Product Description：
Insulation ceramic fiber paper is a lightweight refractory material processed from a blend of high purity alumina-silica fibres into a highly flexible, uniform sheet. It is recommended for classification temperatures up to 1430C. made of a bulk ceramic fibre and organic binder. It is necessary for gaskets to be used in high temperatures due to their excellent workability and ductility.
Features Of Ceramic Fiber Paper：
- Low thermal capacity
- Low thermal conductivity
- Excellent eletrical insulation properties
- Excellent machining performance
- High strength,tear resistance
- High flexibility
Applications Of Ceramic Fiber Paper：
- Asbestos paper replacement
- Investment cast wrap insulation
- One time consumable insulating applications
- Back up lining for metal troughs
- Hot top lining
- Thermal and electrical insulation
Specifications Of Ceramic Fiber Paper：
- Alumina contents range from 40% to 45%
- Widely used throughout metallurgical industry
| Item | Standard Grade | High-Purity Grade | High-Alumina Grade |
|---|---|---|---|
| Classification Temperature (°C) | 1260°C | 1260°C | 1360°C |
| Working Temperature (°C) | ＜1050°C | ＜1100°C | ＜1200°C |
| Color | Pure White | Pure White | Pure White |
| Bulk Density (kg/m³) | 260–320 | 260–320 | 260–320 |
| Linear Shrinkage (%) | -3 (1000°C) | -3 (1100°C) | -3 (1200°C) |
| Thermal Conductivity (w/m·k) (at 128 kg/m³ density) | |||
| 400°C | 0.085 | 0.085 | 0.132 |
| 800°C | 0.132 | 0.132 | 0.132 |
| 1000°C | 0.180 | 0.180 | 0.180 |
| Tensile Strength (MPa) (at 128 kg/m³) | ≥21 | ≥21 | ≥21 |
| Chemical Composition (%) | |||
| Al₂O₃ | 46 | 47–49 | 52–55 |
| Al₂O₃ + SiO₂ | 97 | 99 | 99 |
| Al₂O₃ + SiO₂ + ZrO₂ | – | – | – |
| ZrO₂ | – | – | – |
| Fe₂O₃ | ≤1.0 | ≤0.2 | 0.2 |
| Na₂O + K₂O | ≤0.5 | 0.2 | 0.2 |
| Product Size (mm) | Common sizes: 600×400×10–50; 900×600×20–50; other sizes can be customized according to user requirements. |