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old glaze

updated sun 24 jul 05

 

Sue Beach on thu 21 jul 05


I'm starting back into my studio after 8+ months of no clay work. I have
several buckets of glaze that I'd mixed up last fall & haven't touched in all
that time. Most (but not all) come from Mastering ^6 Glazes. I've had
experiences before with old glaze not working the same as freshly mixed glaze,
so I wondered if you all could give me any tips about using these glazes? Or
should I just dump 'em & start fresh? My frugal side wants to try & use them.
But if they are too old to salvage, I will start again. They did not freeze or
anything, just sitting in covered buckets since last November.

Sue Beach
Muncie, IN

Andie Plamondon on thu 21 jul 05


I've got buckets from years ago that I use - just mix extrememly well and go
for it.

:) Andie Plamondon
Handful of Earth Pottery
www.handfulofearth.com

----- Original Message -----
From: "Sue Beach"
To:
Sent: Thursday, July 21, 2005 9:30 AM
Subject: [CLAYART] Old Glaze


> I'm starting back into my studio after 8+ months of no clay work. I have
> several buckets of glaze that I'd mixed up last fall & haven't touched in
> all
> that time. Most (but not all) come from Mastering ^6 Glazes. I've had
> experiences before with old glaze not working the same as freshly mixed
> glaze,
> so I wondered if you all could give me any tips about using these glazes?
> Or
> should I just dump 'em & start fresh? My frugal side wants to try & use
> them.
> But if they are too old to salvage, I will start again. They did not
> freeze or
> anything, just sitting in covered buckets since last November.
>
> Sue Beach
> Muncie, IN
>
> ______________________________________________________________________________
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Ann Brink on thu 21 jul 05


Sue- 8 months is nothing in the life of a bucket of glaze! Just stir well
and strain, in case some of the ingredients have grown little nodules of
material that will cause white kernels on your glaze surface. I said the
other day that I hate screening clay, but I always strain my glazes. Not a
terribly fine strainer- just one of the finer versions from a good kitchen
supply store. I don't have the patience for the routine with the 100 mesh
sieve and a brush.

Ann Brink in Lompoc CA


----- Original Message -----
From: "Sue Beach"

> I'm starting back into my studio after 8+ months of no clay work. I have
> several buckets of glaze that I'd mixed up last fall & haven't touched in
all
> that time. Most (but not all) come from Mastering ^6 Glazes. I've had
> experiences before with old glaze not working the same as freshly mixed
glaze,
> so I wondered if you all could give me any tips about using these glazes?
Or
> should I just dump 'em & start fresh? My frugal side wants to try & use
them.
> But if they are too old to salvage, I will start again. They did not
freeze or
> anything, just sitting in covered buckets since last November.
>

William & Susan Schran User on thu 21 jul 05


On 7/21/05 9:30 AM, "Sue Beach" wrote:

> I have
> several buckets of glaze that I'd mixed up last fall & haven't touched in all
> that time. Most (but not all) come from Mastering ^6 Glazes. I've had
> experiences before with old glaze not working the same as freshly mixed glaze,
> so I wondered if you all could give me any tips about using these glazes? Or
> should I just dump 'em & start fresh? My frugal side wants to try & use them.

I would suspect most of the glazes from Mastering ^6 Glazes are formulated
of non-soluble materials and may be fine. Other glazes containing materials
such as gerstley borate that are soluble may be an issue.

I'd suggest re-sieving the glazes and running a test firing before you dump
them.


--
William "Bill" Schran
Fredericksburg, Virginia - where it's been in the 90's all week and my AC
broke down Tuesday.

Earl Brunner on thu 21 jul 05


I believe this is more true of MC6G glazes than say glazes made with Gerstley Borate, however, I have noticed some precipitate over time in most of the ones I use, small light colored flat chip like things. If I rescreen with my bare hands, they will actually cut up the surface of my hands. I was speculating that it was coming from the Wollastonite, but I'm not sure that is the common denominator.

William & Susan Schran User wrote:On 7/21/05 9:30 AM, "Sue Beach" wrote:

>
I would suspect most of the glazes from Mastering ^6 Glazes are formulated
of non-soluble materials and may be fine. Other glazes containing materials
such as gerstley borate that are soluble may be an issue.

I'd suggest re-sieving the glazes and running a test firing before you dump
them.


--
William "Bill" Schran
Fredericksburg, Virginia - where it's been in the 90's all week and my AC
broke down Tuesday.

______________________________________________________________________________



Earl Brunner
e-mail: brunv53@yahoo.com

John Hesselberth on thu 21 jul 05


Hi Sue,

Use them. Just make absolutely sure they get completely redispersed and
mixed. The way I like to do this is to resieve them a couple time. That
makes sure you get ALL the stuff on the bottom redispersed. I have
reused glazes that have been around for 2-3 years will no problems IF I
get them completely redispersed.

Regards,

John
On Jul 21, 2005, at 9:30 AM, Sue Beach wrote:

> Most (but not all) come from Mastering ^6 Glazes. I've had
> experiences before with old glaze not working the same as freshly
> mixed glaze,
> so I wondered if you all could give me any tips about using these
> glazes? Or
> should I just dump 'em & start fresh?
John Hesselberth
http://www.frogpondpottery.com
http://www.masteringglazes.com

Nan Thurn Kitchens on fri 22 jul 05


Sue in Muncie,
I just had the same dilemma.
My glazes were over a year old and sitting in South Fla temps, in plastic
tubs, with good lids.
I opened the lids and poured in water, ran two through a blender I use for
glazes only.
The really settled out glaze was so hard I added a little epsom salt and
water mixture
and fit my electric drill with my paint/glaze mixer and kept mixing it until
my sneakers
were covered with splashes.
I fired them at ^6 with no obvious differences from when they were newly
mixed.
These were NOT John/Ron glazes but they performed fine.
My best suggestion is the usual answer found here:
Test it...
then tell us about it.
One more bit of knowledge about these wonderful glazes...

Nan Thurn Kitchens
Architectural Clayworks
Box 371070
Key Largo Florida 33037
305-451-9885

Sue Beach on fri 22 jul 05


Thanks to everyone who took time to answer my question about my old glazes.
Apparently 8 months untouched in a bucket isn't really that long for glazes.
Everyone gave much the same advice: Mix, mix, mix, screen, & test before
committing. Will do. Thanks!

Sue Beach
Muncie, IN

Rick Bonomo on sat 23 jul 05


Sue,

The glaze I used for this pot was 15 years old:

http://www.ricks-bricks.com/pottery/Lines.htm



Rick Bonomo
http://www.ricks-bricks.com/contact.htm



Date: Fri, 22 Jul 2005 12:57:17 -0500
From: Sue Beach
Subject: Re: Old Glaze

Thanks to everyone who took time to answer my question about my old =
glazes.
Apparently 8 months untouched in a bucket isn't really that long for =
glazes.
Everyone gave much the same advice: Mix, mix, mix, screen, & test =
before
committing. Will do. Thanks!

Sue Beach
Muncie, IN