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Original Craft Crank 1170-1300C
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About
Original Craft Crank™ 153-1114
Regarded by many as the best crank clay available, and unsurpassed as a handbuilding clay. The unique blend of fireclays and ball clays produce a pleasant toasted colour in oxidation, whilst the speckled orange-brown under reduction is unrivalled. Carefully graded grog additions to a superb blend of clays makes this clay outstanding for all larger forms of slabbing and handbuilding. The unique plasticity of the clay enables the more adventurous potter to throw with it.
- Recommended Firing Range 1170-1300C (Cone 5-12)
- Indicative texture 8 (Smooth 1-Coarse 10).
- Indicative % Total Contraction @ 1100C/1200C 9%*
- 'Toasting' occurs in the firing when the soluble salts in the body combine with the iron content at higher temperatures. This toasting is more pronounced in thicker section ware which has been dried slowly and fired to a higher temperature.
- Standard full bag size 12.5Kg
Compare all of the clays in our range | View our table of similar/alternative clays
Please note our clay is sold by approximate weight. Your total order weight for a specific clay body will be despatched in the most economic combination of packs possible. If you require individual packs of a specific size, please state this in the Special Instructions during checkout.
To comply with RHA regulations concerning tail-lift deliveries (where there is no fork-lift truck available at the delivery point) the maximum net weight of clay we are now permitted to pack on standard pallet is 950kg (76 x 12.5kg bags of clay). To achieve the best price for your clay, please add the full 1000kg to your cart when checking out and we will make the necessary weight adjustment/refund when we receive the order.
We have added cone numbers to our firing ranges for guidance purposes. Please refer to the 60c/hr column for large regular or self-supporting cones on the Orton Cones Conversion Chart which can be downloaded here.
* You can find typical shrinkage data in the CLAY ANALYSES chart which is available for download from this link: https://www.potclays.co.uk/Technical-Information. These figures are taken from tests performed under laboratory conditions and are intended for guidance only. For this reason, it is always recommended to also run shrinkage tests in your own application.
Technical data is approximate and provided for guidance only. Our Clay Analyses sheet can be downloaded here.
Credit to: Izzy Letty izzylettyceramics.com
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