Share this page by mail RTC-60 fine alumina mouldable ceramic
RTC-60 fine is a pure alumina based powder Al2O3. It can withstand temperatures up to 1790 °C.
It can be mixed with demineralised water. The mixture results in a moulding paste which must be shaped and dried.
This paste can be poured onto all non-absorbent materials. The moulds should have sufficient vents to allow proper casting.
RTC-60 is available in different grain sizes and in 2.3 L, 12 L and 23 L.
For larger sizes, please contact us. We offer other moulding ceramics with unlimited applications at high temperatures.
- Resistance to redox
- Resistance to molten metals
- Ceramic moulding cement
- Tmax 1790 °C
A castable ceramic cement has low viscosity, enabling casting or pouring in moulds of complex shapes. It is formulated to limit segregation, to ensure effective dimensional reproducibility, and to produce a ceramic part. Potting cement is used to encapsulate or fix components in an assembly.
At Final Advanced Materials castable cements are optimised for the manufacture of parts (final density 2.0–3.0 g/cm³), while potting cements are designed to prioritise adhesion in assemblies (housings, resistor overmoulding, etc.).
For foundry moulds Final Advanced Materials produces alumina, silicon carbide, silica or zirconia-based cements, which are suited for temperatures between 1,200 and 2,200°C. Zirconia formulations are particularly suitable if a very high resistance to chemicals is required. Alumina cements have better mechanical resistance (>40 MPa in compression). SiC cement is a very good option for molten metal casting, launders, crucibles or nozzles. The choice depends on the cast metal and the temperature (e.g.: aluminium ~700°C, steel >1,500°C) and the thermal shock resistance.
The ceramic casting cements produced by Final Advanced Materials have standard compression resistances of 10 to 40 MPa, depending on the formulation and porosity. Thermal shrinkage is generally low, reducing internal stresses and cracking. Dense alumina-based formulations offer the best mechanical performance, while more insulating systems have a lower resistance, but reduced thermal conductivity (<0.15 W/m·K).