Specifications: 1 Soundproofing Material 2 ISO9001-2008 3 Application: building materials for lowing sound level 4 PP&PET Meltblown soundproofing cotton for construction Introduction: There are three major types of sound absorbers: porous absorptive materials, diaphragmatic absorbers, and resonant or reactive absorbers. Nearly all the soundabsorbing materials designed for use in residences are porous absorptive materials.Our sond-absorbing materials belong to the first one. And these products contain BMF(Blown Melt Fuse) and structural fibers in which, BMF is made by melt blowing technology, its average fiber diameter is 2µm, and its ingredient is pp(polypropylene). Synthetic staple fiber is used for controlling the product`s width, its diameter is 25µm and its ingredient is PET(polyester) Features: v High sound-absorbing performance v Low density v Strong space-filling ability v Great compressibility v Excellent hi-temp insulation ability Usage: 1 car industry, office electronic equipments, ships, etc. 2 Home appliances like airconditioner and refrigerator; home decorating wall or roof noise and heat absorbing ; 3 entertainment places such as KTV room, recording studio, audio visual room, theatre, TV broadcaster and radio station. 4 The noise dealing in laboratory and piano room. 5 The sound sbsorb in pipe and elevator shaft. 6 Instruments like in factory, machine room and air-condition system. --Packing-- Meltblown soundproofing cotton for construction