22 sustainable materials that can be used for acoustic. Narrow them down by feedstock and availability.
Sound absorption and interior material using eelgrass naturally washed up on the shore.
A sound-absorbing material made from eelgrass. Binder and backing differ by product.
Semi-rigid sound-absorbing panel containing at least 80% recycled PET.
A lightweight PET felt panel that is easy to rout and cut, making it well suited to designing sound absorptio…
A bio-based sound-absorbing panel molded from wood cellulose and agricultural feedstock.
It keeps the function of an acoustic panel, while the plant-based feedstock on the surface and its natural co…
An interior/acoustic board with a straw core pressed between kraft liners.
A board of compressed straw core faced with kraft paper. The manufacturer states that no adhesive is used in…
Thermal insulation / sound absorption board made by bonding cork granules with heat and pressure.
An insulation material the manufacturer describes as expanded cork with no additives. The same material can b…
Decorative / sound-absorbing brick made by compressing textile waste with a bio-based binder.
A brick-type module that keeps the original color and texture of the textiles, so the origin of the textile w…
Acoustic panels in VANK_BIO, a flax-and-hemp fibre biocomposite from VANK, Poland. Sound absorption αw=0.90 (FLAT), sizes from 40×80×4 cm up to 240×160 cm, clip or magnetic mounting. An rPET non-woven version and recycled-fabric or wool upholstery run alongside. Green Product Award 2022 (Editor's Choice); German Sustainability Award 2022 finalist.
The acoustic axis is rPET-heavy (Autex, EchoPanel, Tornex); this hits the same performance (αw 0.90) with a p…
Recycled rubber granulate made solely from end-of-life tyres, separated from steel and textile at 99.99% precision. Seven standard fractions (0.8–7.0 mm). Third-party LCAs (FORCE Technology, IFEU; ISO 14040/44, peer-reviewed) show 700 kg CO2 saved per tonne recycled instead of incinerated. All six plants ISO 9001/14001/45001/50001. For sports floors, playgrounds, flooring, acoustics and asphalt.
The three existing rubber records are finished flooring; this is the upstream feedstock granulate. A rare raw…
Floor impact-sound reduction underlayment using waste tire rubber.
A floor sound-insulation underlayment made with 94% recycled rubber (based on GenieMat RST).
Semi-rigid thermal and sound-absorbing insulation made from grass fiber.
Insulation made from grass fiber. The binder and additive mix differs by product.
A mineral fiber ceiling panel range using recycled content and a plant-based binder.
A glass-fiber-based sound-absorbing ceiling material made with a plant-based binder.
Insulation of 100% New Zealand wool, in batts, blown-in and acoustic panels, with Declare, HPD and EPD published.
A documented option where synthetic insulation is unwanted — R-values and even the sub-1% boric acid treatmen…
Recycled cellulose interior board
An interior board that can be cut, drilled, glued and laminated like a wood-based board, while showing as-is…
Korean glass wool insulation with a corn-derived binder — over 70% recycled material, no formaldehyde emission, with Korea Eco-Label and top-grade HB mark.
Among insulation readily available in Korea, one that states recycled content and binder chemistry in numbers…
A mycelium-based sound-absorbing panel
Sound absorption and a soft tactile quality come from the same surface, so interior walls that need acoustic…
A recyclable sound-absorbing ceiling tile system using basalt-based stone wool as the core.
A basalt-based stone wool ceiling material. The manufacturer operates a take-back and recycling scheme.
A Korean sound-absorbing panel/felt material made by turning post-consumer PET into fiber.
A sound-absorbing material that the manufacturer states is 100% recycled polyester fiber recovered after use.
Decorative / sound-absorbing biocomposite platform combining food and agricultural by-products with various binders.
A composite using, per the manufacturer, 60–95% by weight of malt husks, grass fibers, hazelnut shells, eggsh…
A sound-absorbing panel combining certified wood wool and cement.
A sound-absorbing ceiling material of wood wool bonded with cement.
Building insulation batt made from recycled waste jeans / cotton fiber.
As a case of textile waste turned into a hidden building performance material, it can extend the scope of a f…
A 12 mm decorative, sound-absorbing panel made with waste PET bottles.
A thin panel that is easy to color and cut, making it easy to match wall graphics, sound absorption and furni…
Glass wool insulation from Byucksan, Korea. The official catalogue states over 85% waste-material (recycled glass) usage. Enerfree grade at λ 0.032 W/mK (Korean energy-code grade 가), standard 0.034–0.037, densities 24–120 kg/m³, hot shrinkage 300–400°C. KS, JIS, eco building material, Korea Eco-Label and non-combustibility certificates reproduced in the catalogue. Lines include Enerfree, Waterfree (water-repellent external), Freemat, G/C board and panel core.
The second Korean glass wool record after KCC Nature — this one puts the waste-material rate (85%+) in its ca…