Elizabeth Priddy on sat 5 jul 08
I left a little metal strip on a food item last week and it caught on fire =
in the microwave.
Although it was quite exciting for a few minutes there and it stayed alight=
for a good minute while I figured out what to do...no real harm.
=A0
Try it with a small quantity and see if it catches fire or de-crystallizes.
Not much can happen.=A0 And microwave bursts aren't going to change ceramic=
grade materials except water.=A0 At least that is what I think, YMMV.
Elizabeth Priddy
Beaufort, NC - USA
Natural Instincts Conference Information:
http://downtothepottershouse.com/NaturalInstincts.html
http://www.elizabethpriddy.com
http://www.flickr.com/photos/7973282@N03/
--- On Sat, 7/5/08, Suchman ceramics wrote:
From: Suchman ceramics
Subject: microwaving glazes
To: CLAYART@LSV.CERAMICS.ORG
Date: Saturday, July 5, 2008, 11:05 PM
I have a borax glaze that has crystallized. I've read that warming up the
glaze will dissolve the borax crystals. So far I'm using hot water baths
and it is going quite slowly. I was wondering if heating it up with a
micro-wave would work? There is copper in it. I do know that metal in the
micro is more of a caution and a myth than a real hazard. Do you think
there could be any change in the glaze chemistry?, I'm thinkin' not.=20
I'm
wonderin' what chya'll might be thinkin' bout' this?
Thanks,
-e-in-oside-=0A=0A=0A
Suchman ceramics on sat 5 jul 08
I have a borax glaze that has crystallized. I've read that warming up the
glaze will dissolve the borax crystals. So far I'm using hot water baths
and it is going quite slowly. I was wondering if heating it up with a
micro-wave would work? There is copper in it. I do know that metal in the
micro is more of a caution and a myth than a real hazard. Do you think
there could be any change in the glaze chemistry?, I'm thinkin' not. I'm
wonderin' what chya'll might be thinkin' bout' this?
Thanks,
-e-in-oside-
May Luk on sun 6 jul 08
Hello Suchman Ceramics;
Once I have heated (simmer on a stove) a glaze mixture because of the chunk=
y borax frit. The cooking melted the frit. The heat made the glaze smelled =
like laundry detergent (but slightly worse and irritating psychologically b=
ecause I wasn't sure if it was bad or not). I found the glaze fired more lu=
mpy on the surface. I didn't do any more investigating cause it was a bit t=
rivial compare to many other things I wanted to do in the studio at that ti=
me.
May
Kings County, NY
=20
--- On Sun, 6/7/08, Suchman ceramics wrote:
> From: Suchman ceramics
> Subject: microwaving glazes
> To: CLAYART@LSV.CERAMICS.ORG
> Date: Sunday, 6 July, 2008, 4:05 AM
> I have a borax glaze that has crystallized. I've read
> that warming up the
> glaze will dissolve the borax crystals. So far I'm
> using hot water baths
> and it is going quite slowly. I was wondering if heating
> it up with a
> micro-wave would work? There is copper in it. I do know
> that metal in the
> micro is more of a caution and a myth than a real hazard.=20
> Do you think
> there could be any change in the glaze chemistry?, I'm
> thinkin' not. I'm
> wonderin' what chya'll might be thinkin'
> bout' this?
> Thanks,
> -e-in-oside-=0A=0A=0A ______________________________________________=
____________=0ANot happy with your email address?.=0AGet the one you really=
want - millions of new email addresses available now at Yahoo! http://uk.d=
ocs.yahoo.com/ymail/new.html
Tony Ferguson on sun 6 jul 08
You glaze materials may off gas at least on some level in the microwave. Combining elements with food surface related things may just not be worth the risk of contaminating your own food. It should just re-hydrate I would think over a few days or so?
Tony Ferguson
Suchman ceramics wrote: I have a borax glaze that has crystallized. I've read that warming up the
glaze will dissolve the borax crystals. So far I'm using hot water baths
and it is going quite slowly. I was wondering if heating it up with a
micro-wave would work? There is copper in it. I do know that metal in the
micro is more of a caution and a myth than a real hazard. Do you think
there could be any change in the glaze chemistry?, I'm thinkin' not. I'm
wonderin' what chya'll might be thinkin' bout' this?
Thanks,
-e-in-oside-
Tony Ferguson
315 N. Lake Ave. Apt 312
Duluth, MN 55806
...where the sky meets the lake...
Artist, Educator, Photographer, Film Maker, Web Meister
fergyart@yahoo.com
(218) 727-6339
http://www.tonyferguson.net
Tommy Humphries on sun 6 jul 08
strain the chrystals out of the glaze, grind them in a mortar(or just
crush them with a hammer or some such, then add them to some boiling
water. the borax will dissolve faster when crushed.
Tommy Humphries.
Don Goodrich on sun 6 jul 08
Hi, -e-in-oside-
Yep, microwaving those crystals should work. Every winter some
of the glazes stored in my chilly studio generate a batch of hexagonal
crystals. I stir them, pour them from their plastic buckets into glass or
ceramic bowls, cover them with a lid, and microwave them on low power
for a minute or two. Usually that isn't enough time to dissolve all the
crystals, but allowing it to boil would be messy so I repeat this a few times
until the crystals are gone.
Since we're evidently not using the same glaze your experience may
vary, but the copper in your glaze will not likely get violently reactive
with low-level microwaving. Be sure to use a microwave-safe vessel
for this, and cover it to avoid splatters in the oven. You might want to
dedicate a second-hand Corningware pot for this purpose, if it will be a
recurring event.
Cheers,
Don Goodrich
http://dongoodrichpottery.com/
**************
Gas prices getting you down?
Search AOL Autos for fuel-efficient used cars.
(http://autos.aol.com/used?ncid=aolaut00050000000007)
Elizabeth Priddy on sun 6 jul 08
They are right.=A0 Don't use your food microwave for this.
=A0
E
Elizabeth Priddy
Beaufort, NC - USA
Natural Instincts Conference Information:
http://downtothepottershouse.com/NaturalInstincts.html
http://www.elizabethpriddy.com
http://www.flickr.com/photos/7973282@N03/
--- On Sun, 7/6/08, Tony Ferguson wrote:
From: Tony Ferguson
Subject: Re: microwaving glazes
To: CLAYART@LSV.CERAMICS.ORG
Date: Sunday, July 6, 2008, 11:54 AM
You glaze materials may off gas at least on some level in the microwave.=20
Combining elements with food surface related things may just not be worth t=
he
risk of contaminating your own food. It should just re-hydrate I would thi=
nk
over a few days or so?
Tony Ferguson
Suchman ceramics wrote: I have a borax glaze that
has crystallized. I've read that warming up the
glaze will dissolve the borax crystals. So far I'm using hot water baths
and it is going quite slowly. I was wondering if heating it up with a
micro-wave would work? There is copper in it. I do know that metal in the
micro is more of a caution and a myth than a real hazard. Do you think
there could be any change in the glaze chemistry?, I'm thinkin' not.=20
I'm
wonderin' what chya'll might be thinkin' bout' this?
Thanks,
-e-in-oside-
Tony Ferguson
315 N. Lake Ave. Apt 312
Duluth, MN 55806
...where the sky meets the lake...
Artist, Educator, Photographer, Film Maker, Web Meister
fergyart@yahoo.com
(218) 727-6339
http://www.tonyferguson.net=0A=0A=0A
John Post on mon 7 jul 08
John Post
Sterling Heights, Michigan
An alternative approach to trying to eliminate the crystals is to just
use your glaze the way it is. I like variegation in my glaze surfaces
and little spots with extra flux help to do this. I have a few glazes
that grow crystals and I just use them as is, crunchy bits and all.
:: cone 6 glaze website :: http://www.johnpost.us
:: elementary art website :: http://www.wemakeart.org
On Jul 6, 2008, at 10:33 PM, Don Goodrich wrote:
> Yep, microwaving those crystals should work. Every winter some
> of the glazes stored in my chilly studio generate a batch of hexagonal
> crystals. I stir them, pour them from their plastic buckets into
> glass or
> ceramic bowls, cover them with a lid, and microwave them on low power
> for a minute or two. Usually that isn't enough time to dissolve all
> the
> crystals...
.
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