Using sound insulating foam is an excellent way to create a peaceful and acoustically balanced vehicle interior. SoundSkins Global produces premium insulation materials designed to absorb noise, block vibrations, and improve overall cabin comfort. This foam can be applied to doors, floors, and trunk areas to minimize road and engine sounds while enhancing the clarity of in-car audio. ... https://soundskinsglobal.com/products/soundskins-wavy-foam-sound-absorbing-foam-kit-soundskins-global