Chamotte
Red terracotta body with 5%, 10 mesh natural grog added.
Drying shrinkage 5-7%
Cone 02 - Shrinkage 13%, Absorption 6.3%
Cone 3 - Shrinkage 13%, Absorption 4.8%
Cone 5 - Shrinkage 13%, Absorption 2.9%
Bisque fire 1000 C (if your clay is thick, slow firing is advised especially between 300-800 C to ensure all organics are burnt out)
20kg
Red terracotta body with 5%, 10 mesh natural grog added.
Drying shrinkage 5-7%
Cone 02 - Shrinkage 13%, Absorption 6.3%
Cone 3 - Shrinkage 13%, Absorption 4.8%
Cone 5 - Shrinkage 13%, Absorption 2.9%
Bisque fire 1000 C (if your clay is thick, slow firing is advised especially between 300-800 C to ensure all organics are burnt out)
20kg
Red terracotta body with 5%, 10 mesh natural grog added.
Drying shrinkage 5-7%
Cone 02 - Shrinkage 13%, Absorption 6.3%
Cone 3 - Shrinkage 13%, Absorption 4.8%
Cone 5 - Shrinkage 13%, Absorption 2.9%
Bisque fire 1000 C (if your clay is thick, slow firing is advised especially between 300-800 C to ensure all organics are burnt out)
20kg