Specifications: Type: Thermal mousse of closed cells of soundproof insonation with high waterproof density Material: Foam Flexion resistance: Strong Compression resistance: Strong Size: 100cm x 50cm/ 39.37x19.69x0.39 inches (L * W * t) Thickness: 3mm/6mm/10mm (optional) Color: Black Characteristics: 1. This product is delivered with a strong adhesive, at room temperature greater than 0 degrees without additional heating can be directly stuck. The higher the exterior temperature of the dough, the more the solid construction cannot be removed after the dough is extremely strong! 2. Noise experts recommend doing sound insulation at the same time, do not forget the door of vibration, in the dough before cotton sound can be posted before a few vibration plates are excellent, general needs From all the sedan to three cars of about 10 meters. 3. Special note: if owners such as engine noise, you want to completely reduce engine noise alone on the hood on this cotton sound insulation point is not as simple as engine noise cotton recommended to hood and U-Slot noise effects should use sound insulation in cotton aluminum leaf + aluminum plate aluminum shock butyle rubber shock paste (approximately 18-25), engine noise is a very complex sound engineering system, You must make wings, firewall, dashboard in the shape of a slit sound insulation engineering! Note: Before sticking, please clean the place where you stick. Packed Included: 1 x soundproofed insulation foam