Kerui ceramic fiber insulation board is formed by wet vacuum filtration and pressure forming. We use high-quality ceramic fiber loose wool as raw materials. Moreover, we sell directly from the manufacturer to the buyer, eliminating the intermediate price difference. Therefore, Kerui’s ceramic fire board is more affordable.

Technical Indicators of Ceramic Fiber Thermal Insulation Board
Item | Ordinary Type | Standard Type | High Purity Type | High Alumina Type | Zirconium Containing Type |
---|---|---|---|---|---|
Classification Temperature, ℃ | 1100 | 1260 | 1260 | 1360 | 1430 |
Working Temperature, ℃ | <1000 | 1050 | 1100 | 1200 | 1350 |
Bulk & Density, kg/m³ | 260-320 | ||||
Permanent Liner Change, % | -4 (1000℃) | -3 (1000℃) | -3 (1000℃) | -3 (1250℃) | -3 (1350℃) |
Heat Conductivity Coefficient, W/(m·k) (Bulk Density 128kg/m³) | 0.09 (400℃), 0.176 (800℃), 0.22 (1000℃) | ||||
Strength of Extension, Mpa | 0.5 | ||||
Al2O3, % | 44 | 46 | 46~49 | 52~55 | 39~40 |
Al2O3+SiO2, % | 96 | 97 | 99 | 99 | - |
Al2O3+SiO2+ZrO2, % | - | - | - | - | 99 |
ZrO2, % | - | - | - | - | 15~17 |
Fe2O3, % | <1.2 | <1.0 | 0.2 | 0.2 | 0.2 |
Na2O+K2O, % | ≤0.5 | ≤0.5 | 0.2 | 0.2 | 0.2 |
Size, mm | Length, Width Regular Size, Thickness 3-100mm, Customized Size |


Unique Advantages of Ceramic Fiber Insulation Board
The refractory ceramic fiber board of Kerui is made by washing, and removing slag and impurities from the ceramic fiber bulk. Then, organic and inorganic binders are added, pressurized and molded. Finally, dehydration, drying and polishing are finely processed. Therefore, the high temperature ceramic fiber board we produce has excellent performance. Contact us to choose the high temp ceramic fiber board type that suits your kiln!
- Low heat capacity, low ceramic fiber board thermal conductivity;
- Excellent thermal stability and thermal shock resistance;
- Good spalling resistance;
- Non-brittle material, good elasticity;
- Wind erosion resistance, long service life;
- Easy to shape or cut.


Main Uses of Ceramic Fiber Insulation Board
- Sealing materials for expansion joints of furnace doors and furnace bodies;
- Thermal insulation and electrical insulation materials for heating devices of instruments and equipment;
- High-temperature sealing gaskets;
- Hot surface materials for linings of high-temperature heating furnaces;
- Molds for forming deep-processed products such as craft glass and ceramics;
- Inner linings for anti-scouring areas.
Kerui is Highly Efficient in Producing Ceramic Fiber Insulation Board
Optimizing Production Process
Kerui reduces waste and unnecessary links in the production process through refined management and technological innovation. This effectively improves production efficiency and ensures that our warehousing is always sufficient.
Introducing Automated Equipment
Kerui widely uses automated equipment in production lines, such as advanced automated production lines and intelligent systems. This equipment can accurately control the production process and reduce labor costs. As a result, we can give customers cheaper high temperature ceramic insulation board and ceramic blanket price.
Strengthening Quality Control
We strictly control the quality of each process in the production process and implements a comprehensive quality management system. This greatly reduces the number of unqualified products and effectively improves overall production efficiency.
Introducing Advanced Technology
Kerui continuously introduces advanced production technology and equipment at home and abroad, and adopts the latest manufacturing processes. This not only improves production efficiency but also improves the overall quality of fireproof ceramic fiber board. Therefore, Kerui’s ceramic refractory boards are more competitive in the market.


Benefits of Choosing Kerui Ceramic Fiber Insulation Board
Rich Product Variety
Our company is a manufacturer of ceramic fiber products with a history of more than 20 years. Our main products include ceramic fiber insulation board, ceramic fiber blanket, ceramic fiber module, ceramic fibre rope, ceramic fiber cloth, etc. Any ceramic fiber product you need can be purchased from Kerui. It saves the trouble of purchasing separately from each company.
Long Service Life
The service life of Kerui refractory insulation board is usually 1.5 times that of other brands. This greatly reduces the frequency of product replacement and the maintenance cost of the kiln. Therefore, Kerui ceramic fiber insulation board has become a more economical and reliable choice in the high temperature industry.
Exclusive Customization Service
In addition, the types of our high temperature ceramic fiber boards can meet the needs of different customers. You can also send us your specific needs and related drawings to customize the ceramic board insulation. For example, customized size, density, high temperature resistance, shape, etc. Contact us via WhatsApp or email now to get one-on-one exclusive customized service!
