BULK ORDER of 10 or 25 bags of clay at 10kg per bag. The Bulk options are best for schools as are the most economical price per bag for purchasing this clay. The bulk price is also good for a studio or workshop. This white stoneware paper clay is suitable for handbuilding or wheel throwing with paper pulp addition. This clay is best for when a high temperature paper clay is required. It needs the higher firing temperatures if vitrification is required. Recommended bisque temperature 1050℃. and glaze temperature 1260-1280℃. Shrinkage rate Bisque 8%. Earthenware 9 %. Midfire 12%. Stoneware 14%.