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: 20-115mm;
- 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;

Parameters of Calcium Silicate Board
We provide three types of board, including ordinary board, high-density board (above 800 body density) and shell and tube calcium silicate board (common shell and tube insulation). The following product parameters are ordinary calcium silicate board. If you need the product parameters of the other two types, please contact us.
Item | Calcium Silicate Insulation Board | |||
---|---|---|---|---|
Maximum Use Temperature/℃ | 1000 | |||
Chemical Composition | ω (SiO2)/% | 46-48 | ||
ω (CaO)/% | 39-41 | |||
ω (Al2O3)/% | 0.39-0.42 | |||
ω (MgO)/% | 0.5-0.7 | |||
Color | White | |||
Bulk Density (kg/m³) | 230±10% | 250±10% | 270±10% | |
Modules of Rupture ≥/MPa | 0.45 | 0.5 | 0.55 | |
Compressive Strength ≥/MPa | 0.75 | 0.85 | 0.95 | |
Permanent Linear Change/% | 1000℃*16h ≤ 2.0 | |||
Thermal Conductivity Coefficient ≤/[W/(m·K)] | 100℃ | 0.065 | 0.067 | 0.072 |
200℃ | 0.075 | 0.077 | 0.082 | |
400℃ | 0.091 | 0.096 | 0.103 | |
600℃ | 0.132 | 0.136 | 0.138 |
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.
Advantages of Kerui Calcium Silicon Board
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. Find some applications on YouTube.

