Sio-2 PM Black Earthenware
$ 31.85 New Available online
SiO-2 Clay

Sio-2 PM Black Earthenware

$31.85

Item #: SIOPM

Quantity Discounts:
Qty: Unit Price:
5 $28.67
10 $25.48
25 $22.30
50 $19.11


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Sio-2 PM Black Earthenware
Sold in 27.5lb bags

Black manganese earthenware clay. Its black colour in oxidising atmosphere is a highlight in the range of low firing colours. Its fineness and plasticity make it an excellent choice for throwing and modelling. Very good behaviour with standard pottery glazes. Available in extruded body (moist form), perfect for wheel-throwing, modelling and shaping procesess.

Firing - Ceramic kiln low fire
Weight/Volume - 27.5lbs / 12.5 kg
Grog - Ungrogged
State - Moist form (plastic body)
Stiffness - For wheel throwing and modelling/handbulding

Firing range: Cone 06-05 (1788º-1877ºF / 970-1025ºC)
Water content: 21%
Plasticity (IP Atterberg): 16
Carbonate content (CaCO3): 8%
Drying shrinkage: 5.0%
Firing shrinkage at Cone 06: 0.9%
Porosity (water absorption) at Cone 06: 14.3%
Dry bending strength: 4.5 N/mm2
Fired bending strength at Cone 06: 28.9 N/mm2
Thermal coefficient (a25-500ºC): 77.9x10-7ºC-1




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