- Polyester fiber board is made of 100% polyester fiber cotton, which is high-temperature agglutinated and pressed by low melting fiber. Polyester fiber cotton is divided into thick fiber and thin fiber. Thin fiber is known as memory foam, and thick fiber is a kind more elastic mainly used as sofa and mattress fillings. It seems like texture wool feelings after high-temperature press.
- Content of formaldehyde is very low after not using rubber products in our whole procedure, to completely reach the international formaldehyde standard. Lee-Polyester fiberboard is a material used by large-scale and high-standard acoustic engineering projects at abroad and home, with strict standards and test effects on its acoustic data and construction process methods. It is excellently friendly to the acoustic design, and thus can be directly inserted into the acoustic design software to calculate the reverberation of the whole room.
- The sound absorption characteristics of polyester fiberboard are very excellent. It comes with a high-frequency absorption coefficient of 2000Hz in the wall, and the absorption coefficient of low frequency is increasing as the thickness of the product cavity increases. The installed cavity can increase from 50mm to l00mm, 150mm, and 200mm, and its low-frequency sound absorption coefficient will increase significantly along with the cavity depth.
- When the product cavity is 200mm, the sound absorption coefficient is high from the entire test frequency range of 100 to 5000 Hz, used as full-band sound-absorbing material. LEEDINGS product’s sound-absorbing coefficient can reach above 0.9 in performance.
