... resistant prevent damage from rain or moisture economy SpecificationsCharacteristics:No odor and to xicity, environmentally-friendly;Light, soft, dustfree, ... , sound insulation, anti- radiation, anti- vibration, and shielding;high Adhesion Strength super Holding Power good Conductivity CTI ... the middle layers are aluminum foil (honed side), and PE, and the bottom layer is woven fabric. Melted PE ...