2. Silica Bricks

  • It has 19% of silica.
  • The resistance power is up to 2000.
  • It is manufactured from quartzite or sandstone, along with the addition of 2-3% lime in order to act as a flux and bind.
  • Suitable for several things, like furnaces’ acid lining for glass production, copper melting furnace, basic open-hearth steel furnaces’ walls, and arches.

3. Ganister Bricks

  • At a high temperature of upto 2100 degree C, it is very rigid, compact, and hard.
  • Made of various types of ganister rock, which contains silica of 85% and clay of 10%, additionally lime of 2%.