High Fire Clays
Showing 1–16 of 18 results
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Sanded Buff Stoneware Clay (Potclays)
£9.20 – £428.10 exc. Vat Out of Stock -
Crank Raku Stoneware Clay (Potclays)
£9.95 – £462.15 exc. Vat Please Select -
Flecked Stoneware Clay (Potclays)
£13.80 – £640.35 exc. Vat Please Select -
White Crank Smooth Handbuilding Clay (Potclays)
£17.00 – £787.25 exc. Vat Please Select -
Draycott White Stoneware Clay (Potclays)
£9.95 – £461.40 exc. Vat Please Select -
Oxidising St Thomas Stoneware Clay (Potclays)
£10.30 – £477.45 exc. Vat Please Select -
White St Thomas Stoneware Clay (Potclays)
£13.00 – £603.60 exc. Vat Please Select -
U/C Smooth Handbuilding Stoneware Clay
£7.80 – £318.45 exc. Vat Please Select -
White Stoneware Clay (Potclays)
£15.95 – £739.40 exc. Vat Please Select -
Original Craft Crank (Potclays)
£13.90 – £644.10 exc. Vat Please Select -
Premium Craft Crank Stoneware Clay (Potclays)
£14.10 – £652.30 exc. Vat Please Select -
College Buff Stoneware Clay (Potclays)
£7.20 – £334.65 exc. Vat Out of Stock -
U/C Crank Stoneware Clay
£10.40 – £480.50 exc. Vat Please Select -
U/C White Stoneware Clay
£9.20 – £426.00 exc. Vat Please Select -
U/C Toasted Stoneware Clay
£7.85 – £362.25 exc. Vat Please Select -
U/C Porcelain
£21.05 – £976.25 exc. Vat Please Select
Showing 1–16 of 18 results
High-Fire Stoneware Clay Bodies fire to their mature hardness between 1200°C and 1300°C.
Cone 10 clay can be used at low fire (Cone 04-06 or at Cone 6), but to reach its maximum strength it should be fired to Cone 10. That will cause the clay to shrink and become dense, and that is ideal, especially for dinnerware. You want as low absorption numbers on the stoneware and porcelain clay; for dinnerware, you want less than 3%. For sculpture you often want less shrinkage, and absorption doesn’t matter. So then firing Cone 10 clay at a lower temperature is ideal. Clays designed for sculpture have more “open” bodies so they don’t get as dense as other clays. An advantage of using Cone 10 clay is that you don’t have to worry about over firing your clay if you forget what Cone it is. For this reason, many schools and studios only allow Cone 10 clay. Cone 10 clay is also typically used for Raku, even though Raku is a low temperature process. Clays such as 1005 have good temperature shock absorption which is needed for Raku.
Remember, you have to fire your glaze to the Cone that is specified for that glaze, regardless what clay you use. Just make sure you use a clay rated at least as high as the glaze.
