Calcium Silicate Insulation Board

Calcium silicate board is a lightweight thermal insulation product that is heat-resistant and fireproof. This product is mainly made of silicon, calcium, and reinforcing fiber materials. And it is an asbestos-free insulation product. This material can be used in harsh high-temperature environments of 1000ºC.

  • Thickness: 10-115mm;
  • L*W: 1250*1250, 1000*1000, 1220*900mm;
  • Maximum Use Temperature: 1000ºC;
  • Bulk Density ≥/(kg/m³): 230±10%;
  • Modules of Rupture ≥/MPa: 0.45-0.55;
  • Compressive Strength ≥/MPa: 0.75 -0.95;
  • Stock: Large Quantity in stock;
  • Shipping: 7-15 working days;
  • Certifications: ISO9001/ISO14001/ISO45001/ISO50001;
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Calcium Silicate Board - Kerui Refractory

Parameters of Calcium Silicate Board

ItemCalcium Silicate Insulation Board
Maximum Use Temperature/℃1000
Chemical Compositionω (SiO2)/%46-48
ω (CaO)/%39-41
ω (Al2O3)/%0.39-0.42
ω (MgO)/%0.5-0.7
Bulk Density (kg/m³)230±10%250±10%270±10%
Modules of Rupture ≥/MPa0.450.50.55
Compressive Strength ≥/MPa0.750.850.95
Permanent Linear Change/%1000℃*16h ≤ 2.0
Thermal Conductivity Coefficient ≤/[W/(m·K)]100℃0.0650.0670.072

Calcium Silicate Insulation Board

Introduction of Cal-Sil Board

Kerui calcium silicate board is a new type of thermal insulation material. Its main raw materials are high-quality silica and calcium materials. These raw materials are converted into calcium carbonate boards after hydrothermal treatment. This material is fire-resistant, lightweight, versatile, and easy to construct. It represents a new breakthrough in the application of thermal insulation materials. Kerui calcium silicate board brings better results and performance to the application of the high-temperature thermal insulation industry.

Calcium Silicate Boards

Calcium silicate panels are a type of refractory boards. Compared with ceramic fiber insulation board, it has the following main advantages:

  • Excellent fire resistance;
  • Good thermal shock resistance;
  • Excellent thermal insulation and heat preservation effect;
  • Low thermal conductivity (0.065-0.138W/(m·K)) among 100-600ºC;
  • Low density (230-270±10%kg/m³);
  • Good sound absorption capacity;
  • Strong resistance to chemical erosion;
  • Good mechanical properties;
  • Excellent electrical insulation performance;
  • Good machinability.

Applications of Kerui Calcium Silicate Boards

  • High-temperature kilns: Lining (steelmaking furnace, electric furnace, heat treatment furnace, chemical reaction kettle, boiler, ceramic furnace, cement furnace, etc.).
  • Building fire protection: Building walls, roofs, partitions, firewalls, fire doors, fire shutters, etc.
  • High-temperature pipelines: High-temperature steam pipelines, hot air pipelines, oil refining pipelines, hot oil pipelines, insulation pipelines, etc.
  • Other applications: It can also be used in aerospace, home appliances and other fields.

Calcium Silicate Ceramic Board
Calcium Silicate Board