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This AlphaPerf® Metal Acoustic Panel is a modular wall unit consisting of a metal or aluminum frame surrounding a perforated metal skin, with an encapsulated acoustical sound absorber. The perforated metal allows sound waves to enter the absorbing material where a portion is transformed from sound energy to heat. AlphaPerf® Metal Wall Panels are used primarily as sound absorbers in potentially noisy environments such as gymnasiums, swimming pools, pump rooms, and industrial fabrication work areas.
| Sound Absorption (Hz) 2" nominal thickness, fill unwrapped | ||||||||
|---|---|---|---|---|---|---|---|---|
| Pattern | Mount | 125 | 250 | 500 | 1000 | 2000 | 4000 | NRC |
| Flat | Flush | 0.22 | 0.59 | 1.19 | 1.23 | 1.16 | 1.22 | 1.05 |
| V-Groove | Flush | 0.30 | 0.71 | 1.21 | 1.31 | 1.22 | 1.14 | 1.10 |
| Flat | Stand-off | 0.41 | 0.92 | 1.31 | 1.23 | 1.25 | 1.32 | 1.18 |
| V-Groove | Stand-off | 0.56 | 1.11 | 1.33 | 1.31 | 1.31 | 1.23 | 1.25 |

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WARNING: This product can expose you to chemicals including formaldehyde, which are known to the State of California to cause cancer.
For more information go to www.P65Warnings.ca.gov.