5mm/7mm OEM 3-in-1 Acoustic Composite Material Leads Automotive Sound Insulation Upgrade
Custom 5mm and 7mm 3-in-1 sound insulation composite materials composed of sound-absorbing foam, aluminum foil, and butyl rubber are widely used in automotive interior noise reduction modification in 2026. The integrated three-layer structure realizes vibration damping, sound insulation, and heat insulation functions in one, effectively solving vehicle driving noise, engine noise, and chassis vibration problems. The flexible composite material is easy to cut and paste, suitable for vehicle chassis, door panels, and engine compartment sound insulation modification. OEM customized thickness and size can meet the personalized needs of different vehicle models and engineering equipment. With excellent mute effect, strong adhesion, and aging resistance, the aluminum foil butyl acoustic composite material has become a mainstream high-efficiency sound insulation product in the automotive after-market and industrial equipment fields.
