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Ceramitalc No. 1 and 10A are recommended for use in all ceramic applications where fine ground talc will develop higher firing strength than coarser grades. Ceramitalc is used as an auxilliary flux in electrical porcelain, hotel china, and sanitaryware bodies to lower maturing temperatures without narrowing the firing range. In semiviteous dinnerware, a decrease of the moisture expansion and in increase is thermal expansion contribute to improved resistance to crazing in glazed ware.
Nytal 99 and Ceramitalc HDT are outstanding pressing grades of talc for use in ceramic wall tile and artware. Both products develop high uniform thermal expansion and low moisture expansion to prevent crazing in bodies that can be safely fired at rapid cycles. Nytal 99 produces bodies with somewhat lower shrinkage than Ceramictalc HDT, otherwise they are similar.
Nytal 100 is used as an auxilliary flux in vitreous bodies such as electrical porcelain and sanitaryware. It can be substituted directly for feldspar; up to 3% results in a tighter and stronger body if fired to the same temperature, or maturing temperatures may be reduced. Nytal 100 is recommended for cordierite development in refractory specialties, and to impart strength and resistance to delayed crazing in semivitreous dinnerware. Nytal 100HR and Ceramitalc 10AC have special use in art pottery and hobby casting slips. All three grades perform well in dry pressing, ram-pressing and in the making of good casting slips.
Ceramitalc 10AC and Nytal 100HR are controlled for specific resistance, keeping the soluble salts under tight control. These low soluble salts enable users to produce high talc casting bodies, without difficulties in slip rheology.
40 microns 64%
Typical Density at 25C, Mg/m3: 2.85
Average Particle Size: 32 microns
Fired Color: (Hunterlab Meter) 97
Out Bound Links
Magnesium Silicate, Steatite, French Chalk, Hydrated talc