// SPEC · Ceramic Fiber
Mullite Alumina Bulk Fiber Al2O3 72% High-Temperature Insulation
Al2O3 72% mullite bulk alumina fiber for 1400°C insulation; excellent thermal shock resistance and low bulk density for furnace gap filling, ceramic kiln module backing, and high-temperature pipe sealing.
// Key Features
- Loose bulk form allowing precise packing density control in irregular cavities and joints
- Excellent thermal shock resistance due to low thermal mass and flexible fiber arrangement
- Stable mullite phase providing consistent high-temperature insulation performance over time
- Easy on-site handling and application requiring no special tooling or installation equipment
// Technical Specifications
| Al2O3 (%) | 72 |
| Melting Point (°C) | 1830 |
| Fiber Diameter (μm) | 2–4 |
| Max Service Temp (°C) | 1400 |
| Tensile Strength (MPa) | 0.7 |
// Applications
Industrial furnace expansion joint and structural gap infillingCeramic fiber module interstitial backing and void fillingRefractory lining repair and spall void reinstatement packingHigh-temperature piping and valve insulation wrapping and stuffingContinuous annealing furnace conveyor roll insulation packing
// Quick Specs
Max Temperature1400°C
Thermal Conductivity0.11 W/(m·K) at 600°C
Density40–80 kg/m³
StandardGB/T 17393
// Get Pricing
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