AlphaLinear Acoustical Foam has a unique surface pattern that is matching and seamless when installed. With a NRC rating of .70 - 1.05, AlphaLinear Foam is a powerful sound absorber that dramatically reduces echo, reverberation and standing waves in all types of facilities. AlphaLinear Foam gives you one uniform look to a treated wall and is ideal for any application where acoustics and aesthetics are both problems. AlphaLinear is available in a melamine foam version that is Class 1 fire rated or light grey.