How to Soundproof a Noisy Car?

[Robert]

Excessive car noise is generally addressed by installing soundproofing materials, which block external noise from directly transmitting or resonating into the cabin, thereby achieving effective sound insulation. Therefore, car soundproofing involves using soundproof materials to isolate noise, acoustic materials to absorb noise, and vibration damping panels to reduce metal sheet vibrations and minimize noise. Applying sound-absorbing cotton to the engine hood provides sound insulation, heat insulation, reduces engine noise, lowers hood temperature, and protects the paint surface. Firewall soundproofing prevents engine noise from entering the cabin, while chassis soundproofing and vibration damping reduce friction noise between tires and the road, as well as resonance noise. The roof, trunk, rear lid wheel arches, and other areas should also undergo soundproofing treatment, combining vibration damping with soundproofing cotton.