Typically, a one inch thick piece of CFOAM® carbon foam will absorb between 20-60% of a sound wave directed at it, depending on the frequency of the wave.

Increasing the thickness of the foam could yield absorption values closer to 100%, without sacrificing a large weight increase.

The acoustic properties of CFOAM® carbon foam, when combined with its other attractive properties such as fire resistance, low thermal conductivity, low density and high strength, offer a state of the art material system for many applications requiring sound absorption.