Crest also known as sound-absorbing cotton wave cotton, cotton peaks, eggs, such as cotton, is a sound-absorbing effect is very significant sound-absorbing material, interior noise, echo can be absorbed, greatly improving indoor quality. Material installation is very simple, all-purpose adhesive water or use double-sided adhesive paste can be. Many places do sound-absorbing system is the material of choice. Crest cotton eggs cotton Product parameters: 1: Common specifications: 2 m * 1 m * 30mm (a 2 square meters) 2: Specification: 2 m * 1 m * 50mm (a 2 square meters) 3: Other Specifications can be customized. (300 square meters or more custom, usually 3 to 4 days can be produced) 4: Material: Polyurethane 5: Shape: Flake (surface relief type) 6: Color: Black 7: Packaging: plastic tape 8: Environmental level: e1 level (one can direct contact) 9: Fire Level: b1 level (from the fire self-extinguishing) 10: sound-absorbing coefficient: 0.9 (a sound-absorbing effect) 11: The main function: decorative and acoustic treatment crest cotton eggs cotton acoustic insulation works: acoustic principle: cotton known as wave crest cotton eggs cotton. Eggs cotton is processed through the device special form concave side of a wave-shaped sponge, which is full of small internal voids and semi-open pore structure can absorb a lot of energy incident acoustic attenuation of sound waves play a role in reducing indoor reflection sound interference and response, improve the purity of sound, is a high-performance sound-absorbing material drop bath products. Features: peak sound-absorbing cotton sound-absorbing effect is remarkable, product E1 class environmental rating can be in direct contact with the skin, from the fire self-extinguishing flame retardant B2 level. High flexibility, any squeeze can be quickly restored to their original and does not affect the performance of the product itself. Easy to transport, simple to install indoor wave absorbing cotton, without the professional construction and specialized tools can own line installation, the overall cost is very low, and also has a good decorative effect. Crest absorbing cotton can be very effective to eliminate noise and improve sound quality and allows more comfortable indoor wave absorbing cotton installation, sound more perfect. Crest absorbing cotton because most interior have not been noise, acoustic treatment, so there will be a lot of noise, echo in the room, his voice has become less clear, will make people feel very comfortable. A case like this you need to do the acoustic treatment, sound-absorbing material can absorb noise to improve sound quality, acoustic treatment There are many ways wave absorbent cotton, with a peak acoustic sound-absorbing cotton to make the most simple and effective method. Description: Crest, also known as sound-absorbing cotton eggs cotton, cotton peaks, is made of polyurethane foam specially processed to be wave-absorbing cotton use, the product reached E1-class environmental protection, fire protection class B2, waterproof, moisture, corrosion and mildew. Surface is wavy, common specifications for 2M * 1M thickness of 30mm and 50mm, made of black interior was porous, rational design can achieve a good sound-absorbing effect. Shaoyang wave absorbing cotton | wave absorbing cotton effect | Silent King (high merchant) provided by the Shenzhen Municipal Building Materials Co., mute king. Shenzhen mute King Building Material Co., Ltd. (www.geyinmian1.com) is specialized in "insulation board, cotton insulation, insulation blankets, insulation pads, acoustic soft bag, environmental sound-absorbing cotton, polyester fiber," the business, companies adhering to the "integrity management , the intentions of service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Liang Tao.