StudweldPro-UK
The UK leader in Stud Welding and Refractory products
- 01777 874 500
- sales@swpuk.com
- refs@swpuk.com
The UK leader in Stud Welding and Refractory products
Fiberfrax® Duraboard® products are a family of rigid ceramic fibre insulation boards engineered for high-temperature thermal insulation applications requiring low thermal conductivity, excellent thermal shock resistance and long-term dimensional stability. Manufactured from Fiberfrax alumina-silica fibres using a wet-forming process, they combine lightweight construction with exceptional strength, rigidity and machinability.
Designed for demanding industrial environments, Duraboard products offer excellent resistance to thermal shock, chemical attack, vibration and mechanical stress. Their self-supporting structure enables easy handling, fabrication and installation while providing reliable thermal insulation performance across a wide range of furnace, kiln and thermal processing applications.
Available in multiple grades, densities and temperature classifications, the Duraboard range provides tailored solutions for refractory backup insulation, hot-face protection, fabricated components and extreme-temperature thermal management systems.
Duraboard products combine thermal performance, mechanical strength and fabrication flexibility for demanding industrial insulation applications.
| Property | 120ZK | 120LD | 140ZK | 140LD | 1500 | 1600 |
| Continuous Use Temperature | 1200°C | 1200°C | 1400°C | 1400°C | 1500°C | 1600°C |
| Melting Point | 1760°C | 1760°C | 1740°C | 1740°C | Dependant on Application | Dependant on Application |
| Density | 390 kg/m³ | 300 kg/m³ | 340 kg/m³ | 300 kg/m³ | 230 kg/m³ | 200 kg/m³ |
| Typical Chemical Analysis (fibre wt.%) | ||||||
| SiO2 | 50.0-58.0 | 50.0-58.0 | 52.0-56.0 | 52.0-56.0 | 44.0-50.0 | 37.0-43.0 |
| Al2O3 | 42.0-50.0 | 42.0-50.0 | 28.0-32.0 | 28.0-32.0 | 49.0-55.0 | 56.0-62.0 |
| Fe2O3 + TiO2 | <0.2 | <0.2 | <0.2 | <0.2 | <0.5 | <0.5 |
| ZrO2 | - | - | 14.0-18.0 | 14.0-18.0 | - | - |
| Alkalis | <0.25 | <0.25 | <0.25 | <0.25 | <0.25 | <0.25 |
Duraboard products are used throughout high-temperature industries where rigid insulation, thermal protection and dimensional stability are critical.
Fiberfrax Duraboard products are specified across industries requiring rigid, lightweight thermal insulation for demanding environments.
Selecting the correct Duraboard grade is essential to achieving optimum thermal performance, mechanical strength and service life. Factors including operating temperature, mechanical loading, fabrication requirements and exposure conditions should all be considered during material selection. Different grades are available to optimise performance for refractory backup, structural insulation, fabrication and extreme-temperature applications.
Our technical team provides support across thermal insulation design, material selection and application optimisation, helping ensure the most appropriate Duraboard solution is specified for your operating environment.
Speak with our technical specialists to discuss thermal insulation requirements, refractory lining systems and high-temperature processing applications. We can assist with product selection, thermal performance optimisation and application-specific specification guidance.
