Vehicle damping sheet is a kind of thin sheet made of damping material, which is attached to the inner side of the vehicle sheet metal during use, greatly reducing the noise of vehicle vibration. In Europe and the United States, environmental protection butyl rubber and composite metal aluminum foil are commonly used to form vehicle damping rubber material, which is called damping sheet. Damping sheet has excellent damping and noise reduction performance, because butyl rubber sheet itself It has high damping, which makes it a damping layer to reduce the vibration wave. Generally, the sheet metal material of vehicles is thin, which is easy to generate vibration noise when driving, high-speed driving and bumping. After the shock absorption and filtering of the damping rubber of the damper, the waveform changes and weakens, so as to achieve the purpose of reducing noise. It is a widely used and efficient automobile sound insulation material, widely used in the majority of vehicles Manufacturing and vehicle modification.