Sound Absorption coefficients
SONEXclassic™
Product Specifications
| Material: | Open cell willtec® |
| Surface Pattern: | Pronounced sculpted surface absorbs sound waves. |
| Density: | 0.7 lb/cubic ft |
| Tensile Strength: | 8 PSI |
| Flammability: | ASTM E 84 Class 1 |
| Flame Spread: | Natural - 5; Painted - 10 |
| Smoke Density: | Natural - 45; Painted - 10 |
| The data and information shown are average values in test environments which may vary and do not constitute a guarantee of performance. Testing is recommended before actual use. | |
Sound absorption coefficients
Type B and A Mountings ASTM C423-90a
| 125 Hz | 250 Hz | 500 Hz | 1K Hz | 2K Hz | 4K Hz | NRC | |
| 2" Natural | 0.05 | 0.31 | 0.81 | 1.01 | 0.99 | 0.95 | 0.80 |
| 2" Painted | 0.17 | 0.33 | 0.85 | 1.03 | 1.08 | 1.06 | 0.80 |
Sound Absorption coefficients
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