For maximum sound absorption, the 4 inch wedge foam is the product for the job. Excellent at absorbing low frequency waves, it provides maximum deadening capability and functions in the largest areas like gyms or concert halls.
To view the full PDF report of our acoustical test results, see the resources tab.
Overall NRC: 0.80
Flammability Test Results:
25 Flame Spread Index
250 Smoke Spread Index