Product Details

A ceramic fibre board is a stiff, flat sheet made from ceramic fibres pressed together with a binder (a glue that holds the fibres). It insulates like a ceramic blanket but keeps its shape, so it can stand as a wall, carry a light load or face hot gas moving past it.

Main features

Stiff and flat. Boards keep their shape, so they make neat walls, roofs and doors.
Low weight. Much lighter than firebrick, so the furnace heats faster and uses less energy.
Low heat loss. The fibres trap air, which slows the flow of heat.
Easy to work with. Boards can be cut with a knife or saw and drilled on site.
Good against thermal shock. They handle fast heating and cooling without cracking.

Temperature grades

Ceramic fibre products are sold by classification temperature (the highest temperature the material can take for a short time). Common grades are about 1,260 °C and 1,430 °C. For long use, choose a grade well above your real working temperature, usually 100–150 °C higher.

Typical sizes

Boards are usually made in sheets around 1,000 × 500 mm or 1,200 × 1,000 mm, with thicknesses from 10 to 50 mm. Other sizes and shapes cut to drawing are possible.

Where they are used

Hot-face and back-up linings of furnaces and kilns
Furnace doors and roofs
Heat shields and fire barriers
Linings for flues, ducts and burners
Expansion joints and seals

Tips for use

Some boards contain an organic binder that burns off the first time they are heated. A little smoke and smell is normal on the first firing.
Wear gloves, long sleeves and a dust mask when cutting fibre products.
Protect the board from water and from being hit or rubbed by the load.