Technical Specifications
Description
White firing stoneware ideal for functional throwing &
pressing extending also to sculpture and slab work.
Mesh : 120#
Recommended Firing
|
Bisque |
Glaze |
|
1000° C to 1060° C
Orton Cone 06 to 04 |
1260° C to 1300° C
Orton Cone 8 to 10 |
|
at 150° C per hour |
at 150° C per hour |
Coefficient of Expansion
Sample fired at 1280° C, Orton cone 9. Linear expansion is
0.327% at 500° C and coefficient is 69.0 x 10-7 from 200° C to 500° C.
|
Chemical Analysis |
Shrinkage (fired) |
|
SiO2 |
72.63% |
From wet to dry |
3.5% |
± 0.5% |
|
Al2O3 |
21.53% |
From dry to bisque |
0.4% |
± 0.2% |
|
TiO2 |
0.89% |
From bisque to glaze |
8.0% |
± 0.5% |
|
Fe2O3 |
0.59% |
|
CaO |
1.49% |
Water |
|
MgO |
0.55% |
Biscuit |
1000°C |
Orton Cone 06 |
14.5% |
|
Na2O |
0.50% |
Fired |
1225°C |
Orton Cone 6 |
less than 2% |
|
K2O |
1.38% |
Fired |
1260°C |
Orton Cone 8 |
0% |
|
L.O.I. |
7.50% |
Glazes
Functional and decorative glazes are available in the Walkers
Stoneware glaze range. Compatible clear glazes are WSG30 or WSG31 (zinc free).
If making your own glazes contact us for technical assistance if required.
