PET Felt Acoustic Wall Panels: What They Are, How They Work and Where to Use Them
PET felt acoustic panels are wall-mounted sound absorbers made from recycled polyethylene terephthalate fibre, the same material recovered from plastic bottles. In-Acoustic, the manufacturer behind the felt panel range at Wall Panels Pro, compresses and bonds these fibres into dense tiles that absorb echo effectively without sacrificing visual appeal.
How PET felt panels reduce echo
Sound energy bounces off hard surfaces: concrete, glass, ceramic tile, plasterboard. When a room has too many hard parallel surfaces, sound reflects back and forth and the result is reverberation, that hollow, echoey quality that makes speech harder to follow and music less clear. PET felt panels interrupt this by converting sound energy into a negligible amount of heat as the wave passes into the fibrous structure.
The effectiveness of an acoustic panel is expressed as its NRC (Noise Reduction Coefficient), a number between 0 and 1. In-Acoustic 18mm panels achieve NRC values between 0.70 and 0.90 depending on shape and configuration. Bare plasterboard has an NRC of approximately 0.03. The difference in a room is audible within seconds of installation.
Self-adhesive installation
Every In-Acoustic panel comes with a factory-applied adhesive backing. There are no fixings, no brackets and no tools required. Peel the backing film, press the panel against a clean flat surface and it holds permanently. This makes the panels suitable for rented spaces where drilling is not permitted, and means installation of a full wall takes under an hour.
On smooth painted plasterboard, the panels can generally be removed without damaging the surface. On wallpaper or textured coatings, supplementary contact adhesive at the panel edges improves hold and reduces the risk of surface damage on removal.
Shapes, sizes and colours
In-Acoustic panels are available in circles, dots, geometric shapes, stripes, slatted and mosaic configurations. Each tile measures 60x60cm. Thickness options are 9mm and 18mm; the 18mm version provides significantly higher absorption across the mid and low-mid frequency range and is the correct choice for most applications. The colour range covers over 80 options across neutrals, pastels and deep saturated tones. Panels can be matched to existing interior colour schemes, installed as a feature, or mixed across a wall for a pattern effect.
Where to use PET felt acoustic panels
Home offices benefit most immediately. Video call echo is a mid and high frequency problem; a few panels placed behind or beside a monitor reduces it measurably. Six to ten panels on the main reflective wall of a 12 to 16 square metre room produces a noticeably drier acoustic.
Other strong applications: children's rooms (durable, no sharp edges, available in engaging shapes and colours), open plan offices, home cinema rooms, restaurants and cafes with hard surface noise complaints, and music practice rooms where echo control is the primary goal.
Fire rating and material safety
In-Acoustic PET felt carries a B fire classification under EN 13501. The material contains no formaldehyde and no VOCs. It is non-toxic and certified safe for residential use including children's bedrooms. GRS (Global Recycled Standard) certified.
Shipping across Europe
Wall Panels Pro ships In-Acoustic PET felt panels across continental Europe, the UK, Norway and Switzerland. Free shipping applies on all PET felt orders. Delivery to most EU destinations takes 3 to 5 business days from our warehouse in Latvia.
Frequently asked questions
What is the difference between soundproofing and acoustic treatment?
Soundproofing blocks sound transmission between spaces and requires mass, decoupling and sealing, which is primarily a construction task. Acoustic treatment reduces echo and reverberation inside a room. PET felt panels are acoustic treatment. They will not stop sound from a neighbouring flat reaching you, but they will significantly improve how your own room sounds.
How many panels do I need for a home office?
For a typical 12 to 16 square metre room, 6 to 10 panels on the primary reflective wall produces a clearly audible improvement. Rooms with more hard surfaces or higher ceilings may benefit from additional coverage.
What is NRC and what rating should I look for?
NRC (Noise Reduction Coefficient) measures sound absorption on a scale from 0 (total reflection) to 1 (total absorption). For home offices and living rooms, panels rated 0.6 to 0.8 NRC are sufficient. Recording studios typically target 0.8 to 0.9 NRC across the treated surface area.
Can I remove the panels without damaging my walls?
On smooth painted plasterboard, yes. The adhesive is designed for clean removal from standard surfaces. On wallpaper, textured paint or bare plasterboard the result varies; testing a single panel in a discreet area before full installation is advisable.
Are 9mm or 18mm panels better?
18mm panels provide meaningfully higher absorption, particularly in the mid-low frequency range where room echo is most noticeable. Choose 9mm only if a very thin profile is a priority or if only light high-frequency echo control is the goal.
Do you ship PET felt panels to Germany, the Netherlands and other EU countries?
Yes. Wall Panels Pro ships across the EU with free shipping on all PET felt orders. Delivery to Germany and the Netherlands typically takes 3 to 5 business days from our warehouse in Latvia.
Are PET felt panels safe for children's rooms?
Yes. The material contains no formaldehyde, no VOCs and no sharp edges. In-Acoustic panels carry a B fire rating under EN 13501 and are GRS certified. They are safe for residential and children's room installation.
What shapes are available and does the shape affect acoustic performance?
Available shapes include circles, dots, geometric, stripes, slatted and mosaic. Shape affects diffusion characteristics alongside absorption. Circle and geometric arrays scatter sound in multiple directions while absorbing it; stripe and slatted configurations work primarily as absorbers. For most domestic applications the acoustic difference between shapes is secondary to coverage area.