BK Raumakustik (Böcking Kemmerling Raumakustik GmbH) plans and delivers bespoke room-acoustic solutions made from the aPerf® material: from consulting through development to turnkey installation. Head office in Neuss, Rhine/Main branch in Frankfurt. aPerf® is a sound-absorbing nonwoven made of 100 % polyester (partly recycled PET bottles), thermally and mechanically bonded without chemical binders. The material is self-supporting and can be used without a frame, is dyed throughout, ball-impact-safe per DIN 18032, OEKO-TEX Standard 100 certified and fully recyclable. Manufactured in Germany and Switzerland. From the aPerf® materials BK Raumakustik builds wall panels, ceiling rafts, desk dividers, broadband and bass absorbers, acoustic prints and industrial hall acoustics. Member of the DGNB.
WebsiteaPerf mat
The new, lightweight acoustic mat of the aPerf® family (since 06/2026, not to be confused with the former 'aPerf mat', now called aPerf pad): a self-supporting polyester nonwoven in four thicknesses from 20 to 50 mm. For flat wall and ceiling absorption and as a backing. Mounted directly it reaches αw 0.50 (20 mm) up to 0.85 (50 mm); emission-free and fully recyclable.
ISO 354 – reverberation chamber· 4 variants
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αp per ISO 11654
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Absorber class: D
Weight / density: 600 g/m²
