Chamotte content: 25% Chamotte grain size: 0-0.2mm Drying Shrinkage: 7% Colour: light red (1070°C), dark red (1200°C) Burning Shrinkage: 5% (1070°C), 6% (1140°C), 7% (1200°C) Water absorption: 9% (1070°C), 3% (1140°C), 1%(1200°C) Coefficient of Thermal Expansion (20-400°C): 70 ×10-7/K (1070°C)