Polycrystalline Mullite Fiber Board for industrial furnaces
Product Description:
Temp Grade: 1600°C, 1700°C, 1800°C
Density: 300kg/m₃–600kg/m₃
Specification:
• 25x600x900/1000mm
• 50x600x900/1000mm
• 75x600x900/1000mm
• 150x600x900/1000mm
Customized specification is acceptable.
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Polycrystalline Mullite Fiber Board
Polycrystalline Mullite Fiber Board is a rigid, lightweight high-temperature insulation board manufactured from high-purity polycrystalline mullite fibers. Also known as Polycrystalline Fiber Board or PCW Insulation Board, it is designed for industrial thermal insulation applications requiring excellent temperature stability, low thermal conductivity, low heat storage, low linear shrinkage, and good thermal shock resistance.
As a professional Polycrystalline Mullite Fiber Board supplier and manufacturer, Mindelun provides PCW insulation board for industrial furnaces, heat treatment equipment, ceramic kilns, steel processing lines, aluminum furnaces, glass furnaces, petrochemical units, and other high-temperature thermal processing equipment.
High-Performance PCW Insulation Board
Polycrystalline Mullite Fiber Board provides a rigid and dimensionally stable insulation structure for high-temperature equipment. Compared with conventional lightweight insulation materials, PCW board is designed for applications where high-temperature performance, low shrinkage and thermal cycling stability are important.
Key advantages include:
- Excellent high-temperature stability
- Low thermal conductivity for effective heat-loss reduction
- Low heat storage for faster heating and cooling
- Low linear shrinkage during repeated heating
- Excellent thermal shock resistance
- Good chemical stability
- Lightweight rigid structure
- Easy cutting, machining and installation
- Custom thickness, density and dimensions
- Suitable for high-temperature furnace insulation
These properties make Polycrystalline Mullite Fiber Board suitable for both new furnace construction and insulation replacement projects.
Polycrystalline Mullite Fiber Board for Industrial Furnaces
PCW board is widely used as high-temperature furnace insulation where rigid insulation and dimensional stability are required. Typical applications include:
- Steel reheating furnace insulation
- Steel heat treatment furnace insulation
- Annealing furnace insulation
- Continuous heat treatment equipment
- Aluminum melting furnace insulation
- Aluminum holding furnace insulation
- Ceramic kiln insulation
- Glass furnace insulation
- Petrochemical and reforming furnace insulation
- High-temperature electric furnace insulation
- Furnace door and furnace cover insulation
- Furnace backup insulation
- High-temperature equipment thermal protection
For furnace systems requiring flexible insulation, Polycrystalline Mullite Fiber Blanket can be selected for areas where a soft and conformable insulation material is preferred.
Custom Polycrystalline Mullite Fiber Board
Mindelun provides custom Polycrystalline Mullite Fiber Board for distributors, wholesalers, insulation contractors, furnace manufacturers, engineering companies and industrial end users.
Depending on project requirements, we can support customization of:
- Board thickness
- Board length and width
- Density
- Cutting dimensions
- Special shapes
- Packaging
- OEM requirements
Customers can provide equipment drawings, insulation dimensions, samples, working temperature and application details. Mindelun can then recommend a suitable PCW insulation board specification for the project.
PCW Board for Furnace Lining and Thermal Insulation
Polycrystalline Mullite Fiber Board for furnace insulation can be used as rigid insulation in high-temperature furnace structures, thermal barriers, furnace doors, covers, expansion areas and backup insulation systems.
For applications requiring additional mechanical support or flexible furnace lining, PCW board can be combined with other ceramic fiber insulation materials. Mindelun also supplies Ceramic Fiber Board, Ceramic Fiber Module, and other industrial insulation products for complete furnace insulation systems.
Polycrystalline Mullite Fiber Board Specifications
| 1 | Item | Unit | Test Result | Test Result |
| 2 | Grade | / | Mullite | Mullite |
| 3 | Specification temp | (℃) | 1600 | 1800 |
| 4 | Working temperature | (℃) | 1450 | 1650 |
| 5 | Color | / | Pure White | Pure White |
| 6 | Density | (kg/m₂) | 300-600 | 300-600 |
| 7 | Permanent shrinkage Rate of liner (24h, density 300kg/m3) | (%) | ≤0.5 | ≤0.3 |
| (1450℃） | (1650℃） | |||
| Thermal conductivity of each heat surface(density 300kg/m3) | 0.22（1000℃） | 0.22（1000℃） | ||
| 9 | Compression strength (density 280kg/m₃) | (Mpa) | ≧0.5 | ≧0.06 |
| 10 | Al₂O₃ | (%) | 68 | 78 |
| 11 | Al₂O₃+SiO₂ | (%) | 99.5 | 99.8 |
| 12 | Al₂O₃+SiO₂+ZrO₂ | (%) | – | – |
| 13 | ZrO₂ | (%) | – | – |
| 14 | Fe₂O₃ | (%) | – | – |
| 15 | Na₂O+K₂O | (%) | – | – |
| 16 | Thickness | (mm) | 25/50/75/150 | |
| 17 | Width | (mm) | 600 | |
| 18 | Length | (mm) | 900/1000 | |
The final board specification should be selected according to the working temperature, furnace design, insulation thickness, mechanical conditions, installation method and required thermal performance.
Polycrystalline Mullite Fiber Board Manufacturer for B2B Projects
Mindelun supplies Polycrystalline Mullite Fiber Board for global B2B customers looking for a reliable PCW insulation supplier, high-temperature insulation manufacturer, furnace insulation material supplier, or custom thermal insulation factory.
Our supply service is suitable for:
- Industrial insulation distributors
- Refractory material wholesalers
- Furnace manufacturers
- Furnace lining contractors
- Engineering and EPC companies
- Industrial equipment manufacturers
- Steel and aluminum plants
- Ceramic and glass manufacturers
- Petrochemical projects
- High-temperature processing industries
Mindelun supports factory-direct supply, customized production, OEM requirements and mixed-product procurement for industrial insulation projects.
Why Choose Mindelun for PCW Insulation?
Mindelun combines Polycrystalline Mullite Fiber insulation, ceramic fiber insulation and other high-temperature thermal insulation materials to support one-stop B2B sourcing.
If you are looking for a Polycrystalline Mullite Fiber Board manufacturer, PCW board supplier, high-temperature insulation board factory, or custom furnace insulation supplier, send us your required working temperature, board dimensions, thickness, density and application. Our team can recommend a suitable insulation solution for your project.
Professional Insulation Materials Manufacturer in China
Mindelun supplies a comprehensive range of ceramic fiber, mineral wool, calcium silicate, silica fiber and advanced insulation materials for industrial applications. From standard products to customized insulation solutions, we help customers improve thermal efficiency, equipment protection and operating performance.
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Start Your Project With Mindelun Insulation Products
We are a professional and formal manufacturer of high temperature insulation materials. We mainly produce and sell products under our own brand with self-operated production and direct sales, without any middlemen trading links.
The core founding team has more than 14 years of in-depth experience in the insulation materials. Mindelun production team and cooperative manufacturing bases possess over 10 years of standardized mass production experience, with mature technology and stable production capacity.
Our product portfolio covers full-range general ceramic fiber insulation series and meet the needs of industrial furance heat saving needs. We also support personalized product customization like calcium silicate products, silica glass fiber products and minel wool insulation series according to clients’ market and end-user requirements.
We provide one-stop OEM/ODM customized manufacturing services for industrial insulation materials and building insulation materials. With extensive expertise in material selection, application-based quantity calculation, and custom-shaped component fabrication, our team delivers tailored solutions based on specific project requirements. From technical solution design, sample development, and mold opening to precision processing and mass production, Mindelun provides reliable full-process support for customized insulation solutions.
Full-range customization is fully supported. We can customize product size, package style, logo, providing one-stop solutions covering design, production and packaging.
Mindelun offers flexible order quantities, including sample orders, small retail orders, air shipments, 20GP, and 40HQ containers. One container can be mixed with at least 10 different products, helping wholesalers, retailers, distributors, and project customers reduce procurement costs through one-stop sourcing.
As a professional insulation materials supplier and wholesaler, Mindelun also provides flexible product specifications and quantities based on specific project requirements.