BULK ORDER of 10 or 25 bags of clay at 10kg per bag. The Bulk options are best for schools, studios and workshops as are the most economical price per bag for purchasing this clay. Perfect for school projects due to the plastic nature and white colour of this clay. This clay fires to earthenware temperatures which will prolong the wear and tear on your school kiln. This fine, white firing clay is good for coloured glaze application because it keeps the glaze colours bright. The high plasticity of this clay makes this clay suitable for throwing and handforming at 80 mesh. Recommended bisque temperature 1050℃. and glaze temperature 1080-1180℃. Shrinkage rate Bisque 7%. Earthenware 7%. Midfire 7%.