Gail Dapogny on tue 18 nov 03
In our guild, we scrape out our spray booth once a week into a bowl
(part of a cleaning task) , and someone always takes it and uses it
for the insides of semi-closed pots (bottles, etc.). It's usually
celadon-like, sometimes darker.
---Gail
On Nov 18, 2003, at 11:53 AM, Laura Kneppel wrote:
> I heard one of the local JC ceramic depts used to scrape the spray
> booth at the end of the semester, add water and fire just to see what
> they would get, and it was always, inevitably, blue of some sort.
>
> Laurie
> Sacramento, CA
>
> On Tuesday, November 18, 2003, at 10:11 AM, Paul wrote:
>
>> Has anyone had any good results collecting all the reclaim left over
>> from glazing and mixing it together? I always have a thick coat of
>> dry glaze
>> along the inside of my spray booth which i scrape off and throw away
>> (unless
>
Gail Dapogny gdapogny@umich.edu
1154 Olden Road
Ann Arbor, Michigan 48103
http://www.silverhawk.com/ex99/dapogny (single historical photo - no
longer
Paul on tue 18 nov 03
Has anyone had any good results collecting all the reclaim left over from
glazing and mixing it together? I always have a thick coat of dry glaze
along the inside of my spray booth which i scrape off and throw away (unless
it is a cobalt glaze then i squeegie it while still wet and put back in
bucket). But now, if i can find space for one more bucket in my studio, i am
thinking to save it all and eventually slake it down and screen it. I would
like to hear if anyone out there does this and if so, do they get anything
interesting?
thanks,
Paul B
Falmouth, Ky
Ann Brink on tue 18 nov 03
Hello Paul,
I don't spray, but I collect reclaim from my "washbucket"---the plastic
bucket I use to wash hands & utinsels & sponges in, etc. After there is
quite a lot of glaze in the bottom, I pour offf some of the water, stir
well, and make a test tile. It's usually something in the green family, so
If it doesn't seem like the "drab" tint will overwhelm everything, I have
added either cobalt or copper- accentuating the blue or green. It is much
improved by adding some opacifier too. So, I have buckets here labeled WB1,
WB2, etc. (washbucket)
Disclaimer: who knows what YOUR reclaim will look like- depends on the
glazes you use. Mine are mostly 2 different bases. Have fun!
Ann Brink in CA
Subject: GLAZE RECLAIM
> Has anyone had any good results collecting all the reclaim left over from
> glazing and mixing it together? I always have a thick coat of dry glaze
> along the inside of my spray booth which i scrape off and throw away
(unless
> it is a cobalt glaze then i squeegie it while still wet and put back in
> bucket). But now, if i can find space for one more bucket in my studio, i
am
> thinking to save it all and eventually slake it down and screen it. I
would
> like to hear if anyone out there does this and if so, do they get anything
> interesting?
> thanks,
> Paul B
> Falmouth, Ky
>
>
____________________________________________________________________________
__
Laura Kneppel on tue 18 nov 03
I heard one of the local JC ceramic depts used to scrape the spray
booth at the end of the semester, add water and fire just to see what
they would get, and it was always, inevitably, blue of some sort.
Laurie
Sacramento, CA
On Tuesday, November 18, 2003, at 10:11 AM, Paul wrote:
> Has anyone had any good results collecting all the reclaim left over
> from
> glazing and mixing it together? I always have a thick coat of dry glaze
> along the inside of my spray booth which i scrape off and throw away
> (unless
> it is a cobalt glaze then i squeegie it while still wet and put back in
> bucket). But now, if i can find space for one more bucket in my
> studio, i am
> thinking to save it all and eventually slake it down and screen it. I
> would
> like to hear if anyone out there does this and if so, do they get
> anything
> interesting?
> thanks,
> Paul B
> Falmouth, Ky
>
> _______________________________________________________________________
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>
Chris Schafale on tue 18 nov 03
As someone else has said, it all depends on what glazes you use. Mine are
all colored with cobalt, iron, and rutile, and my "scrap" glazes are really
wonderful dark blues. The only drawback is that the shade changes from
batch to batch, so when customers want something "just like" what they
bought last year, they're out of luck. I do accumulate "scrap" until I have
about 5 gallons worth, though, so I can have a reasonably long run on a
batch.
Chris
On 18 Nov 2003 at 13:11, Paul wrote:
> Has anyone had any good results collecting all the reclaim left over from
> glazing and mixing it together? I always have a thick coat of dry glaze
> along the inside of my spray booth which i scrape off and throw away (unless
> it is a cobalt glaze then i squeegie it while still wet and put back in
> bucket). But now, if i can find space for one more bucket in my studio, i am
> thinking to save it all and eventually slake it down and screen it. I would
> like to hear if anyone out there does this and if so, do they get anything
> interesting?
> thanks,
> Paul B
> Falmouth, Ky
>
> ______________________________________________________________________________
> 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.
Light One Candle Pottery
Fuquay-Varina, North Carolina, USA
(south of Raleigh)
candle@intrex.net
http://www.lightonecandle.com
Paul Lewing on tue 18 nov 03
on 11/18/03 10:11 AM, Paul at paul@DOCRET.COM wrote:
> Has anyone had any good results collecting all the reclaim left over from
> glazing and mixing it together? I would like to hear if anyone out there does
this and if so, do they get anything interesting?
I was amazed when I switched from cone 10 reduction to cone 5 oxidation that
my scrap glaze looked exactly the same- a shiny medium-to-dark green. I use
a lot of different glazes and I generate a lot of scrap. I spray a lot, I
make a lot of glaze tests (some of which actually work) and I do a glazing
technique that generates a lot of scrap because I don't wax the edges of my
tiles. All of that goes into the rinse bucket, where the whisk lives.
Cleaning off the table, scraping out glaze containers, washing off tools, it
all goes in there. Did I mention that I make a LOT of scrap?
I use it all. It seems to go at about the same rate it accumulates, which
means I need to replenish the usable scrap glaze bucket from the bottom of
the rinse bucket every few months.
I mix the scrap half-and half with an opaque white to get a glaze that looks
a lot like celadon at cone 4 oxidation.
I mix it in the same proportion with a clear glaze (whatever clear I have
the most of around, and I might at any one time have 5 of those) add some
copper and cobalt and get a lovely deep shiny green
I add extra colorant to it by itself to get a black. I usually add 1.5%
each iron oxide and manganese dioxide, plus 0.5% cobalt carbonate and
chrome oxide. Sometimes I'm even careful about measuring that. And
sometimes I throw in any colorant I want to get rid of. Took me about 5
years to get rid of some really crappy iron by using it for black.
Sometimes I add tin oxide to it and, if I've been using any chrome glazes,
I'll get a purple.
Sometimes, depending on what glazes you've been using, rutile will make a
wild effect.
Or try line blending it into any other glaze you use. If your cobalt blues
are too garish for your taste, a little scrap may be just the thing to tone
them down.
And if you want to see a truly gag-me awful color, try adding some vanadium
yellow stain to it. I speak from experience here.
But don't throw it away. You paid for it and it's still good.
Paul Lewing, Seattle
L. P. Skeen on wed 19 nov 03
When I was in college, Kotani (ceramics prof) would collect all the glazes
we had tried (good or no) in buckets marked "glazes with iron" "glazes with
Rutile", glazes with cobalt, glazes with chrome, glazes with copper. As
long as they were ^10 glazes (and I was the only one working at^6 then) if
you were done with them, they went into the appropriate bucket. Then first
thing next semester he tested the buckets and added whatever he thought
needed adding to make them useable.
Anybody else I've ever seen try blending scrap glazes usually just throws
'em all in one big bucket, and the result is usually a color called Mud. ;)
L
----- Original Message -----
From: "David Beumee"
> > > Has anyone had any good results collecting all the reclaim left over
from glazing and mixing it together?
Tjo62@AOL.COM on wed 19 nov 03
Every once in a while, I take all my glaze tests, left over bottom of the
buckets, and "no longer used" glazes and mix them up into a big bucket I label
"Mystery Glaze." It usually comes out a dark to med. green transparent. A few
weeks ago I was given 6 or 7 different glazes (that I am unlikely to use) by
someone who is moving. I just mixed them all up with my latest glaze test and
left overs. Im going to give it a test in my next kiln. It's a great way to use
these materials and save space in the studio.
David Beumee on wed 19 nov 03
> > Has anyone had any good results collecting all the reclaim left over from
> > glazing and mixing it together? I would like to hear if anyone out there
does
> this and if so, do they get anything interesting?
Some of the very best glazes I have ever used come from off the back of the
spray booth. I also enjoy that when it's gone it's gone. I also sometimes pour
buckets of glaze together, but I always dip a test tile and stick it in a
firing before trying it on a pot. From my experience trying the scrap glaze
blind and hoping it will work is a really good way to waste good pots and
expensive kiln shelves.
I love to hear when people like Paul combine, reuse and recycle. Good on
you!
David Beumee
Lafayette, CO
> on 11/18/03 10:11 AM, Paul at paul@DOCRET.COM wrote:
>
> > Has anyone had any good results collecting all the reclaim left over from
> > glazing and mixing it together? I would like to hear if anyone out there does
> this and if so, do they get anything interesting?
>
> I was amazed when I switched from cone 10 reduction to cone 5 oxidation that
> my scrap glaze looked exactly the same- a shiny medium-to-dark green. I use
> a lot of different glazes and I generate a lot of scrap. I spray a lot, I
> make a lot of glaze tests (some of which actually work) and I do a glazing
> technique that generates a lot of scrap because I don't wax the edges of my
> tiles. All of that goes into the rinse bucket, where the whisk lives.
> Cleaning off the table, scraping out glaze containers, washing off tools, it
> all goes in there. Did I mention that I make a LOT of scrap?
> I use it all. It seems to go at about the same rate it accumulates, which
> means I need to replenish the usable scrap glaze bucket from the bottom of
> the rinse bucket every few months.
> I mix the scrap half-and half with an opaque white to get a glaze that looks
> a lot like celadon at cone 4 oxidation.
> I mix it in the same proportion with a clear glaze (whatever clear I have
> the most of around, and I might at any one time have 5 of those) add some
> copper and cobalt and get a lovely deep shiny green
> I add extra colorant to it by itself to get a black. I usually add 1.5%
> each iron oxide and manganese dioxide, plus 0.5% cobalt carbonate and
> chrome oxide. Sometimes I'm even careful about measuring that. And
> sometimes I throw in any colorant I want to get rid of. Took me about 5
> years to get rid of some really crappy iron by using it for black.
> Sometimes I add tin oxide to it and, if I've been using any chrome glazes,
> I'll get a purple.
> Sometimes, depending on what glazes you've been using, rutile will make a
> wild effect.
> Or try line blending it into any other glaze you use. If your cobalt blues
> are too garish for your taste, a little scrap may be just the thing to tone
> them down.
> And if you want to see a truly gag-me awful color, try adding some vanadium
> yellow stain to it. I speak from experience here.
> But don't throw it away. You paid for it and it's still good.
> Paul Lewing, Seattle
>
> ______________________________________________________________________________
> 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.
iandol on fri 21 nov 03
Dear Friends,
I hope that all of these reclaim glaze residues are tested for stability =
before they are used other than as practice materials.
Best regards,
Ivor Lewis. Redhill, South Australian=20
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