penni stoddart on tue 24 jul 07
I have been away from pottery for about 2 1/2 years due to a return to
school and a new job.
I want to mix up some new glazes to replace those I am using up as I go hog
wild in my studio this summer. BUT I just went through my recipes and my
stash of bags full of chemicals and I am not sure I have what I need. I did
a search in the archives but possibly may not have used the right search
words to find what I need.
I know that some chemicals are called one thing by one person and go = under
another name by someone else or else have short forms.
I have;
Bentonite
Ball Clay (OM4)
Vitrox
Feldspar (F4)
Dolomite
I need;
Wollastonite
EPK
Flint
Do I already have them labeled as something else or will I need to make = a
trip to the pottery supply store??
Thanks in advance for your help I feel like I am starting over again with
this!
Penni
London, Ontario
Fredrick Paget on tue 24 jul 07
>
>I have: Bentonite, Ball Clay (OM4 ), Vitrox, Feldspar (F4), Dolomite.
>
>
>I need: Wollastonite, EPK, Flint.
>
>Do I already have them labeled as something else or will I need to make a
>trip to the pottery supply store?
>
>Penni
>London, Ontario
>
Yes you will have to go out to the pottery store and buy them. No overlap here.
Flint is no longer used. Substitute silica. Flint was English stuff
and it is actually impure silica. Has calcium in it. Somehow it is
often used as a term for silica but is actually antique.
Fred
--
Twin Dragon Studio
Mill Valley, CA, USA
Timothy Joko-Veltman on tue 24 jul 07
On 7/24/07, penni stoddart wrote:
> I have;
> Bentonite
> Ball Clay (OM4)
> Vitrox
> Feldspar (F4)
> Dolomite
>
> I need;
> Wollastonite
> EPK
> Flint
>
> Do I already have them labeled as something else or will I need to make = a
> trip to the pottery supply store??
Nope, you will need to make a trip or a call to the pottery supply shop.
Regards,
Tim
Alisa Clausen on tue 24 jul 07
On Tue, 24 Jul 2007 11:27:58 -0400, penni stoddart
wrote:
>I have been away from pottery for about 2 1/2 years due to a return to
>school and a new job.
>
>
>
>I want to mix up some new glazes to replace those I am using up as I go
hog
>wild in my studio this summer. BUT I just went through my recipes and my
>stash of bags full of chemicals and I am not sure I have what I need. I
did
>a search in the archives but possibly may not have used the right search
>words to find what I need.
>
>
>
>I know that some chemicals are called one thing by one person and go =
under
>another name by someone else or else have short forms.
>
>
>
>
Hi Penny
Now you know that you will need to buy additional chemicals. It is good
that you are starting to mix glazes again.
I would recommend that you look at a book that lists ceramic materials to
familiarize yourself with materials again. There are not so many
different names for same materials, except if you talk about Silica, which
is also called Flint and Quartz. There are different types of same
materials, like Ball Clays and Feldspars. A periodical table for potters
found in Hamer and Hamer is one of the best sources for staight forward
information.
Chic Lotz has a poster breaking down all the materials in a very easy way
to learn and remember. You can contact her here on the for the poster.
It would be really helpful for you to begin to study material lists, found
in so many books, and then you will have a great advantage when stocking
your chemicals.
Good luck
Alisa in Denmark
sacredclay on wed 25 jul 07
I didn't know thatone. so will I have to recalculate my formulas if
say, an old recipe calls for flint? Or can just equal proportions sub
for equal amount? Kathryn in NC
> Flint is no longer used. Substitute silica. Flint was English stuff
> and it is actually impure silica. Has calcium in it. Somehow it is
> often used as a term for silica but is actually antique.
> Fred
> --
> Twin Dragon Studio
> Mill Valley, CA, USA
>
>
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