Ababi on mon 22 sep 03
Slowly slowly I shall add materials; you will look around and say: But I
didn't want to make the glazes!
When I started to make glazes my teacher gave me a big list. No wonder!
She did not have to pay for the materials.
I will do it slower, considering it like I am the one who pays!
We use the clear glaze from your supplier. Remember you can do these
tests in any cone!
Please buy minimal amounts of these materials.
Cobalt oxide or carbonate,
Black copper oxide
Red iron oxide
Ultrox or Zircopax.
Tin oxide.
There is an advantage of using the ready made glazes:
You make tests and blends much faster.
To that yellow glaze, the one you liked add: 5% tin oxide.
To a second batch add 10% ultrox. Which of them you like better?
The warm tin yellow or the shining ultrox yellow?
Another test:
To 10 grams of your glaze: add 1 gram tin and to a second batch of 10
grams add 1 gram of ultrox. Fire and decide:
Is it true that the tin is a stronger opacifier?
Now I want to recommend you another book:
The Penland Book of Ceramics: Master Classes in Ceramic Techniques.
In a section of this book this book Linda Arbuckle, explain her
technique of Majolica.
Of course it is not the only way to learn majolica.
Go to
http://grafik.sdsu.edu/ceramicsweb//
In there go to:
Education>--> Articles on a variety of ceramic topics
and there read:
Majolica Overview
| Majolica
Recipes
|
Majolica Bibiography
- by Linda Arbuckle. Historical and technical info on this popular
technique.3
Another source to learn:
http://www.digitalfire.ab.ca/cermat/education/207.php
Just do not panic! You can read it without a translator!
If some parts are too hard bookmark them and come again another time.
Now, please prepare your base, 100 grams. Add either 5-10 tin (10 is
better but it is a very expensive material). Apply one plate one.
Underneath write 1 or tin
The same amount of base with 10-15 ultrox. Apply it on a plate two
underneath; with an engob or a ceramic pencil write 2 or ultrox.
Take three jars. To each one add one spoon of each oxide
One with Cobalt oxide or carbonate.
The second with Black copper oxide.
To the third: Red iron oxide.
Add CMC and water. How much? 100-150 milliliter water and a spoon of
ready to use CMC gel. (I mix1 gram of CMC to 20 gram of boiled water )
Write with a white marker what inside each jar.
On the plates or tiles, paint around with the cobalt thin and thick
lines.
Do the same way with the other oxides.
After the firing look and see. Which results you liked more? The way the
oxides were on the base + tin or the way it was on the base + ultrox? It
might be that one oxide you like one way and the other in the second
way.
I use the ultrox (twice in amount than tin) still it costs me half!
It is now exactly midnight; I will look again for mistakes and send.
Good night Ababi
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910
http://www.matrix2000.co.nz/Matrix%20Demo/Ababi.htm
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