This clay fires to a warm brown colour. A very strong clay for handforming slab building. A high strength, high quality clay with similar forming characteristics as BRT and Keanes Toast. For firing, this clay should be bisque fired in an electric kiln to a minimum of 1080℃. and glaze fired 1080-1220℃. This is a coarse clay as contains 30 mesh grog. The strength of this clay makes it perfect for large foms. Shrinkage rate Bisque 7%. Earthenware 7 %. Midfire 9%. Stoneware 12%.