Stoneware Buff Clay 12.5kg

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General purpose clay, splendidly developed body, based on highly refractory fire clays and grog additives, giving a high resistance to warping and cracking. It has a very plastic f eel and is excellent for throwing, casting and modelling. It fires to a light grey colour. Firing temperature: 1140-1260°C Supplied in 12.5kg bags. Technical Information:Si02%: 59.27Ti02%: 1.17AL203%: 25.90Fe203%: 1.72P205%: 0.04Ca0%: 0.24Mg0%: 0.68K20%: 2.26Na20%: 0.22Total Contraction 1200°C: 13.40%Pre Fired Total: 12.60Thermal Expansion 500°C: 0.258%, 600°C: 0.340%Texture (1=smooth, 10=Coarse): 5Fired Colour: Buff Safety Data Sheet (pdf) This is not air drying clay. Show more