2" x 12" x 12" Yellow Charcoal Acoustic Foam For use in vocal booths, control rooms and studios. 12 Tiles. Fire Rated. Effective against standing waves and flutter echoes in most small-to-medium sized rooms. Overall NRC: 0.65 Unlike other brands, our foam is fire retardant. SoundproofStore offers specially made foam to withstand elements like harsh, direct lighting, the physical contact of manual handling, and of course, sound waves. Unlike other brands, our soundproofing foam will never crumble or harden, so the only cleaning required is the occasional vacuuming of dust. You can trust that our foam will remain soft and in sound acoustical condition for years to come. All our soundproofing foam is cut and angled with nearly 100 percent accuracy, leaving you with clean, squared edges. Unlike other companies that manufacture irregular, jagged or mismatched edges, our foam can be aligned perfectly with the next piece to provide professional uniformity in your installation. Flammability Test Results: Class A, 25 Flame Spread Index, 250 Smoke Spread Index