
Ceramic fiber
Ceramic fiber board
RefraBoard S300 lineRigid thermal insulation for applications that need structure and high performance. Light and with low thermal conductivity, ceramic fiber board withstands up to 1,260 °C while keeping its shape, even under intense heat.
Up to 1,260 °CRigid260–400 kg/m³
What is ceramic fiber board?
It is a rigid thermal insulator made of alumina-silica fibers molded under pressure and heat treated. The result is a solid, strong yet light board with dimensional stability at high temperatures.
Unlike the blanket, the board is used where insulation needs a rigid structure: hot-face linings, partitions, furnace doors and covers.
Key features
- Up to 1,260 °C. Continuous use at high temperatures.
- Low thermal conductivity. Reduces losses and improves efficiency.
- Lightweight. Easy to cut, handle and install.
- Dimensional stability. Does not easily deform under heat.
- Good mechanical strength. Handles moderate loads without breaking.
Applications
Industrial furnacesInternal linings, doors and covers that need rigidity.
Boilers and combustionInsulation of critical areas in firing systems.
Metallurgy and petrochemicalsKilns, tanks and process equipment.
Ovens and grillsPizza and wood-fired ovens and grills.
Technical data
Reference data. For full specifications, talk to our team.
- Continuous use temperature
- Up to 1,260 °C
- Composition
- Alumina-silica fibers
- Densities
- 260 to 400 kg/m³
- Thicknesses
- 12.7, 25 and 50 mm
- Format
- Rigid boards, ready to install
Need ceramic fiber board?
Tell us about the equipment and the operating temperature. We reply within 24 hours.






