KEMOLIT Wollastonite in Ceramic Applications
Wolkem’s KEMOLIT milled Wollastonite grades are ideal reinforcing filler for Ceramic Wall Tiles and Floor Tiles Bodies, Frit Compound, Glazes & Sanitaryware & for Thermal and Electrical Insulators.
Wolkem’s Wollastonite milled grades properties like acicular shape, high melting point, contribute to-
- Improved production rates
- Provides less denting
- Reduces shrinkage
- Reduces surface defects
- Low sintering temperature
- Improves glaze strength
- Improves green strength
- Improves impact and dimensional stability
- Reduces moisture and thermal expansion
- Provides electrical insulating properties
- Improves product quality
- Aid faster drying which in turn result in lowering of energy costs
Calcite in Ceramic Applications
Wolkem’s Calsun /Calstar and Belsun various milled grades of Calcite are used in Ceramic industry for Floor Tile, Sanitary ware, Glaze & Frit, High & Low Tension Insulator applications-
Calcite provides better bonding and green strength in ceramic glazes.
Calcite containing CaO is the principal flux in medium & high temperature glazes. It reduces the viscosity and co-efficient of thermal expansion. It promotes adherence, stability, hardness and toughness to the glaze when used in a proper concentration. Calcite also whitens the glaze to the greater extent by its bleaching action. It is used as source of lime (CaO) in sanitary ware glazes & floor tile glazes
Dolomite in Ceramic Applications:
Wolkem’s Dolomite is used in wall tile body, floor tile body, glazes–
- It helps control shrinkage
- It acts as a source of magnesia.
- In ceramic glazes, it is used as a source of magnesium and calcium.
- Dolomite is the principal source of MgO in high-temperature raw glazes
Recommended Grades
- Dolstar M-2
- DolstarM-3
