Characteristiclow thermal capacity,low density, shorter heat up and cool down timeLow thermal conductivity , saving combustion cost in the furnace effectivelyHigh thermal stability ,high resistance to

 Characteristiclow , low thermal capacity, and excellent thermal property.High temperature stability, resistance to thermal shockGood tensile strengthExcellent , and chemical corrosion resistance

Characteristiclow thermal conductivity , low thermal capacityHigh thermal stability ,resistance to thermal shock,flame and airflow attackResistance to corrosion,high compressive strength.High toughnes