Bill Edwards on sun 8 dec 02
Hi,
Ababi what we can do is this. Test the glaze and let
the group know your results. If they are some
calculating needs we can do these on a per need basis
so each clayarter that is interested can follow the
process so they can work to achieve the results they
want. Maybe?
Heres some things that might help as well.
Neph Syen is blue mountain. I have subbed others but I
usually stick with Blue Mtn.
Mix well. Theres no such thing as mixing too much for
this glaze. No need to strain unless you fail to mix
well. Make sure it is as thick as heavy cream. Once
fired it you don't get a good clean maroon red on the
sides of a vertical piece, let it stand remove some
water and try again. Some people have the nack for
adding epsom salts and other thickeners out of habit
prior to testing. Get the results in color first and
if you like it thicker or need a tougher glaze you can
then experiment with CMC or epsom salts or bentonite.
In this case theres some good clay in the mix so using
some epsom salts after the first testing would be up
to you. Its based on how often you use the glaze but I
have yet to see this settle into a hard mass.
Several of these materials can be altered but I
arrived at the best color I could find using the
listed materials. I went back in the archives when I
first posted this over 2 years ago and looked at my
records compared them with today and was thinking how
evolutionary this is. I was using calculations then
and compared some to now and I find that some original
imputting of information has also changed based on new
chemical properties I recieved from the manufacturers
of some items. (Keeping it current) So a real tricky
color can rely on the day to day changes of chemicals
as we have seen with cobalt and in particularly with
Gerstley Borate. I have 5 different batches of that
stuff and all are different. My stash for raku!
Just have fun with the glaze if you want to work on a
red maroon. I need to know the clay you use if you are
not getting the desired results. But I believe many
will find this to work well since I hate fighting with
a real picky glaze and I formulate as often as I can
so I don't have to.
William Edwards
=====
http://www.tallapoosariverpottery.com/
Bill Edwards
PO Box 267
Lafayette, AL, 36862
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Ababi on thu 12 dec 02
Hello Bill
Sunday morning I prepared the glaze, knowing I will fire it on Thursday, I can do exactly
how you told me.
Sunday evening ( when you had your 10 o'clock break or so) I realized the kiln was full I
decided to test it anyway.
On my simple (yet good) claybody White stoneware rang 1000-1280C (SM0.2 of
Fuchs-Ton) it was pretty good
On my excellent porcelain like stoneware WB0408 of Vingerling rang 1200-1280C was
pretty good too.
On my cream mottled with pyrite claybody of Fuchs-Ton was very interesting: I belive
because of the pyrite was red - green.
In general the color was not good enough. In my next ^6 firing I will re test this glaze
along with other similar recipes too.
I am using an advise from Tom buck to create similar glaze using a new base, based
on my Strontium 4b base. This base , I plane will not need strontium or cryolite that or
expensive and sometimes hard to find.
Me good friend Yehuda Koren gave me some of his old books,
The pictures there are black and white but the information is pure gold!
With lead to better glazes (leadless of course)
Ababi
---------- Original Message ----------
>Hi,
>Ababi what we can do is this. Test the glaze and let
>the group know your results.
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