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2)374
3)592
4)4)751 Air dry clay
5)1100
Sio-2 12,5kg:
1)PRNI negra
2)PA/CHF blanca
Sibelco clay, 10kg:
1)sibelco W5015 raku
Witgert clay, 10kg:
1)witgert 11sf
Porcelain:
1)Audrey Blackman 12,5kg 2)Limoges 25kg
Body 254 is a light to cream-coloured firing stoneware quality with 25 % chamotte 0 – 0.2 mm.
The recommended firing range is 1000 °C – 1280 °C.
The plastic body quality is suitable for building-up smaller pieces and for throwing on the potter’s wheel, where it is also particularly suitable for larger pieces.
Firing colour white-light
Firing range (°C) 1000 - 1280
Chamotte portion (%) 25
Chamotte grain size (mm) 0-0,2
Firing shrinkage:
1070 °C - 3%
1140 °C - 5%
1240 °C - 7%
Water absorption:
1070 °C - 9%
1140 °C - 6%
1240 °C - 0,4%
CTE x 10 -7 °C -1
20 °C - 500 °C (1240 °C)
Black stoneware clay with 40% impalpable grog 0-0.2 mm (up to 80 Mesh). Formulated for artistic ceramics, it is ideal for wheel-throwing and modelling smooth pieces with fine details. The high content of grog confers an excellent behaviour during drying and firing. Its beautiful and intense black firing colour in oxidising 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. Available in extruded body (moist form).
Packaging 12,5 kg.
Firing range: 1200-1240ºC / Cone 5-6
Biscuit temperature: 1000ºC / Cone 06
Water content: 21%
Plasticity (IP Atterberg): 22
Carbonate content (CaCO3): 0%
Drying shrinkage: 7.0%
Firing shrinkage (1240ºC): 7.1%
Porosity (water absorption at 1240ºC): 1.3%
Dry bending strength: 4.6 N/mm2
Fired bending strength (1240ºC): 33.3 N/mm2
White earthenware clay with 20% fine grog 0-0.5 mm (up to 35 Mesh). Ideal for medium size pieces. The presence of grog confers to clay a very interesting textured surface (not flat) which, in turn, provides a set of suitable properties for the design of pieces in complex drying situations, thus avoiding the creation of deformations and cracks. Available in extruded body (moist form), being suitable for shaping and modelling.
Packaging 12,5 kg.
Firing range: 1050-1080ºC/ Cone 05-03
Water content (throwing): 17%
Plasticity (IP Atterberg): 13
Carbonate content (CaCO3): 13%
Drying shrinkage: 5.3%
Firing shrinkage (1050ºC): -0.3%
Porosity (water absorption at 1050ºC): 11.2%
Dry bending strength: 3.7 N/mm2
Fired bending strength (1050ºC): 26.8 N/mm2
Stoneware S. Burning temperature: 1000°C - 1140°C. Color after firing: brown-black. Ready-to-use evacuated mass, suitable for the potter's wheel, hand modeling.
Technical data of Sibelco S:
Loss on ignition: 6.5%Ka
Mass fraction of moisture: 22.5%
Drying shrinkage: 7.8%
Shrinkage during firing: 5.8%
Water absorption: 1100°C - 1.0%
Packaging: 10 kg
Ceramic body Stoneware RAKU 5015. Chamotte content 50%, chamotte fraction 0-1.5 mm. Burning temperature: 1000°C - 1280°C. Color after firing: light cream, light grey. Ready-to-use, vacuum-packed mass developed for Raku firings, suitable for molding and hand-sculpting.
Technical data of Sibelco RAKU 5015 stone mass:
Loss on ignition: 3.8%
Mass fraction of moisture: 16.0%
Drying shrinkage: 4.5%
Firing shrinkage: 3.5%
Water absorption: 1200°C - 3.5%
Packaging: 10 kg
Witgert 11sf 0-0.5 - white, fine-chamotte plastic ceramic body produced by Witgert Germany. Suitable for hand sculpting, potter's wheel, sculpture. The mass contains kaolin additives.
Color: white-light gray
Drying shrinkage: 6.2%
Firing shrinkage (1200°C): 6.1%
Water absorption (1200°C): 2.8%
Fireclay content: 25%
Fireclay size: 0 - 0.5 mm.
Sintering temperature: 1220°C
Firing range: 1000–1300 ºC
Packaging: 10 kg
