Deborah on sat 7 apr 01
Hello...
a few weeks ago I bought a man's whole pottery outfit complete with glazes
in 5 gallon pails. He was a hobby potter who only did it a couple of times
of year and I am thinking these glazes lasted him a long time. Anyway he
had a bronze glaze that is awesome. Looks like real bronze on white clay,
very metalic. In the pail it is very black and stains everything. Anyway
he can't seem to find the recipe for it and I love it. If there is anyone
that could help me out with possible glaze recipes similar to this I would
sure appreciate it.
Thanks
Deborah Floden
Estevan, Saskatchewan
Ababi on sun 8 apr 01
I think it is Ogden gold. it looks awful black. Where it is thin it is black
where thick bronze gold
OGDEN GOLD (^6 OX)
Manganese 60 HEALTH HAZARD!
Copper Oxide 10
Red clay 20
China Clay 10
Warning: way too high in manganese to be foodsafe!
There is another recipe from Lana Wilson's book. I like it better, you can
apply it thin than real bronze not gold:
Mike Debreue Bronze
Albany slip clay50
Manganese Dioxide35
Copper oxide15
Add Alumina Hydrate 10
There is another recipe, with cobalt carbonate, good for the supplier.
I thing it is healthier to smoke a cigarette than use these glazes
......Ababi in the Northern Negev where birds are singings cows are giving
milk etc, etc.
ababisha@shoval.ardom.co.il
http://members4.clubphoto.com/ababi306910/
----- Original Message -----
From: "Deborah"
To:
Sent: Sunday, April 08, 2001 2:18 AM
Subject: Bronze cone 6 glaze
> Hello...
> a few weeks ago I bought a man's whole pottery outfit complete with glazes
> in 5 gallon pails. He was a hobby potter who only did it a couple of
times
> of year and I am thinking these glazes lasted him a long time. Anyway he
> had a bronze glaze that is awesome. Looks like real bronze on white clay,
> very metalic. In the pail it is very black and stains everything. Anyway
> he can't seem to find the recipe for it and I love it. If there is anyone
> that could help me out with possible glaze recipes similar to this I would
> sure appreciate it.
>
> Thanks
> Deborah Floden
> Estevan, Saskatchewan
>
>
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Wade Blocker on sun 8 apr 01
Deborah,
Here are two bronze glazes. They should be in the archives by now.
Reynolds gold metallic glaze cone 6 CM Feb 92,page 76
Black Cu oxide 4.0
Co oxide 2.5
Manganese dioxide 36.5
Ball Clay 4.0
Cedar Heights Red Art 49.0
Flint 4.0
Bronze gold-apply thick
Bronze cone 6 Susan Peterson
Red Art Clay 46.0
Flint 4.0
Ball Clay 4.0
Black Cu oxide 4.0
Cobalt oxide 2.0
Manganese dioxide 35.00
Red Fe 2.0
dark rutile 3.0
Neither of these glazes is food safe. Use on decorative ware only. Mia in
sunny ABQ
Autumn Downey on sun 8 apr 01
Hi Deborah,
The glaze is probably a combination of manganese, copper and abit of clay -
(we had one like this at our guild). It's definitely not for food and also
would give off toxic fumes during firing. Always the way, isn't it with
the interesting glazes?
You'll likely hear from lots of clayart people who may give more info than
this, but thought I'd write as I'm almost your neighbour, at least some of
the time, when I'm in Arcola for a month or two at a spell.
Autumn Downey
Yellowknife, NWT
Janet Kaiser on sun 8 apr 01
Before you search too far Deborah, I advise you go back
and ask if he ever bought commercial glazes at any
time? If so, could this be one of them?
A "hobby potter" may be too shy, overwhelmed and/or
ashamed of admitting to a "real potter" that they
actually bought and used a ready-made glaze. I have
often seen it happen. Indeed I know several
professionals who do not mix their own glazes... They
would die rather than admit it to their peers.
It is one of the elitist aspects of ceramics which
causes some aggravation between folk... Why it is OK to
use the standard glazes available in a studio, mixed by
technicians or others, but not acceptable to buy in
glaze when working on your own? I have never quite
understood.
Students who come out of some colleges have no idea how
to even begin making a glaze (let alone fire them), but
they still consider themselves "real potters".
Just be kind when you ask... Your genuine interest
should help him remember. You could also search the
archives. A bronze glaze is often requested and there
are several recipes listed.
Janet Kaiser
The Chapel of Art . Capel Celfyddyd
HOME OF THE INTERNATIONAL POTTERS' PATH
Criccieth LL52 0EA, GB-Wales Tel: (01766) 523570
E-mail: postbox@the-coa.org.uk
WEBSITE: http://www.the-coa.org.uk
----- Original Message -----
> Hello...
> a few weeks ago I bought a man's whole pottery outfit
complete with glazes
> in 5 gallon pails. He was a hobby potter who only
did it a couple of times
> of year and I am thinking these glazes lasted him a
long time. Anyway he
> had a bronze glaze that is awesome. Looks like real
bronze on white clay,
> very metalic. In the pail it is very black and
stains everything. Anyway
> he can't seem to find the recipe for it and I love
it. If there is anyone
> that could help me out with possible glaze recipes
similar to this I would
> sure appreciate it.
>
> Thanks
> Deborah Floden
> Estevan, Saskatchewan
Gayle Bair on sun 8 apr 01
Hi Deborah,
I would use caution with that bronze glaze. Find out where he got it , try
to get the recipe or have it tested as it may have lead in it. It sounds
like a Laguna glaze that I used briefly. Their catalog list lists 4 of them
and they do contain lead. They are beautiful and I wish they didn't contain
lead.
If you produce functional ware you can contaminate your kiln. As I recall
there were several threads on this subject. You can locate them in the
archives.
Gayle Bair- Bainbridge Island WA
Hello...
a few weeks ago I bought a man's whole pottery outfit complete with glazes
in 5 gallon pails. He was a hobby potter who only did it a couple of times
of year and I am thinking these glazes lasted him a long time. Anyway he
had a bronze glaze that is awesome. Looks like real bronze on white clay,
very metalic. In the pail it is very black and stains everything. Anyway
he can't seem to find the recipe for it and I love it. If there is anyone
that could help me out with possible glaze recipes similar to this I would
sure appreciate it.
Thanks
Deborah Floden
Estevan, Saskatchewan
Deborah on mon 9 apr 01
Thanks for all the info on the Bronze glaze, I did check the archives and
also checked the chemicals that I purchased from this man. No manganese
dioxide, but there was manganese carbonate (is that just a more refined
edition of the dioxide) Hoping less toxic, ha! or is it something
altogether different.
I am seeing a trend here with the bronze thing and guess I won't be using
it on functional ware. Thanks once again
Deborah
Estevan, Sk.
Marianne Bornet on mon 9 apr 01
Hi Deborah
There was a very interesting article by Emmanuel Cooper on metallic finishes
obtainable in an electric kiln in the number 175 (jan/feb 1999) issue of
Ceramics Review.
Here are the 2 Bronze recipes given:
Basic Bronze 1200 - 1260C
Black copper oxide 2.5
Manganese dioxide 48
China clay 15
Ball clay 12
Colin Pearson Bronze 1180 - 1260C
Manganese dioxide 10
Copper oxide 1
China clay 1
+ Glaze binder SMC 1%
Ball mill if possible. Apply by spray or painting
Needless to say all the health warnings apply in dealing with these hazardous
materials.
I have yet to test the Colin Pearson recipe. I recently tested the first at
1240C which came out quite a dark bronze - really quite rich, but have yet to
try it out on a form.
Good luck
Marianne
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