PU foam

PU foam has the special concave-convex body and honeycomb curved surface structure. The honeycomb-shaped and hole-opened curved surface of the material, can cause the sound wave repeated reflection weaken and reduce the noise surface of the material, can cause the sound wave repeated reflection weaken and reduce the noise transmission .Many kinds of functions such as heat prevented, noise reduction and sound-absorption . These foam products are widely used in air , aquarium ,cooling tower and so on .