Sound insulation cotton is made of polyester sponge material. It is environmentally friendly, natural, healthy, formaldehyde-free, and can directly contact human skin. It is not allergic. Acoustic environmentally friendly wave cotton is made of polyurethane sponge. It can be in direct contact with human skin without any side effects, colorless and odorless, and will not release pollutants. It is the most natural sound absorbing material. It is better than glass fiber when used as internal partition or wall sound absorbing and soundproofing. Environmentally friendly and sound absorbing, and 100% recyclable, its smoke density and toxic gas are lower than national environmental standards. It is widely used in the field of building decoration in Europe, America, Korea and Japan, and it is noise-proof and noise-reducing.
Sound absorption principle:
The pores and bubbles with a large amount of internal and external communication can cause air vibration in the gap when the sound wave is incident thereto. Due to the viscous resistance of the air, the friction between the air and the wall of the hole causes a part of the acoustic energy to be converted into heat energy to be consumed. In addition, when the air is adiabatically compressed, heat exchange occurs between the air and the wall of the hole, and a part of the sound energy is converted into heat energy due to heat conduction.
Sound insulation cotton is widely used in control room, mixing room, listening room, piano room, home theater, acoustic laboratory, music studio, audition room, surveying room, KTV room, star hotel factory building silencer and building silencer Engineering, generator silencer, air conditioning, automotive (heavy machinery) industry and other industries and places.
Package List: 12pcs/ 24pcs * Acoustic Foams (optional)
Light-colored sponges are prone to oxidative discoloration, especially white, we recommend dark sponges