Sound attenuation

Sound attenuation airplane APU
Sound attenuation applications include auxiliary power units, aircraft air-conditioning systems, aero engines, HVAC systems, explosion-proof casings and all kinds of industrial mufflers. In all these areas, sound attenuation material needs to absorb sound and resist high temperatures while displaying high vibration resistance.
sound attenuation compressorBekipor® is a family of non-woven 3D media that consists of very fine steel fibers. Due to its unique structure, this random filler matrix media is excellent at absorbing sounds and vibrations.

Depending on the desired sound absorption, Bekaert offers a wide range of media with different pore sizes and flow resistivity.

Thanks to its non-flammable and corrosion-resistant properties, Bekipor® can be used to reduce noise in applications that are exposed to high temperatures and other extreme conditions.

The fiber-based structure can be shaped and molded in any size or panel type to fit the work environment without losing its effectiveness.


Optimal acoustical impedance matching even at high frequencies

Narrow tolerances in fiber making and precise control of media composition and fiber diameter optimize acoustical impedance.

Reliable performance in damp conditions and fluctuating temperatures

Even when metal fibers are wet and hot or in a highly corrosive environment, the material maintains its dampening properties.

Easy to shape to your needs

It’s possible to shape the media into flexible designs, making it easy to fit into tight spaces.

Easy to clean and disinfect

The Bekaert engineered solution for sound attenuation is offline cleanable, ecological and durable.


Read our whitepapers on metal fiber technology

  • better together

    Situation Skiers count on safety when they go up the mountain

    Solution In close cooperation Bekaert developed superior quality wires that meet the technical customer requirements of ropeway constructors

    Result The customer handles the production of the cables, but also on-site weaving (or splicing) and installation. The cables have a life expectancy up to 40 years

  • better together

    Situation You want to apply innovative solutions tailored to your projects

    Solution We analyze possibilities and come with economical solutions

    Result Save money and time during construction

  • better together

    Situation We need a safe solution and huge monthly volumes

    Solution Via tests in the Bekaert lab, we worked out the required fiber mix with the lowest cost to serve our customers

    Result Cost efficiency must not be a compromise on quality

  • better together

    Situation Want to create long aesthetical walls and avoid movement joints

    Solution Applying Brickforce® allows me to double my joint distance

    Result With Brickforce® masonry reinforcement I can create new and exciting masonry wall design

  • better together

    Situation Customer demand for compact boiler design through a total solution.

    Solution Joint development of an environment-friendly burner system.

    Result Customers improve their competitiveness.