Quiet World logo

The ENC Quiet World STC-27 Acoustical Barrier Blankets are manufactured using state of the art acoustical composite materials with an engineered design.

Quiet World STC-27 acoustical barrier blankets are designed to provide optimum sound control for both blocking and absorbing unwanted noise.  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.

Quiet World acoustical barrier blankets are fabricated with a proprietary poly-vinyl-chloride (PVC) coated outer shell; layers of noise absorbing and blocking material; an engineered inner core with multiple X-5 septum barrier layers.

About the Quiet World STC-27 Acoustic Blanket

  • Specs

  • Sound Transmission Class rated in accordance with ASTM E-413
  • Working Temperature: -40°F to +200°F
  • Flame Resistant, Oil Resistant, UV Resistant, Fiber-Free, Anti-Fungal, Self-Drying Poly-Vinyl Chloride Outer Shell with specifically developed inner core septum barrier
  • Available in five sizes 8 feet wide by 8, 10, 12, 15, and 20 feet tall
  • Grommet and/or hook-and-loop fastening options available
  • Indoor and Outdoor use
  • Long outdoor life

STC-27 Sound Transmission Loss (dB)

% Octave Band Center Frequency STC-27 Transmission Loss % Octave Band Center Frequency STC-27 Transmission Loss
63 Hz 11 dB 630 Hz 30 dB
80 Hz 14 dB 800 Hz 31 dB
100 Hz 16 dB 1000 Hz 32 dB
125 Hz 12 dB 1250 Hz 34 dB
160 Hz 12 dB 1600 Hz 37 dB
200 Hz 11 dB 2000 Hz 41 dB
250 Hz 12 dB 2500 Hz 45 dB
315 Hz 16 dB 3150 Hz 48 dB
400 Hz 22 dB 4000 Hz 52 dB
500 Hz 26 dB 5000 Hz 56 dB