Polyurethane Acoustic Foam

Sound-absorbing cotton is made from polyurethane foam through special processing, with a surface that can be in the shape of waves, eggshells, pyramids, mushrooms, etc. The material is black and has micro-pores inside, which provides significant sound absorption effect. It has an E1 environmental protection level, which means it can directly contact the skin without harm, and B1 flame retardancy level, which makes it self-extinguishing when away from fire. It is highly flexible, and any deformation caused by compression can quickly recover to its original state without affecting its sound-absorbing performance.