Thermal Insulation Ceramic Fiber Paper High Temp 1430°C Low Conductivity
Product Overview:
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.
Technical data
| Grade |
Standard |
High Pure |
High Aluminium |
Zirconium |
| Max. Temperature (C) |
1050 |
1150 |
1260 |
1430 |
| Shrinkage on Heating (%) |
800C×24h≤-3 |
1000C×24h≤-3 |
1280C×24h≤-3 |
1400C×24h≤-3 |
| Organic Content (%) |
≤5 |
≤5 |
≤5 |
≤5 |
| Thermal conductivity by mean temp. (W/m.k.) (250kg/m3) |
200℃ |
0.055～0.065 |
0.060～0.070 |
| 400℃ |
0.110～0.120 |
0.105～0.125 |
| 600℃ |
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 |
Key Properties & Advantages:
- 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 a low organic content to minimize fume emission.
Diverse Industrial Applications:
- 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.
Engineered for Performance & Safety:
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.
