Non-asbestos high density calcium silicate board produced using Dynamic Method thin-fiber xonotlite (CaO·SiO₂·H₂O). Very high strength, nearly no thermal shrinkage, excellent resistance to thermal shock. Widely used for machine parts, moulds and demanding industrial insulation.
The main high-density calcium silicate materials on the market are made of xonotlite with molecular structure CaO·SiO₂·5H₂O. Our factory uses a Dynamic Method to produce thin-fiber xonotlite with the structure CaO·SiO₂·H₂O.
The newly invented material has lower thermal conductivity, higher service temperature, and is durable for a longer service life compared to conventional high-density calcium silicate products.
Widely used in different industries, formed into various shapes as machine parts or moulds for demanding high-temperature applications.
Standard Size: 1230 × 1230 mm thickness 6-160mm; 1250 × 2500 mm thickness 10-80mm; 1200 × 600 mm thickness 10–160 mm (custom sizes and shaped products available)
Non-asbestos high density calcium silicate thermal insulation 800kg/m³ — manufactured by HR RHINO
Non-Asbestos High Density High Temperature Calcium Silicate Board, density: 800 kg/m³
| SiO₂ | % | 50 Min |
| CaO | % | 35 Min |
| Al₂O₃ | % | 1 Max |
| Fe₂O₃ | % | 0.5 Max |
| Loss on Ignition | % | 7 Max |
| Bulk Density | kg/m³ | 800 (±10%) |
| Compressive Strength | MPa | ≥ 11 |
| Flexural Strength | MPa | ≥ 5.5 |
| Surface Hardness | HD | 60 |
| Continuous Service Temp | °C | ≤ 1000 |
| Max Service Temperature | °C | 1050 |
| Linear Thermal Shrinkage | % | ≤ 0.3 (900°C, 12h) |
| Thermal Conductivity (20°C) | W/m·K | ≤ 0.14 |
| Thermal Conductivity (200°C) | W/m·K | ≤ 0.16 |
| Thermal Conductivity (400°C) | W/m·K | ≤ 0.19 |
| Thermal Conductivity (600°C) | W/m·K | ≤ 0.21 |
| Coefficient of Thermal Expansion | K⁻¹ | 6×10⁻⁶ |
| Non-flammable Grade | A1 Class Fire-Proof |
| Length mm (±2mm) | Width mm (±2mm) | Thickness mm (±2mm) |
| 1230 | 1230 | 6–160 |
| 1250 | 2500 | 10–80 |
| 1200 | 600 | 6–160 |
