Heidrun Schmid on fri 15 sep 00
I keep 2 buckets for my scrap glazes, one is for light coloured and the
other for dark colours. When the bucket is half full I test the glaze.
The dark one usually is a semitransparent shiny brown. I test 100 gr
batches of this with varying amounts of China Clay and Red Iron Oxide. .
I then measure the weight of the bucket and alter this accordingly. This
glaze is my Black from scrap! It is a matt black and I use it for big
Vases, mostly slab built or as accents on other pieces. The bucket with
the light glazes sometimes turns out nice as it is, I have one
transparent green and one opaque blue. Since I make mostly flower
containers in all shapes it works fine for me and I do not have to throw
away anything. If I do not use the light coloured glazes up or get tired
of them, in they go with the dark glaze scraps ...
Heidrun in Bangkok
Deborah Thuman on wed 18 aug 10
Lili said she strongly believes in recycling glaze.
Um... how does one recycle glaze? Usually, we use up every last drop
of glaze. We do very small test batches and if it looks poopy after
being fired, on to the next experiment. Jim works in 25 gram batches
for his glaze tests.
Deb Thuman
http://debthumansblog.blogspot.com/
http://www.etsy.com/shop.php?user_id=3D5888059
http://www.facebook.com/pages/Deb-Thumans-Art-Page/167529715986
Paul Lewing on wed 18 aug 10
On Aug 18, 2010, at 6:11 AM, Deborah Thuman wrote:
Um... how does one recycle glaze? Usually, we use up every last drop
of glaze. We do very small test batches and if it looks poopy after
being fired, on to the next experiment. Jim works in 25 gram batches
for his glaze tests.
That's a very tiny sample. Easy to be way off on your calculations if
you add stuff to a batch that small. I do 100 grams and many people
think that's too small.
But the best way to recycle glaze is to add stuff to it. Your scrap
by itself probably comes out kind of army green. I make a lot of
scrap glaze and I use it all. A lot of it becomes my black glaze. I
add 1.5% each iron and manganese, plus .5% cobalt carb and chrome
oxide. I also make a glaze that looks much like celadon by mixing
scrap half and half with a very opaque white glaze. And I make a
really nice dark green by mixing it half and half with a clear (any
clear) and adding a tiny bit of cobalt and some copper (This is in
oxidation). If you're using any chrome glazes at all, you might get a
pink by adding 5% tin. Also try adding rutile or titanium to make a
more interesting surface. And line blend it into all your other
glazes in 10% increments. No telling what you'll get.
Paul Lewing
www.paullewingtile.com
www.paullewingart.com
Deborah Maxwell on wed 18 aug 10
Grunge Glaze - I have a bucket that my leftover glazes go into. It is alway=
=3D
s changing=3D2C mostly blue to green to brown. It can never be matched or m=
ad=3D
e the same again=3D2C which is fine for the pieces I glaze. Most of the tim=
e =3D
I use it as an accent or dip the rims. It's never the same twice which I kn=
=3D
ow bothers people=3D2C but I would rather recycle than match.
=3D20
Besides=3D2C people get a chuckle out of name when they ask.
=3D20
=3D20
=3D20
Deborah J. Bassett-Maxwell
Red Mudd Studio=3D2C LLC
640 Richman Road
Kimball=3D2C MI 48074
810.367.7001
maxwelldeborah(at)hotmail(dot)com
www.redmuddstudio.com
=3D20
=3D20
> Date: Wed=3D2C 18 Aug 2010 07:11:32 -0600
> From: debthuman@ZIANET.COM
> Subject: Recycling glaze
> To: Clayart@LSV.CERAMICS.ORG
>=3D20
> Lili said she strongly believes in recycling glaze.
>=3D20
> Um... how does one recycle glaze? Usually=3D2C we use up every last drop
> of glaze. We do very small test batches and if it looks poopy after
> being fired=3D2C on to the next experiment. Jim works in 25 gram batches
> for his glaze tests.
>=3D20
> Deb Thuman
> http://debthumansblog.blogspot.com/
> http://www.etsy.com/shop.php?user_id=3D3D5888059
> http://www.facebook.com/pages/Deb-Thumans-Art-Page/167529715986
=3D
John Post on wed 18 aug 10
I am a non-glaze recycler. When I have tried recycling glaze in the
past, the new glaze slop always seems to mature at a lower temperature
than I usually fire to. I attribute this to the slop glaze having a
much wider variety of fluxes in it. More flux variety =3D more melt.
When I get tired of a glaze that works well in my studio, I take it to
my classroom and let my students use up the rest of it.
I did have some luck with recycling a long while back. I made three
separate slop containers. One for blue or green glazes, one for cream
and iron glazes and a third for dark glazes. The blue green bucket
was the only one that gave me a glaze that was a real winner. The
other two buckets were shiny passable glazes but nothing I wanted on
my pots.
I work hard to get the glaze effects that I do like, so I don't like
to glaze my pots with glazes I am not interested in just to use it up.
John Post
Sterling Heights, Michigan
http://www.johnpost.us
Eleanor on thu 19 aug 10
Deb said:
> Um... how does one recycle glaze?
I don't like making glaze: developing formulae; weighing and
measuring; mixing; sieving; line blends...................... and
testing, testing, testing in general. What I like is making the pots.
And I think I am not alone.
I make up 500 gram mixes of other peoples' glazes and "test" them on
mugs mostly. If a glaze works for me I use it, either by itself or,
more often, layered with other glazes. One of my favorites is Opal
(blue) from the Internet dipped into Licorice (M^6G). Lovely effects.
Glazes that don't work for me go into a bucket labelled JUNK. When I
am ready to glaze pots I mix up the JUNK and use as a liner where the
sun don't shine: narrow-necked bottles; flower pots, etc.
I fire to ^6 electric and the funny thing is, JUNK fires beautifully.
No crazing, no crackle, no crawling, no pinholes. Just a smooth,
satiny surface that stays that way over time. Awful color however.
Recently, in my flower pots, I noticed that where JUNK came in contact
with the outside glaze, there were some nice color effects. So I will
be "testing" layering JUNK with other glazes. This is good because the
JUNK bucket is very full ;-)
No, I won't buy commercial glaze mixes. I have seen them in real life;
they don't look as good as they do in the ads---they look kinda dead.
Just my opinion.
Eleanor Kohler
Centerport, NY
".... philosophers lay down many precepts fair in argument but not
applicable in use"
--Sir Francis Bacon
Eric Hansen on sat 21 aug 10
Excellent post! I call it mystery glaze, of which I have two kinds, a
buttery smooth satin white with a slight bit of copper green in it,
and mystery glaze black which I am sure should never be used as a
liner glaze. I'll suggest another way to "recycle" this stuff which
would be to make "quarry" tiles
h a n s e n
On Thu, Aug 19, 2010 at 10:29 AM, Eleanor wrote=
:
> Deb said:
>
>> Um... how does one recycle glaze?
>
> I don't like making glaze: developing formulae; weighing and
> measuring; mixing; sieving; line blends...................... and
> testing, testing, testing in general. What I like is making the pots.
> And I think I am not alone.
>
> I make up 500 gram mixes of other peoples' glazes and "test" them on
> mugs mostly. If a glaze works for me I use it, either by itself or,
> more often, layered with other glazes. One of my favorites is Opal
> (blue) from the Internet dipped into Licorice (M^6G). Lovely effects.
>
> Glazes that don't work for me go into a bucket labelled JUNK. When I
> am ready to glaze pots I mix up the JUNK and use as a liner where the
> sun don't shine: narrow-necked bottles; flower pots, etc.
>
> I fire to ^6 electric and the funny thing is, JUNK fires beautifully.
> No crazing, no crackle, no crawling, no pinholes. Just a smooth,
> satiny surface that stays that way over time. Awful color however.
>
> Recently, in my flower pots, I noticed that where JUNK came in contact
> with the outside glaze, there were some nice color effects. So I will
> be "testing" layering JUNK with other glazes. This is good because the
> JUNK bucket is very full ;-)
>
> No, I won't buy commercial glaze mixes. I have seen them in real life;
> they don't look as good as they do in the ads---they look kinda dead.
> Just my opinion.
>
> Eleanor Kohler
> Centerport, NY
>
>
>
>
>
>
> ".... philosophers lay down many precepts fair in argument but not
> applicable in use"
>
> --Sir Francis Bacon
>
--
Eric Alan Hansen
Stonehouse Studio Pottery
Alexandria, Virginia
americanpotter.blogspot.com
thesuddenschool.blogspot.com
hansencookbook.blogspot.com
"To me, human life in all its forms, individual and aggregate, is a
perpetual wonder: the flora of the earth and sea is full of beauty and
of mystery which seeks science to understand; the fauna of land and
ocean is not less wonderful; the world which holds them both, and the
great universe that folds it in on everyside, are still more
wonderful, complex, and attractive to the contemplating mind." -
Theodore Parker, minister, transcendentalist, abolitionist (1810-1860)
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