David Woof on fri 31 dec 10
=3D20
Hi Verna=3D2C =3D20
there should be no need to fire twice. Test the clear(s) for compatibility =
=3D
when sprayed over/under your other glazes before using in production.=3D20
When satisfied with the testing results=3D2C apply the clear as the base co=
at=3D
in the areas for the design - wax in your design - and then dip=3D2C pour =
or=3D
spray the major covering glaze(s) over all.=3D20
=3D20
Another question to ask when you have made your choice: does this new combi=
=3D
nation of overlapped glazes result in a stable and safe food and utility su=
=3D
rface. We have some good folks to ask so come back and ask when you are re=
=3D
ady.
=3D20
Left as bare clay=3D2C as someone else said=3D2C could result a staining pr=
oble=3D
m and aesthetic problems all the way to the noise your dinning utensils mak=
=3D
e when contacting that unglazed more abrasive surface. No doubt have utens=
=3D
il marking on the surface as well. Try it and see what you like. It remin=
=3D
ds me of the old Chinese restaurant ware=3D2C made sturdy for daily repetit=
iv=3D
e use and with an unglazed ring in the plate surface for the foot ring so t=
=3D
hat the ware could be stacked and fired with out plate setters or shelves. =
=3D
Not for fine dining but for feeding the hurried and hungry masses.
=3D20
Have fun=3D2C
=3D20
David Woof............Clarkdale=3D2C AZ..........New Years Eve...........
_______________________________________________________________
11a. need to glaze on ^5/6 clay
Posted by: "Rlucas" rlucas@CENTURYTEL.NET=3D20
Date: Fri Dec 31=3D2C 2010 9:16 am ((PST))
=3D20
If I put a design using wax resist on an area on a eating surface is it
food safe or do I need to fire again with
a clear glaze?
=3D20
Thanks
Verna Lucas
rlucas@centurytel.
=3D20
=3D
Rlucas on fri 31 dec 10
If I put a design using wax resist on an area on a eating surface is it
food safe or do I need to fire again with
a clear glaze?
Thanks
Verna Lucas
rlucas@centurytel.net
Dan Hill on fri 31 dec 10
Hi Verna
If you are firing a ^6 clay to maturity with a porosity of 1-2% then I thin=
k
food safe wise you would be O.K. That being said I would worry a bit about
the possibility of staining where you have no glaze not to mention your
knife may grind a bit there.
There are lots of functional high fire unglazed pots out there.
Dan Hill
Hill Pottery
^6 soda fired porcelain and stoneware
Soda firing workshops.
Verna wrote
> If I put a design using wax resist on an area on a eating surface is it
> food safe or do I need to fire again with
> a clear glaze?
Phoenix Rising Farm on sat 1 jan 11
Verna:
You put the wax resist on to keep glaze from getting on the design you
protect with the wax.
When you bisque/fire, the wax burns off.
You will need a clear glaze on that to render the clay impermeable.
No, I did not say "food -safe".
All clay is food safe...the food will not harm it if it is properly fired.
Best,
Wayne Seidl
On 1/1/2011 12:00 AM, Clayart automatic digest system wrote:
> Date: Fri, 31 Dec 2010 08:31:11 -0700
> From: Rlucas
> Subject: need to glaze on ^5/6 clay
>
> If I put a design using wax resist on an area on a eating surface is it
> food safe or do I need to fire again with
> a clear glaze?
>
> Thanks
> Verna Lucas
> rlucas@centurytel.net
>
>
--
Phoenix Rising Farm
393 on the Houlton Road
Waite, Maine 04492
A proud member of the
Washington County Food Alliance
Ron Roy on tue 4 jan 11
Hi Verna,
Not all clays sold mature at the temperature they are recommended to.
Best to test the clay to see if it will not absorb water, oil and food.
A simple way is to fire some unglazed cylinders and leave water in
them over night - with paper under them. If the paper is wet or
wrinkled after 12 hours the clay needs to be fired higher.
You can also test for water absorbency - not hard to do - Knowing what
percent of water is absorbed will help you make decisions about how
functional the clay really is. Let me know if you want me to send
instructions on how to test for absorbency.
RR
Quoting Rlucas :
> If I put a design using wax resist on an area on a eating surface is it
> food safe or do I need to fire again with
> a clear glaze?
>
> Thanks
> Verna Lucas
> rlucas@centurytel.net
>
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