High Temperature Ceramic Fiber Paper 1050°C-1430°C with Al2O3+SiO2 Composition and 0.5mm to 5mm Thickness for Gasket Sealing and Insulation
Engineered for precision and reliability, our Ceramic Fiber Paper is a versatile, lightweight refractory sheet produced from a uniform blend of high-purity alumina-silica fibers. With a controlled, smooth surface and consistent thickness, it delivers predictable thermal and electrical insulation performance. Formulated with a minimal organic binder for flexibility during installation and low off-gassing during use, it serves as a high-performance, cost-effective, and safe asbestos-free replacement across numerous industrial applications.
| Grade | Standard | High Pure | High Aluminium | Zirconium |
|---|---|---|---|---|
| Max. Temperature (°C) | 1050 | 1150 | 1260 | 1430 |
| Shrinkage on Heating (%) | 800°C*24h≤-3 | 1000°C*24h≤-3 | 1280°C*24h≤-3 | 1400°C*24h≤-3 |
| Organic Content (%) | ≤5 | ≤5 | ≤5 | ≤5 |
| Thermal Conductivity by Mean Temp. (W/m·k) (250kg/m³) | ||||
| 200°C | 0.055～0.065 | 0.060～0.070 | ||
| 400°C | 0.110～0.120 | 0.105～0.125 | ||
| 600°C | 0.160～0.170 | 0.170～0.180 | ||
| Chemical Composition (%) | ||||
| AL₂O₃ | 43 | 47 | 55 | 38 |
| SiO₂ | 53 | 51 | 44 | 44 |
| Fe₂O₃ + Ti₂O₃ | ≤1.2 | ≤0.3 | ≤0.3 | ≤0.2 |
| CaO + MgO | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.2 |
| NaO + KO₂ | ≤0.5 | ≤0.3 | ≤0.3 | ≤0.2 |
| Density (kg/m³) | 170~230 | |||
- Exceptional Handling & Machinability - Easily cut, wrapped, or die-cut into complex gaskets and shapes without fraying, thanks to its good flexibility and tensile strength.
- Superior Thermal Management - Offers very low thermal conductivity and low heat storage, providing efficient insulation and rapid thermal cycling capability.
- High-Temperature Integrity - Maintains excellent dimensional stability and chemical resistance under continuous exposure, with grades suitable for up to 1430°C.
- Electrical & Acoustical Insulation - Provides good dielectric strength and sound absorption properties for multi-functional use.
- Safe & Compliant - Completely free of asbestos and designed with low organic content to minimize fume emission.
- Gasketing & Sealing - Die-cut gaskets for coke oven doors, blast furnace hot air systems, aluminum furnaces, and heat treat equipment
- Backup Insulation & Wrap - Layer behind brickwork, insulation wrap for tundishes, ladles, hot metal cars, and SEN (Submerged Entry Nozzle) insulation
- Thermal Barriers & Protection - Heat shield for welding/brazing, mould wrap for controlled cooling, expansion joint packing
- Specialized Liners & Components - Induction coil liner, mould liner, silencer interleaf, hot top linings, and as a direct asbestos paper replacement
More than just paper, this is a precision-engineered thermal management material. Its uniform structure ensures consistent performance, while its asbestos-free composition and low fume profile address modern safety and environmental standards, making it the responsible choice for upgrading legacy installations.
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