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BLACK STONEWARE CLAY 28 LB. BOXES
BLACK STONEWARE CLAY 28 LB. BOXES
$37.95
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Black Stoneware Clay with Impalpable Grog
Black stoneware clay body with 40% impalpable grog (up to 80 Mesh). Formulated for
artistic ceramics, it is ideal for wheel-throwing and modeling smooth pieces with fine
details. The high content of grog confers an excellent behavior during drying and firing.
Its beautiful and intense black firing color in oxidizing atmosphere is very exclusive of
PRN range and becomes an ideal artistic mean of expression. In reducing atmosphere,
metallic effects with shades of blue are obtained. Suitable for tableware (food-safe),
according to ISO 6486.
Firing range: Cone 5-6 (2205o-2269oF)
Biscuit: Cone 06 (1855oF)
Water content: 21%
Plasticity (IP Atterberg): 22
Carbonate content (CaCO3): 0%
Drying shrinkage: 7.0%
Firing shrinkage at Cone 6: 7.1%
Porosity (water absorption) at Cone 6: 1.3%
Dry bending strength: 4.6 N/mm2
Fired bending strength at Cone 6: 33.3 N/mm2
Thermal coefficient (a25-500oC): 51.1x10-7oC-1
___________________________________________________________________________
Arcilla de gres negra con Grog impalpable
Cuerpo de barro gres negro con un 40% de grog impalpable (hasta 80 Mesh). Formulado para
cerámica artística, es ideal para lanzar ruedas y modelar piezas lisas con finos
detalles. El alto contenido de grog le confiere un excelente comportamiento durante el secado y la cocción.
Su bello e intenso color negro de cocción en atmósfera oxidante es muy exclusivo de
Gama PRN y se convierte en un medio artístico de expresión ideal. En atmósfera reductora,
Se obtienen efectos metalizados con matices de azul. Apto para vajilla (apto para alimentos),
según ISO 6486.
Rango de disparo: Cono 5-6 (2205o-2269oF)
Galleta: Cono 06 (1855oF)
Contenido de agua: 21%
Plasticidad (IP Atterberg): 22
Contenido de carbonato (CaCO3): 0%
Contracción por secado: 7.0%
Contracción de cocción en el cono 6: 7,1%
Porosidad (absorción de agua) en el cono 6: 1,3%
Resistencia a la flexión en seco: 4,6 N / mm2
Resistencia a la flexión al fuego en el Cono 6: 33,3 N / mm2
Coeficiente térmico (a25-500oC): 51,1x10-7oC-1
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