BULK ORDER of 10 or 25 bags of clay at 10kg per bag. Economical general purpose clay, suitable for handbuilding or wheel throwing. Needs higher firing temperatures if vitrification is required. Recommended bisque 1050℃ and can be glazed from 1080-1250℃.Shrinkage rate Bisque 5%. Earthenware 6 %. Midfire 9%. Stoneware 10%.