SONEXmini™
Polyurethane Specifications
| Material: | Flexible, open cell polyester urethane foam. |
| Surface Pattern: | Sculpted surface scatters and deflects sound waves; anechoic wedges increase sound-absorbing surface area. |
| Density: | 2 lb/cubic ft |
| Tensile Strength: | 20 PSI |
| Flammability: | UL 94HF-1 |
| Flame Spread: | Natural - 95; Painted - 420 |
| Smoke Density: | Natural - 340; Painted - 300 |
| 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. | |
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Sound absorption
coefficients of SONEXmini*
1/3 octave band center frequency (Hz) |
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| 250 Hz | 500 Hz | 1K Hz | 2K Hz | 4K Hz | NRC** | |
| SONEXmini 1.0" | 0.10 | 0.23 | 0.42 | 0.67 | 0.84 | 0.36 |
| SONEXmini 1.5" | 0.25 | 0.53 | 0.85 | 0.96 | 1.06 | 0.65 |
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* Test procedure: Forty-eight square feet of material in a 6' x 8' configuration was placed flat on the floor, near but not at the center of a 17' x 20' x 15' -high reverberation chamber. The perimeter edges of the material were taped to the floor. Testing was carried out in strict accordance with ASTM C 423-77 test procedure. ** Noise Reduction Coefficient (NRC) value is reported per ASTM C 423-77 to the nearest 0.05. |
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SONEXmini™
willtec® Specifications
| Material: | Flexible, porous acoustic melamine. |
| Dimensions: | 1" (or 1.5") x 24" x 24" |
| Density: | 0.7 lbs/cubic foot |
| Tensile Strength: | 8 PSI |
| Tear strength: | UL 94HF-1 |
| Elongation: | 8% (ASTM D3574-77) |
| Flame Spread: | 5 (ASTM E84) |
| Smoke Density: | 75 (ASTM E84) |
| 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 of SONEXmini*
1/3 octave band center frequency (Hz) |
||||||
| 250 Hz | 500 Hz | 1K Hz | 2K Hz | 4K Hz | NRC** | |
| SONEXmini 1.0" | 0.17 | 0.40 | 0.72 | 0.76 | 0.91 | 0.50 |
| SONEXmini 1.5" | 0.21 | 0.61 | 0.80 | 0.89 | 0.92 | 0.65 |
|
* Test procedure: Forty-eight square feet of material in a 6' x 8' configuration was placed flat on the floor, near but not at the center of a 17' x 20' x 15' -high reverberation chamber. The perimeter edges of the material were taped to the floor. Testing was carried out in strict accordance with ASTM C 423-77 test procedure. ** Noise Reduction Coefficient (NRC) value is reported per ASTM C 423-77 to the nearest 0.05. |
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