车的声音材料的垃/车听起来隔音m

product specifications: Raw Material:75% Rubber ; 25%Aspha & 0.05MM Aluminum Size: 50CM * 80CM/pc (Acceptyour size to produce) Thickness:2 MM - 4MM (Acceptyour size to produce) Packaging: The standard packaging is15 pcs per cartons(Brown paper carton),If you need full color packaging to pack,We can help you produce it in China.The standard packaging quantity is 8 12 pcs,Of course,We according your requirement to do .The giftbox cost will be calculate for you . Application: The material with good adhesive,Please take out the paper, Then stick to site place of panel,After stick on the panel,Please compact it well. Let it stick very well. 1, Increase your audio sound pressure level (SPL),Let you get the audio compete 2,Stop rattles and vibrations from speaker and car body. 3,Stop fighting engine rumble,road and exhaust noise and buzzing vehicle parts 4,Stop the heat from engine. Storage Period: 180 Days.(The non-flammable materials goods, but not near heat sources to prevent the direct sunlight, so as to avoid deformation. ) Testing: Material:75% Rubber ; 25%Aspha & 0.05mm Aluminum Appearance: Pure aluminum ,no surface rupture, cracking Density: 1.55 g/cm3 ± 0.1g/cm3 Ash: 55% ± 10% Evaporation: ≤ 2.0% Tensile strength: ≥ 0.5 MPa Save: no bonding, damaged After the financial Appearance: no surface rupture, cracking Shear strength: ≥ 0.4 MPa Heat mobility: ≤ 10 mm (vertical and horizontal) Droop of: ≥ 10 mm without breaking down Low-temperature impact resistance: Sheet no peeling, no cracks Temperature rate:-30°C 130°C ED pollution of the film: not rust Burning: ≤ 80 mm / min Vibration: -20 ≥ 0.02 -10 ≥ 0.04 0 ≥ 0.05 2.0mm 10 ≥ 0.12 20 ≥ 0.16 30 ≥ 0.18 40 ≥ 0.08 60 ≥ 0.06