“Hocreboard” high temperature calcium silicate insulation board products are a new style white and hard high temperature thermal insulation material, which has the characteristics of low bulk density, high strength and low thermal conductivity. It can bear high temperature and corrosion. Our products are widely used in industries like heat supply network of city construction, metallurgy, petroleum, chemical, electronics, machinery and glass.


High Temperature Calcium silicate board is an asbestos-free thermal insulation product that can withstand continuous operating temperature from650℃up to1100℃. It is light weight, low thermal conductivity, high strength, easy to install, reliable and durable. There are 2 grades available namely 650 &1000 & 1100 which are commonly used as furnace backup insulation in steel, petrochemical, ceramic, cement & glass industry or fire protection in building construction. It not only provides energy saving, also increases production efficiency and gives personnel protection in industrial safety aspect. And in the housing construction Calcium Silicate Board is also used as the ceiling, fireproof and heat insulation materials of wall and sound absorption materials of decoration.


Temperature limitation:  1000 ºC
Density:  200- 300kg/m3
size:  1000x500mm, 500x500mm, 600(610)x300mm, 1220x1220mm, 1080x950mm.
Thickness:  25 – 120 mm


Technical Data:

Physical  Property Unit         Typical  value
HCS-23 HCS-27
Bulk  Density  (dry) kg  /  m3 230  (±10%  ) 270(±10%  )
Flexural  Strength MPa ≥ 0.50 ≥ 0.60
Thermal  Conductivity W  /  m. k ≤ 0.056+0.00011t ≤ 0.058+0.00011t
Service  Temperature
(max. )
ºC 1000
Linear  Shrinkage % ≤ 2        (1000 , 16hrs)


Reheating furnace -Annealing furnace-Transfer ladle -Rotary kiln-Glass tank Dip tubes and spouts Nozzles -Shuttle kiln -Tunnel kiln -Aluminum melting and holding furnace- Distribution boxes, Flow gates – Hot pipe supports-Other high temperature ovens or heat processing equipment.