Acoustic Felt Wall Liner Full Coverage Underlay For Existing Finishes

Acoustic felt wall liner is a continuous underlayment designed to be installed behind existing or new interior wall finishes to provide hidden sound absorption. Manufactured from 100% recycled polyester fiber and thermally bonded without formaldehyde or chemical binders, the liner is a thin, flexible felt that can be applied directly to studs, drywall, or existing wall surfaces. It is then covered by the final finish material such as stretched fabric, wood slats, perforated panels, or even new drywall in specific assemblies. The liner achieves meaningful sound absorption, reducing overall room reverberation without altering the visible design of the space. Because it is hidden, it offers complete design freedom. The material is lightweight, easy to cut, and quick to install with staples or adhesive. It meets Class B1 fire safety standards and carries OEKO-TEX STANDARD 100 certification. For architects who want acoustic performance without visible panels, the felt wall liner provides a behind-the-scenes solution that integrates seamlessly into standard wall construction.

Many interior designs cannot accommodate visible acoustic panels without compromising the architectural vision. Minimalist spaces, historic renovations, and interiors with custom millwork or artwork require invisible acoustic treatment. Acoustic felt wall liner solves this by moving the absorption behind the finish surface. The liner is installed during construction or renovation, before the final wall covering is applied. Stretched fabric wall systems can use the liner as the acoustic backing directly behind the fabric. Wood slat installations benefit from the liner absorbing sound that passes between the slats. The result is a room that looks exactly as designed but sounds significantly better. No visible panels, no compromise on aesthetics, and a straightforward installation that fits into standard construction sequences.

Behind stretched fabric wall systems, beneath wood slat or batten installations, behind perforated acoustic panels, within stud cavities before drywall, and under any acoustically transparent decorative finish where invisible absorption is required.

The felt liner functions as a porous absorber within the wall assembly. Sound passes through the decorative finish layer and enters the felt, where fiber vibration converts acoustic energy to heat. The liner works with the finish layer to create a broadband absorber. The effectiveness depends on the acoustic transparency of the finish material; heavily perforated or fabric surfaces allow the most sound through to the liner.

Ensure the finish material you plan to install over the liner is acoustically transparent or has sufficient open area. Work with our team to confirm compatibility. For maximum absorption, select a thicker liner. The liner can be layered with other acoustic products within the wall cavity for enhanced performance. It is typically installed before the finish layer by the wall contractor.

No, the liner is completely hidden. It is installed as an underlayment, and the final wall finish covers it entirely. The acoustic benefit is delivered without any visual evidence of the treatment.

Standard wallpaper is not acoustically transparent. However, acoustically transparent wallcoverings exist and can be specified with the liner beneath. Consult with us about compatible finish materials.

Full coverage is most effective, but even partial coverage behind specific areas can improve room acoustics. The more surface area covered, the greater the absorption.

• Our PET Felt Acoustic Panels are made from 100% polyester fiber, does not contain any chemical binders including formaldehyde.
• The whole production process is completely physical through high temperature and high pressure by needle punching processing.
• Our PET Felt Acoustic Panels are touchable and Echo - friendly.
• The weight is light and surface is semi-rigid.
• Easy to install, easy to cut, easy to dust.
• Our polyester fibre panel is flame retardant, heat insulation, thermal insulation, moistureproof, prevent mildew,

• Sheet Packing, Plastic bag inside, Carton outside;
• Size: Cut to Customized

• We only use high quality raw fiber material;
• Considering of using sustainable material, we use 50% to 60% of prevous post-consume recycled PET bottle-flake;
• It's a totally healthy material that's touchable and recyclable;

We can provide all the services you need to export from China. Such as sourcing, guiding, translating, buying, quality inspect, documents prepare, declaring shipping etc service.

We would like to build up friendship, trust and long term cooperation with our clients! We aim to be our clients' reliable partner in China!

• Wholesale--lowest price
• With fashion design and good quality
• Strict quality control during every production product
• We have our own factory so we can provide you the best price
• Customer design welcome, OEM and ODM orders welcome
• We can make samples as your requests. Or you can send us your design; we will make samples for you.