aPerf® pad
aPerf pad
NRC 0.90–0.95
Manufacturer
BK Raumakustik
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.
Documents
Description
aPerf® pad is a self-supporting acoustic mat of thermally bonded polyester for industrial and machine acoustics. It lines halls and machine enclosures and serves as an absorber in cavities and expanded-metal ceilings, either mounted directly or laid in. It is made in one thickness and three colors. The product was formerly called aPerf mat; that name now belongs to a different aPerf® product.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
Frequency values
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| Compare | Value | |
|---|---|---|
| Overall build-up 7.9 in | NRC0.95 | |
| Direct (no gap) | NRC0.90 |
NRC: 0.95 (derived from ISO 354 lab data)
Weight / density: 2,500 g/m²
Measured values as a table (2 measurements)
| Build-up | NRC | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 in · 2,500 g/m² · Direct (no gap) | 0.90 | 0.13 | 0.21 | 0.29 | 0.48 | 0.68 | 0.77 | 0.86 | 0.91 | 0.94 | 1.03 | 0.98 | 0.98 | 0.97 | 1.03 | 1.03 | 1.01 | 1.04 | 1.07 |
| 2 in · 2,500 g/m² · Overall build-up 7.9 in | 0.95 | 0.44 | 0.34 | 0.74 | 0.92 | 0.83 | 1.02 | 0.96 | 0.94 | 0.95 | 0.94 | 0.99 | 1.01 | 0.99 | 1.05 | 1.02 | 1.03 | 1.04 | 1.05 |
Measured values as a table (2 measurements)
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