Celadon biaxial - Matthew Blakely

 

Make up the four corner glazes, adding 0.5% red iron oxide to each corner glaze, and volumetrically blend to complete the 25 glaze grid. Seive through a 120 or preferably 200 mesh seive. Apply to test tiles with 2 dips giving medium and thick coverage.

 
A       B
         
         
         
C       D
 
A
B
C
D
Potassium feldspar
32.8
25.9
43.7
35.1

Whiting
19.4
15.3
25.8
20.7
Talc
3.5
2.7
4.6
3.7
China clay
21.6
17
12.6
10.1
Flint
22.8
39.2
13.2
30.4

For further information and a truly excellent glaze book, please see 'Stoneware glazes - a systematic approach' by Ian Currie, published by Bootstrap Press.