Ceramic Fiber Board: Fiberfrax Duraboard LD: Specifications, Usage, and Applications
Fiberfrax Duraboard LD offers smooth surface quality and dimensional precision for industrial insulation applications.
Fiberfrax Duraboard LD Overview
Fiberfrax Duraboard LD is a rigid, high-temperature ceramic fiber board manufactured using Fiberfrax alumina-silica fibers and binders. It is designed for industrial insulation applications requiring excellent thermal performance, strength, and dimensional stability at elevated temperatures.
In this blog, we will answer the following questions:
- What is Fiberfrax Duraboard LD used for?
- What are the specifications of Fiberfrax Duraboard LD? How does a high-temperature insulation board improve energy efficiency?
- Where can ceramic fiber boards be used in industrial applications?
- What are the benefits of using Fiberfrax Duraboard LD for furnace and kiln insulation?
Ceramic Fiber Board – Fiberfrax Duraboard LD: Specifications
Property |
Value/Description |
| Maximum Temperature Rating | 2300°F (1260°C) |
| Density | 16 pcf (pounds per cubic foot) |
| Standard Thicknesses | 1/4″, 1/2″, 1″, 1-1/2″, 2″ (others by request) |
| Standard Sizes | 24″ x 36″, 24″ x 48″, 42″ x 48″ |
| Color | Cream/White |
| Compressive Strength | 42 psi at 5% deformation, 50 psi at 10%, 57 psi at 15% deformation |
| Material | Alumina-silica ceramic fiber |
| Surface Finish | Smooth, high-quality finish |
| Dimensional Tolerances | Tighter than standard grades |
| Chemical Resistance | Excellent, except against hydrofluoric, phosphoric, hydrochloric, sulfuric acids, and concentrated alkalies |
| Thermal Conductivity | Low (specific values available from manufacturer) |
| Resistance | Thermal shock, mechanical stress, vibration, and erosion |
Fiberfrax Duraboard LD offers smooth surface quality and dimensional precision for industrial insulation applications.
Usage and Applications
Primary Uses
- High-temperature insulation for industrial equipment and processes
- Furnace, kiln, and oven linings (hot face and backup insulation)
- Ceramic fiber board can also enhance insulation in high-temperature ductwork and flue/chimney linings, helping reduce heat loss and energy consumption.
- Expansion joint seals and gaskets
- Fireproofing and heat shields
- Molten metal containment and trough covers
- Industrial heat processing equipment
- Wood-burning stove and domestic appliance insulation
Key Application Features
- Thermal Efficiency: Low thermal conductivity reduces heat loss and energy consumption.
- Mechanical Strength: Excellent rigidity and modulus of rupture allow for self-supporting structures and resistance to mechanical stress and vibration.
- Machinability: Easy to cut, shape, and machine for custom insulation solutions.
- Aesthetic Quality: Smooth, cream/white surface is suitable for exposed or visible insulation applications.
- Chemical Stability: Withstands most corrosive environments except certain strong acids and alkalies.
- Fast Installation: Lightweight and rigid, allowing quick handling and high installation rates.
In addition, ceramic fiber board is compatible with other insulation materials such as ceramic fiber blankets, providing flexible options for layered or multi-stage insulation systems.
Benefits of Using Ceramic Fiber Board for Industrial Insulation
Ceramic fiber board offers significant advantages for industries that rely on high-temperature processes. Its lightweight structure, high strength, and thermal stability make it an ideal choice for various applications, from metallurgical processing to power generation.
Industrial insulation board solutions like Fiberfrax Duraboard LD help companies improve energy efficiency, extend equipment life, and reduce operational costs.
By selecting a ceramic fiber insulation product designed for demanding environments, operators can achieve superior performance and reliability across their systems.
Final Thoughts on Using Ceramic Fiber Board for Industrial Insulation
Fiberfrax Duraboard LD is a versatile, high-performance ceramic fiber board ideal for demanding industrial applications requiring high-temperature insulation, mechanical strength, and dimensional precision. Its combination of low thermal conductivity, chemical resistance, and easy machinability makes it suitable for a wide range of uses in furnaces, kilns, heat shields, and more.
Ready to select the right ceramic fiber board for your high-temperature application? Explore Armil CFS’s full range of high-performance insulation solutions.
Contact Armil CFS here or call to discuss your insulation needs — from standard boards to fully customized furnaces, kilns, and industrial equipment solutions.
800-565-0306
Our team is here to help you improve efficiency and performance with the right materials.