Self-adhesive acoustic felt by the meter 10 mm, made of PES, Made in Germany Self-adhesive acoustic felt by the meter 10 mm, made of PES, Made in Germany

Product: Acoustic felt, sold by the meter, self-adhesive
Material: PES / Polyester
Material Type: Needle-punched felt
Thickness: 10 mm
Surface: Soft
Finish: Self-adhesive with removable protective liner
Adhesive Backing: Full-surface self-adhesive, covered with a protective film
Adhesive: Acrylate emulsion adhesive
Suitable Substrates: Smooth, stable, and as level as possible surfaces to which acrylate emulsion adhesive adheres
Substrate Preparation: The surface should be clean, dry, dust-free, and grease-free
Installation: Can be cut to size with a sharp utility knife. Peel off the protective film, position the felt, and press down evenly
Suitable for: Wall and ceiling coverings, furniture, acoustic elements, and interior finishing
Acoustic Performance: Frequency-dependent sound absorption, particularly in the mid and high frequency ranges
Measured sound absorption coefficient in the diffuse sound field:
α = 0.40 at 1,000 Hz
α = 0.85 at 2,000 Hz
α = 0.97 at 3,150 Hz
Acoustic testing: Center for Acoustics & Dynamics, Innovationsgesellschaft Technische Universität Braunschweig mbH
Measurement method: According to the test report, based in part on DIN EN ISO 354 and ASTM C 423
Care: Vacuum on a low setting or gently dab with a slightly damp cloth
Note on adhesion: Initial adhesion may be lower depending on the substrate. Full adhesion is achieved after pressing firmly and allowing a certain amount of time for the adhesive to set. Not suitable for heavily textured, dusty, damp, greasy, or loose surfaces.
Note on Acoustics: For improving room acoustics. Not a substitute for structural sound insulation between rooms.

Application

The 10-mm-thick self-adhesive PES acoustic felt is suitable for rooms where hard surfaces strongly reflect sound, resulting in reverberation or a reverberant acoustic environment. Typical examples include rooms with glass surfaces, plastered walls, concrete, wood, or minimal fabric furnishings.

The self-adhesive backing makes it easy to install on suitable, smooth, and sturdy surfaces. The felt can be used to cover an entire surface or as a single acoustic panel. Since it is sold by the meter, it can be cut to size and then applied directly to the prepared surface.

Typical applications include:

• 
  wall and ceiling panels; DIY acoustic panels
• Offices and meeting rooms
• Home Offices and Workspaces
• Living Rooms, Music Rooms, and Hobby Rooms
• Furniture and Partition Wall Paneling
• Retail, Trade Show, and Interior Design
• Vehicle and RV Interior Finishing

For good adhesion, the surface should be clean, dry, dust-free, grease-free, and as smooth as possible. Remove the protective film before installation. Then position the felt and press it down evenly. Especially when working on larger surfaces, it is recommended to proceed carefully and in sections.

The acoustic effect was measured. In the mid- and high-frequency ranges, the measured sound absorption increases significantly. The extent to which room acoustics change depends, among other things, on the surface area used, its position in the room, and the overall structure.

Frequently Asked Questions

Does felt improve room acoustics?

Yes. The fiber structure absorbs some of the incident sound energy. This helps reduce unwanted reflections and reverberation. The room can feel quieter, and speech can become clearer.

Has the acoustic performance been tested?

Yes. The sound absorption of the 10-mm-thick PES needle-punched felt was measured. In a diffuse sound field, the following values, among others, were determined:

α = 0.40 at 1,000 Hz
α = 0.85 at 2,000 Hz
α = 0.97 at 3,150 Hz

The results show significant sound absorption, particularly in the mid- and high-frequency ranges.

Does the felt block out noise from other rooms?

Acoustic felt is primarily designed to reduce reflections and reverberation within a room. It is not a substitute for structural sound insulation in walls, doors, or ceilings.

How much acoustic felt is needed?

It is not possible to provide a general figure in square meters. The amount needed depends on the size of the room, the available surfaces, and the desired result. As a general rule, the larger the effectively placed felt surface, the more noticeable the acoustic effect will be.

For larger projects, it is advisable to start by implementing the plan in a small area and then evaluate the results.

Can I cut the felt myself?

Yes. For straight, clean edges, we recommend a sharp utility knife, a sturdy cutting mat, and a metal ruler. With a material thickness of 10 mm, several controlled cuts may be necessary.

How is the self-adhesive acoustic felt installed?

The self-adhesive version has an adhesive backing with a peel-off protective film. After cutting to size, remove the protective film, position the felt on the prepared surface, and press it down evenly.

For larger surfaces, the protective film should not be removed all at once. It is best to work in sections, carefully align the felt, and then press it down firmly.

What kind of surface is suitable?

Suitable substrates are clean, dry, dust-free, grease-free, load-bearing, and as smooth as possible surfaces to which acrylic emulsion adhesive adheres.

Highly textured, porous, dusty, damp, greasy, loose, or coated surfaces can impair adhesion. Therefore, adhesion should first be tested in an inconspicuous area.

Can the felt adhere to wood-grain wallpaper or heavily textured plaster?

Highly textured surfaces are only suitable to a limited extent because the adhesive does not make full contact with the surface. This can result in reduced adhesion. For such surfaces, a test should be conducted in advance using a small sample.

Can the felt be removed again?

The self-adhesive version is designed for permanent attachment. When removed, depending on the surface, it may leave adhesive residue or cause damage or peeling of paint, wallpaper, or coatings. You should test its suitability beforehand, especially on delicate surfaces.

Can the felt be used on curved surfaces?

Slightly curved surfaces are generally possible. For tight radii, you should first test with a small sample to see if the 10-mm-thick felt can conform sufficiently and if the adhesive backing adheres securely.

How do you clean acoustic felt?

Dust and loose dirt can be removed with a soft brush or a vacuum cleaner set to low power. Light stains should be gently dabbed with a soft, slightly damp cloth. Avoid vigorous rubbing, soaking, and harsh cleaning agents.

Is the felt suitable for vehicles?

The felt can be used for trim in vehicle and RV interiors. Before use, check whether the surface is suitable for the self-adhesive backing and whether any special fire, safety, or certification requirements apply to the specific vehicle or component.

Is the felt suitable for public areas?

Use in publicly accessible buildings depends on the requirements of the specific project. If specific fire safety or material certifications are required, it must be verified in advance whether the necessary certifications are available for this product.