High Temperature Ceramic Fiber Paper 2–6mm For Furnace Sealing
Leadsun ceramic fiber paper is produced from high-purity alumina-silica fibers and processed into a flexible, lightweight refractory sheet. The material exhibits low thermal conductivity, low shrinkage, and excellent workability. A controlled amount of organic binder improves flexibility while reducing off-gassing and odor during operation. Uniform thickness and density ensure homogeneous thermal performance and a smooth surface, making it ideal for sealing and gasket applications.
Technical data
| Type |
Standard ceramic fiber paper |
High pure ceramic fiber paper |
High Aluminium ceramic fiber paper |
Zirconium ceramic fiber paper |
| Chemical analysis (%) |
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+K2O |
≤0.5 |
≤0.3 |
≤0.3 |
≤0.2 |
| Crganic Content (%) |
5% |
≤5% |
≤5% |
≤5% |
| Density(kg/m3) |
180-220 |
180-220 |
180-220 |
180-220 |
| Work Temperature |
1050 |
1150 |
1250 |
1350 |
| Thickness |
0.5-12mm |
| size (mm) |
can custom |
Features
- Easy to wrap, shape, or cut, allowing flexible fabrication and installation
- Lightweight insulation material, easy to handle and install
- Low thermal conductivity and low heat storage, reducing heat loss and improving energy efficiency
- Uniform structure with a smooth surface appearance, ensuring consistent performance
- Excellent flexibility, toughness, and resistance to tearing or delamination
- Good dielectric strength and sound insulation properties
- Outstanding thermal shock resistance, maintaining integrity under rapid temperature changes
- Excellent chemical stability and machinability, suitable for precision processing
- High resistance to corrosion, ensuring long service life in harsh environments
Applications
- Die-cut gasket materials used between castings in:
- Coke oven doors
- Blast furnace hot air piping
- Aluminum heat treatment furnaces
- Tuyeres and heat treatment furnaces
- Backup insulation for brick and monolithic refractory linings in:
- Blast furnace stoves
- Industrial piping systems
- Tundishes and ladles
- Hot metal cars and troughs



