Density 300 kg/m³ · Standard Industrial Grade
The default choice for general furnace and kiln linings — a non-asbestos calcium silicate board that balances light weight with ≥1.5 MPa strength for everyday industrial duty.
Why 300 kg/m³
Suitable For
Technical Data
| Property | Value (Metric) | Value (US) |
|---|---|---|
| Density | 300 kg/m³ ±10% | 18.7 lb/ft³ |
| Max Service Temperature | 1050°C | 1922°F |
| Continuous Service Temperature | 950°C | 1742°F |
| Compressive Strength | ≥ 1.5 MPa | ≥ 218 psi |
| Flexural Strength | ≥ 0.8 MPa | ≥ 116 psi |
| Thermal Conductivity @ 200°C | ≤ 0.082 W/m·K | ≤ 0.57 BTU·in/hr·ft²·°F |
| Thermal Conductivity @ 400°C | ≤ 0.108 W/m·K | ≤ 0.75 BTU·in/hr·ft²·°F |
| Thermal Conductivity @ 800°C | ≤ 0.170 W/m·K | ≤ 1.18 BTU·in/hr·ft²·°F |
| Reaction to Fire | A1 non-combustible | Non-asbestos |
Density tolerance ±10%. Continuous service 950°C (1742°F); 1050°C (1922°F) is peak. Non-asbestos, A1 non-combustible.
| Component | Unit | Value |
|---|---|---|
| SiO₂ | % | 52 Min |
| CaO | % | 40 Min |
| Al₂O₃ | % | 0.3 Max |
| Fe₂O₃ | % | 1.0 Max |
| Loss on Ignition | % | 7 Max |
| Length × Width | Thickness |
|---|---|
| 1220×1220 · 1210×1210 | 20–100 |
| 1230×1000 · 1230×500 | 20–100 |
| 1260×600 · 1000×500 | 20–100 |
Lower-density grade starts at 20 mm. Custom sizes on request.
Format
Supplied as flat rigid sheets, machinable to custom dimensions and shapes. Thickness 20–100 mm (0.8–3.9 in).
Applications
Standard lining and back-up insulation for batch and continuous furnaces.
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Safety back-up layer behind refractory in ladles and tundishes.
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Hot-zone back-up lining for preheaters and kiln hoods.
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Heat containment and casing insulation in boiler systems.
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Installation Guide
Survey the surface and plan board layout and joints.
Cut to size with a saw or blade; CNC for shapes.
Fix with studs, clips or high-temperature adhesive.
Stagger joints and seal gaps with jointing compound.
Ramp temperature gradually on first heat-up to drive off residual moisture before full service.
FAQ
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