Innovative Filler Material for Acoustic Performance and Sustainability

Feltfill is an acoustic filler material designed to improve indoor sound control. The product enhances the performance of acoustic systems and helps create more comfortable interior environments.

Feltfill is produced from PET fibers made with 60% recycled PET bottles. This material supports sustainable production while providing effective acoustic performance.

The porous structure of Feltfill allows sound energy to convert into heat. This process helps absorb sound and reduce noise levels in interior spaces. The material performs especially well at frequencies of 250 Hz and above, where clear speech and communication are important.

Feltfill improves speech intelligibility and helps reduce reverberation time in a room. These qualities make it suitable for offices, meeting rooms, educational spaces, and other environments where acoustic comfort matters.

With its sustainable material content and high acoustic performance, Feltfill provides an efficient solution for modern acoustic applications.

The Key to Acoustic Comfort

Feltfill has been tested according to ISO 354 and ASTM C423 standards. The results confirm its strong acoustic performance.

The material has a weighted sound absorption coefficient (αw) of 0.70. This level of performance helps reduce sound reverberation across different frequencies.

Thanks to its reliable and consistent results, Feltfill improves acoustic comfort in interior environments. It helps create quieter and more comfortable spaces in many applications.

With its proven performance and tested acoustic properties, Feltfill offers an effective solution for modern acoustic design.


A Quieter and More Sustainable Future with Feltfill

Feltfill offers strong sound absorption thanks to its porous structure and unique surface texture. The material performs especially well at frequencies above 125 Hz. This makes Feltfill an efficient solution for improving indoor acoustics.

Designers can also improve its performance by combining Feltfill with other acoustic products or by leaving an air gap behind the material. These applications increase sound absorption and help create more comfortable acoustic environments.

Feltfill performs particularly well in ceiling systems. When used in ceiling-mounted products with the drop-in method, the material can significantly increase sound absorption performance. This application helps improve acoustic comfort in large interior spaces.

The material can also be placed between profiles in partition walls or gypsum ceilings. This installation does not require adhesives and helps reduce sound transmission between spaces. When needed, designers can further enhance acoustic performance with a double-layer application.

Feltfill is suitable for many environments, including homes, offices, restaurants, hotels, and educational spaces. Its flexible use and strong acoustic performance make it a reliable solution for modern interiors.

Where Can Feltfill Be Used?

Feltfill is an acoustic alternative to traditional materials such as rock wool and glass wool. It can be used in many applications where sound control is required.

Common applications include:

Behind acoustic panels
Feltfill improves sound absorption and increases the performance of acoustic panel systems.

Within suspended ceiling systems
It helps reduce reverberation and improves acoustic comfort in interior spaces.

Behind Feltouch Cloud products
The material enhances the acoustic performance of ceiling-mounted systems.

Behind wall cladding systems
Feltfill increases the efficiency of wall-mounted acoustic solutions.

Inside acoustic partition panels
It helps control background noise and creates quieter environments.

Feltfill provides effective sound control while supporting environmentally responsible design. It is a suitable solution for projects that require both acoustic performance and sustainability.