Environmental Noise Control, Inc.’s STC-25 Acoustic Blankets are manufactured using state-of-the-art acoustical composite materials with an engineered design.
ENC’s STC-25 acoustic blankets are designed to provide optimum sound control for blocking and absorbing unwanted noise. In addition, they have been tested by an independent acoustical laboratory per ASTM E-90 and ASTM E-413 requirements and have a verified sound transmission loss.
ENC’s acoustic blankets are fabricated with a proprietary polyvinyl-chloride-coated outer shell, noise-absorbing and blocking material, and an engineered inner core with an X-5 septum barrier.
About the STC-25 Acoustic Blanket
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Specs
- Sound Transmission Class rated in accordance with ASTM E-413
- Flame Retardant to California Fire Marshall f-419.01 Specifications
- Length of Char: 3.5, After Flame: 2 seconds
- Working Temperature: -40°C to 93.3°C
- Oil Resistant, UV Resistant, Fiber-Free, Anti-Fungal, Self-Drying Poly-Vinyl Chloride Outer Shell with specifically developed inner core septum barrier
STC-25 Sound Transmission Loss (dB)
| % Octave Band Center Frequency | STC-25 Transmission Loss | % Octave Band Center Frequency | STC-25 Transmission Loss |
|---|---|---|---|
| 63 Hz | 8 dB | 630 Hz | 33 dB |
| 80 Hz | 10 dB | 800 Hz | 36 dB |
| 100 Hz | 11 dB | 1000 Hz | 39 dB |
| 125 Hz | 10 dB | 1250 Hz | 41 dB |
| 160 Hz | 7 dB | 1600 Hz | 41 dB |
| 200 Hz | 7 dB | 2000 Hz | 40 dB |
| 250 Hz | 11 dB | 2500 Hz | 41 dB |
| 315 Hz | 17 dB | 3150 Hz | 44 dB |
| 400 Hz | 23 dB | 4000 Hz | 46 dB |
| 500 Hz | 28 dB | 5000 Hz | 50 dB |
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Key Features
- Designed to be Set Up Close to Noise Source
- Can be Hung From Almost any Support Structure
- Portable & Easy to Install
- Modular Design to Enclose Noise Source
- Outdoor & Indoor Applications
- Quick to Assemble & Break Down
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