Sound Damping and absorbing Material

product specifications: Raw Material:Pure Butyl + 0.05 Aluminum + 3MM rubber Surface:Smooth Size: 50CM * 80CM/pc (Acceptyour size to produce) Thickness:5MM (Acceptyour size to produce) Popular Market: Europe market & America market Southeast Asia (Thailand;Indonesia;Philippine;Malaysia……) South Asia (India;Sri Lanka) Middle East 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 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: 300 Days.(The non-flammable materials goods, but not near heat sources to prevent the direct sunlight, so as to avoid deformation. ) Testing: Material:Pure Modify Asphalt Appearance: no surface rupture, cracking Density: 1.45g/cm3 ± 0.1g/cm3 Ash: 45% ± 10% Evaporation: ≤ 1.5% Tensile strength: ≥ 0.6 MPa Save: no bonding, damaged After the financial Appearance: no surface rupture, cracking Shear strength: ≥ 0.5 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:5°C 100°C ED pollution of the film: not rust Burning: ≤ 80 mm / min Vibration: -20 ≥ 0.04 -10 ≥ 0.06 0 ≥ 0.08 2.0mm 10 ≥ 0.13 20 ≥ 0.16 30 ≥ 0.14 40 ≥ 0.08 60 ≥ 0.06