Fiberfrax Papers

High-Temperature Ceramic Fibre Paper for Thermal Management and Sealing Applications

Lightweight, Flexible Insulation Solutions for Applications up to 1400°C

Fiberfrax® Ceramic Fibre Paper is a versatile family of lightweight, nonwoven insulation materials manufactured from alumino-silicate ceramic fibres. Designed to provide reliable thermal performance, flexibility and ease of fabrication, Fiberfrax Papers are used across a wide range of industrial applications requiring thermal insulation, gasketing, heat shielding and refractory back-up insulation.

Manufactured using a specialised papermaking process, the ceramic fibres are randomly orientated and held within a uniform matrix to produce flexible sheets with excellent thermal stability and consistent performance. By combining different fibre types, binder systems and additives, the Fiberfrax Paper range provides solutions for applications ranging from general industrial insulation to demanding aerospace and high-temperature process environments.

Offering low thermal conductivity, low heat storage and excellent chemical resistance, Fiberfrax Papers provide dependable insulation performance while remaining easy to cut, shape, wrap and fabricate into custom components.

Why Choose Fiberfrax Paper

Fiberfrax Papers combine thermal efficiency with exceptional flexibility and fabrication characteristics, making them suitable for a wide variety of high-temperature sealing and insulation applications.

Excellent high-temperature stability
Low thermal conductivity
Low heat storage characteristics
Lightweight and easy to handle
Excellent thermal shock resistance
High heat reflectance
Good dielectric strength
Excellent corrosion resistance
Easy to wrap, cut and shape
Suitable for complex fabricated components
Wide range of grades to suit different operating requirements

Fiberfrax Technical Data

Property	FT	DS	H
Classification Temperature	1250°C	1250°C	1400°C
Melting Point	1800°C	1800°C	1800°C
Density	200-240 kg/m³	160-200 kg/m³	180-280 kg/m³
Typical Chemical Analysis (wt. %)
SiO₂	50.0-54.0	50.0-54.0	42.0-52.0
Al₂O₃	46.0-50.0	46.0-50.0	48.0-58.0
Fe₂O₃ + TiO₂	<0.2	<0.2	<0.2
Alkalis	<0.25	<0.25	<0.25

Typical Applications

Fiberfrax Papers are used in applications where lightweight, flexible insulation materials are required to provide thermal protection, sealing and heat management in demanding operating environments.

High-temperature gaskets and seals
Thermal insulation systems
Refractory back-up insulation
Fire protection systems
Hot gas filtration media
Thermal barriers and heat shields
Molten metal splash protection
Separator and parting media
Fabricated insulation components
Aerospace thermal protection systems

Typical Industries

Fiberfrax Papers are specified across industries where lightweight thermal insulation, heat shielding and high-temperature sealing solutions are critical to operational performance.

Aerospace
Heat treatment
Petrochemical processing
Glass manufacturing
Ceramics production
Automotive manufacturing
Appliance manufacturing
Steel production
Non-ferrous metals processing
Industrial thermal processing

Technical Support and Specification Guidance

Selecting the correct ceramic fibre paper is critical to achieving thermal efficiency, insulation performance and long-term reliability. Factors such as operating temperature, fabrication requirements, chemical exposure and mechanical performance should all be considered during material selection.

Our technical team provides support across product selection, performance optimisation and application design, ensuring the most suitable Fiberfrax Paper grade is specified for your operating conditions and process requirements.

Need help specifying the right material?

Speak with our technical specialists to discuss your insulation, sealing or thermal management requirements. We can assist with material selection, grade selection and application-specific performance guidance.

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