Sound Seal
Notes: 100% PET felt (55% recycled), 9mm, Class A (ASTM E-84). NRC 0.75 at 9mm, tested 4'x2' Type J mounting (48x24 in = 8 sq ft single-face). Baffles are two-sided so installed sabins are higher.
NRC per ASTM C423. Data retrieved 2026-07-02 from the manufacturer source page.