High Strength Ceramic Fiber Board Aluminium Silicate Board

1.Refractory lining for industrial furnaces in walls,roofs,doors,stacks,etc.
2.Combustion chamber liners,boilers and heaters
3.Back-up insulation for brick and monolithic refractories
4.Expansion joint boards
5.Barrier against flame or heat
6.Hot face layer for high velocity or abrasive furnace atmosphere

Product Description

Laurel ceramic fiber board is a lightweight refractory material processed with alumina-silica fibers for applications at temperatures up to 1430℃(2600℉)
Ceramic fiber board is a vacuum formed product that resists higher gas velocities than ceramic fiber blanket, it is ideal for furnace, boiler duct and stack lining due to its low thermal conductivity and low heat storage allowing shorter cycle times and quicker access for maintenance


Item Common Standard H Pure H Alumina Zirconium
AL2O3(%) 43 44 47-50 52-55 39-40
Fe2O3(%) 1.2 1 0.2 0.2 0.2
ZrO2(%) 15-19
Classification   Temperature (℃) 1100 1260 1260 1360 1430
Working   Temperature (℃) 1000 1050 1100 1200 1350
Density   (kg/m3) 280-320 280-320 280-320 280-320 280-320
Permanent   linear shrinkage(%)(after24 hours,density 128kg/m3) -4 -3 -3 -3 -3
(1000°C) (1000°C) (1100°C) (1250°C) (1350°C)
Tensile   strength (Mpa) density128kg/m3) 0.08-0.12 0.08-0.12 0.08-0.12 0.08-0.12 0.08-0.12



1.Low thermal conductivity,saves fuel
2.Very low heat storage,faster heat and cool-down reducing cycle times
3.Ligh weight.replaces heavy back-up insulation.less steel required.
4.Excellent thermal shock resistance
5.Resistant to hot gas erosion
6.Resists most chemical attacks
7.Easy to cut, handle and install
8.Low sound transmission
9.Resists penetration by molten aluminum and other non-ferrous metals
10.Contains no asbestos