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Comparison 7 min read

PET vs Wood Wool vs Foam — pick the right acoustic panel

Three materials, three price points, three finishes. PET, wood wool, and foam all absorb sound — but the right pick depends on the room, the design brief, and what you're willing to see on the wall. Here's how to choose.

PET acoustic panels

Non-fibrous polyester board, made from recycled bottles. Comes in a wide colour range with CNC-cuttable patterns. Wipe-clean, low-VOC, and safe around children.

Best for offices, restaurants, schools, hospitals, and any space that wants acoustics to double as design.

Wood wool boards

Cement-bonded wood excelsior. Rugged, non-combustible, impact-tolerant. Distinctive natural finish. Slightly heavier than PET, harder to install overhead.

Best for schools, cafeterias, corridors, warehouses, and design-forward interiors where the raw texture is a feature.

Acoustic foam

Open-cell polyurethane foam, moulded into pyramid, wedge, or flat shapes. Cheapest per NRC point and the strongest broadband absorber in a small footprint. Not decorative on its own — usually behind fabric or in professional studios.

Best for recording, mixing, podcast, and home-theatre rooms.

Side-by-side

Rough rule of thumb — foam has the highest NRC per rupee, PET has the best design flexibility, wood wool is the most durable in high-traffic areas.

Frequently asked

About PET vs Wood Wool vs Foam.

Yes — most professional projects do. Foam on primary reflections behind a fabric-wrap, PET on visible walls, wood wool as a design feature.

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