MuteX Acoustic, Soundproof and Insulating Material (Black, 10 sqf. ft., 5'x2')

Superior Features-- MuteX?. allows you to - Apply MuteX?. thin, firm layer to sub-floor then easily apply finished flooring on top. Easily apply drywall on top which then lays flat on MuteX?. STC stands for "Sound Transmission Class" which is used to rate doors, windows, walls, enclosures, partitions and other acoustic barriers.

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