Fire&passive Car audio solution

Fire &passive sound insulation Boyin super shield "s material is light -weight ,elastometic butyl and aluminminum constrainer -layer vibrational damper,it can follow your car whole life .with multi_layercomposite ,boyin super shiled not only reduce s the noise but also the vibration ,and it canisolate the heat outsiide the car .the biyin super shiled can easily fuse to sheet metal and other substrate ,applying with boyin shield ,it can strengthen your car.s body panel too .the materials is the base deadening of sound control ,applied with the boyin super shield reduce greatly the noise delievered from your vihicle body ,it converts the sound &vibration chergy to heat .it will increase the loss factor up to 0.47 20.c ,you can easily get more pure and quanlity music