Premium Buff 1100-1290c

Premium Buff 151-1125 Recommended firing range 1100-1290C (Cone 02-11) Indicative texture 2 (Smooth 1-Coarse 10). Premium Buff is made to a hardness range between NGK 6-7, measured with an industry-standard penetrometer. Indicative % Total Contraction @ 1100c 10% / 1200C 12%* Our Premium Buff recipe is a 2022 re-working of our popular buff clay recipes (Buff School Clay 151-1120, 151-1124 Sanded Buff, Buff Stoneware 151-1117) which had to be discontinued due to unavailability of a staple raw material. Developed with a higher percentage of premium raw materials including the exclusive Coombe Fireclay available only to Potclays from the Birch Coppice clay mine in South Staffordshire. Coombe is a unique fireclay, rich in iron, producing a light fleck when fired at stoneware temperatures. Standard full bag size 12.5Kg