Description
School Earthenware/Stoneware is a no fuss highly plastic white
clay for the education system.
Although this body is designed for educational facilities many
professionals have discovered School Earthenware/Stoneware. Mesh : 30 # Recommended Firing
Bisque
Glaze Earthenware
Glaze Middle Fire
Glaze Stoneware
1000° C
1060° C to 1100° C
1250° C
1280° C to 1500° C
Orton Cone 06
at 150° C per hour
Orton Cone 04 to 03
at 150° C per hour
Orton Cone 8 to 9
at 150° C per hour
Orton Cone 9 to 10
at 150° C per hour
Chemical Analysis
Shrinkage (fired)
SiO2
74.28%
From wet to dry
5.0%
± 0.5%
Al2O3
20.03%
From dry to bisque
0.5%
± 0.2%
TiO2
1.15%
From dry to glaze
7.0%
± 0.5% @ 1250° C
Fe2O3
0.92%
From dry to glaze
8.0%
± 0.5% @ 1300° C
CaO
0.28%
Water absorption
MgO
0.70%
Biscuit
1000° C
Orton Cone 06
18.0%
Na2O
0.78%
Fired
1250° C
Orton Cone 8 / 1
7.0%
K2O
1.87%
Fired
1300° C
Orton Cone 10
5.0%
L.O.I.
5.38%
Glazes
Decorative (non-functional) glazes are available in the
Walkers Stoneware, Middle Fire and Earthenware glaze ranges.
