Calcium Silicate Board | Cheapest Rate | North Refractories Co. Ltd.

Calcium Silicate Board (calsil board)

High Grade Calcium Silicate Board 650-1000°C for Industrial Applications

Non-asbestos micro porous 650-1000°C Calcium silicate Insulation Board  is  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 Calcium Silicate Insulation products are widely used in industries like heat supply network of city construction, metallurgy, petroleum, chemical, electronics, machinery and glass.

Our Calcium silicate board is an asbestos-free thermal insulation product that can withstand continuous operating temperature from 650℃up to 1100℃. 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.

Calcium Silicate Board Typical Application

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 equipments

General Specification: 1000 C    
1000 mm x 500mm x  25-100mm ( Thickness)    600mm x 300mm x 25-100mm ( Thickness )
Speicial deimension will be as per customer request


  • Asbestos Free
  • Fibre Free
  • No known Health Hazards
  • Low Thermal Conductivity
  • Lightweight
  • Easy to work and handle


Data sheet of Calcium Silicate Board


Bulk Density kg/m3(typical )    250
Flexural Strength MPa 0.35
Cold compressive Strength at 5% deformation MPA  0.70
Liner shrinkage %  2.00
Thermal Conductivity(average temp 70℃ w/m.k  0.058
Service Temp(Max)    1000℃