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.
Acoustical Performance Data
Overall NRC: 0.80
To view the full PDF report of our acoustical test results, see the resources section (below).
Flammability Test Results
Classification: Class A
Flame Spread Index: 25
Smoke Developed Index: 250
Acoustical Performance Data: NRC Ratings for Wedge Foam
Leading Competitor Comparison: Acoustic Foam Product Comparisons
Flammability Test Results: ASTM-E84
Physical Data Sheet: Acoustic Foam
Frequently Asked Questions: FAQ
How To: How To Use Spray Adhesive with Acoustic Foam (PDF)