> only wish the (local) buying public's level of awareness was such that more
> folks recognized the problem or that there was a required "Buyer Beware"
> sign.
> Separate from whether the base glaze he speaks of is safe, there are
> several other issues that affect the quality, and the safety, of pottery from
> this facility: 1) a consistantly cavalier attitude toward glaze making in
> general, " oh, you don't have to worry if the measurements are off, it really
> doesn't matter " and 2) toward firing. Over and under reduced, miserably over
> or underfired, it matters minimally to those in charge, after all, they can
> (and do) blame all the results on the vagaries of firing,
>
> ____________________________________________________________________
> Get free email and a permanent address at http://www.netaddress.com/?N=1
>
> ______________________________________________________________________________
> 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.
Ron Roy on mon 23 oct 00
Hi Will,
Finally getting around to this. Keep in mind - we are just beginning to get
some hard info in this area so I am still speculating - but with better
backgound info thanks to John Hesselberths hard work in this area.
First of all I would not be afraid to let in more boron if the result is
more alumina and silica. This glaze is probably OK with those but nearer
the low limit than the high. The main problem could be the high CaO - why
not sub in a little strontium to make it more balanced.
Expansion looks OK for most bodies - maybe a little high for some cone 6
porcelain like bodies. I don't know why you used F3124 - it's the same as
3134 but 3134 has no alumina - means you are paying more for your boron and
you could use the extra clay in the bucket to help suspension.
RR
>> I named it (ROSENROT) German name
>>
>> Ferro 3124 15.00%
>> Nepheline Syenite 15.00%
>> Flint 37.00%
>> Whiting 23.00%
>> EPK 10.00%
>> Tin Oxide 06.50%
>> Chromium Ox 00.35% * This is .35 of 1% not 35%
>>
>> Totals - 100.00
>> colorants - 06.85
Ron Roy
93 Pegasus Trail
Scarborough
Ontario, Canada
M1G 3N8
Evenings 416-439-2621
Fax 416-438-7849
Patrice Murtha on tue 24 oct 00
Is this glaze good in reduction or oxidation?
>RR
>
>
>>> I named it (ROSENROT) German name
>>>
>>> Ferro 3124 15.00%
>>> Nepheline Syenite 15.00%
>>> Flint 37.00%
>>> Whiting 23.00%
>>> EPK 10.00%
>>> Tin Oxide 06.50%
>>> Chromium Ox 00.35% * This is .35 of 1% not 35%
>>>
>>> Totals - 100.00
>>> colorants - 06.85
>
>Ron Roy
>93 Pegasus Trail
>Scarborough
>Ontario, Canada
>M1G 3N8
>Evenings 416-439-2621
>Fax 416-438-7849
>
>______________________________________________________________________________
>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.
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