Ceramic Fiber Board
High Density 2300F


High density ceramic fiber boards provide a rigid solution for high-temperature applications. High density boards are recommended when drilling, machining, or rigidizing in comparison to low density. Low density boards are slightly more insulating but do not have the same durability as high density.

Shipping Information

Boards are sold per carton and palletized to ship Less Than Truckload (LTL Freight) or via UPS in specially packaged cartons to ensure safe delivery. LTL is recommended for larger orders, and UPS for smaller orders. Please contact us directly for a custom LTL shipping quote or place your order and a CeraMaterials’ representative will contact you to confirm shipping cost before processing your order.

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Temperature Rating: 2300℉

Grade: High Density

Density: 22-25lbs/ft³

Product Documentation


  • High temperature stability
  • Excellent strength and hardness
  • Low thermal conductivity, sound transmission, and heat storage
  • Uniform density and excellent resistance to thermal shock and chemical attack
  • Excellent rigidity and modulus of rupture make the boards strong and self-supporting, yet relatively lightweight and easy to cut or machine
  • Resistant to oxidation and reduction
  • Permits fast thermal cycling without cracking or spalling
  • Resists penetration by molten aluminum and other non-ferrous metals


  • Insulating support to brick and castable
  • Furnace hot face lining
  • Industrial heat process equipment insulation
  • High temperature gasket and seals
  • Flue & chimney linings in furnaces or kilns
  • Molten metal trough covers
  • Expansion joints
  • Industrial heat shields and thermal barriers
  • Industrial combustion chamber construction
  • Infra red element supports
  • Board over blanket hot face lining
  • Full thickness refractory lining
  • High temperature boiler wall insulation
  • Pouring forms for castable
  • Refractory lining for industrial furnace walls, roofs, doors, and stacks
  • Well suited for applications experiencing vibration, mechanical stress, and strong erosive forces
  • Combustion chamber liners, boilers and heaters
  • Back-up insulation for brick and monolithic refractories
  • Transfer of molten aluminum and other non-ferrous metals
  • Barrier against flame or heat
  • Hot face layer for high velocity or abrasive furnace atmosphere


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