Ceramic Fiber Blanket – Flexible, High-Temperature Insulation for Demanding Industrial Applications
Product Overview:
Our Ceramic Fiber Blanket is composed of long, flexible, interwoven fibers manufactured by the “blown” and “spun” process. It yields a strong, lightweight, and durable blanket designed for continuous service in a temperature range from 1100°C to 1430°C, depending on the grade. It combines the heat resistance of a hard refractory with a thermal insulation value five times better, making it an ideal solution for energy saving and thermal management.
Technical Index
| Description |
STD Blanket |
High Pure Blanket |
High zirconium Blanket |
| AL2O3(%) |
≥44 |
≥45 |
≥34 |
| AL2O3+SiO2 (%) |
≥96 |
≥99 |
≥84 |
| Fe2O3+TiO2(%) |
≤1.0 |
≤0.5 |
≤0.5 |
| ZrO2 (%) |
- |
- |
≥15 |
| K2O+Na2O(%) |
≤1.0 |
≤0.2 |
≤0.2 |
| Density (kg/m3) |
64 |
96 |
128 |
96 |
128 |
128 |
160 |
Classification Temperature (℃) |
1260 |
1260 |
1430 |
| Fiber Diameter(um) |
3.5 |
3.5 |
3.5 |
| Shot Content(%) |
≤15 |
≤15 |
≤15 |
| Shrinkage after Heating (%) |
1000C *24h≤2.5 |
1100C *24h≤2.5 |
1350C *24h≤3.5 |
| Thermal Conductivity(W/m·k) |
| 400℃ |
0.090 |
0.095 |
0.124 |
0.114 |
0.101 |
0.138 |
0.122 |
0.118 |
| 500℃ |
0.119 |
0.123 |
0.145 |
0.135 |
0.120 |
0.179 |
0.153 |
0.149 |
| 600℃ |
0.152 |
0.158 |
0.202 |
0.191 |
0.175 |
0.233 |
0.184 |
0.172 |
| Tensile Strength(Mpa) |
0.040 |
0.05 |
0.05 |
0.060 |
0.075 |
0.050 |
0.060 |
0.075 |
Key Features:
- Low Thermal Conductivity: Excellent insulation properties reduce heat loss.
- Very Low Heat Storage: Enables rapid heating and cooling cycles.
- High Tensile Strength: Durable and resistant to tearing during handling and installation.
- Excellent Thermal Shock Resistance: Performs reliably under rapid temperature changes.
- No Binder, Safe: Contains no binders, producing no fumes or furnace atmosphere contamination. It is asbestos-free.
- Quick Installation & Repair: Requires no curing or dry-out time; can be fired to operating temperature immediately. Damaged linings can be cooled and repaired quickly.
Applications:
- Ceramic Industry: Kiln car insulation and seals, continuous and batch kilns.
- Steel Industry: Heat treating/annealing furnaces, furnace door linings, soaking pit covers, ladle covers, hot face repairs.
- Refining & Petrochemical: Reformer and pyrolysis lining, tube seals/gaskets, high-temperature pipe/duct insulation.
- General: Back-up insulation, expansion joints, and areas requiring sound absorption.



