Thickness
    Thickness
    default
    1"
    1 1/2"
    Color
    Color
    Gray
    Black
    Sound Absorbed
    Sound Absorbed
    65%
    85%
    Noise-Reduction Coefficient (NRC)
    Noise-Reduction
    Coefficient (NRC)
    0.65
    0.85
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    Specifications Met
    Specifications Met
    ASTM C423
    ASTM E84 Class A
    ASTM E90
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    14 Products