Is Tire Soundproofing Cotton Effective?
2 Answers
Adding soundproofing cotton to a car is useful, with the following effects: it allows you to maximize the comfort and quietness of the driving environment. The functions of soundproofing cotton are as follows: 1. After soundproofing the doors, the hollow cavities inside the doors are effectively filled, making the sound of closing the door extremely dull and heavy, changing from a "clang" to a "thud," which sounds extremely pleasant, eliminating the previous tinny noise. 2. Reducing and effectively alleviating metal fatigue in the chassis, extending the vehicle's lifespan: Metal fatigue occurs due to the uneven structure inside the metal, causing an imbalance in stress distribution, with certain areas becoming stress concentration zones. Additionally, there are many tiny cracks in the defects within the metal. Under continuous force, these cracks grow larger, reducing the parts of the material that can transmit stress until the remaining parts can no longer bear the load, leading to complete failure of the metal component. 3. Excellent waterproof performance, preventing sheet metal corrosion: The waterproofing of economy cars is generally poor. If you disassemble the door immediately after washing the car or after rain, you can often clearly see water droplets and traces inside the door, which sometimes take days to dry, leading to rusting of the door sheet metal over time. After soundproofing the doors, the soundproofing cotton adheres directly to the door metal, utilizing its excellent waterproof performance to effectively prevent moisture from contacting the door sheet metal, thus providing anti-rust benefits.
The purpose of tire sound insulation foam is to reduce road noise while driving. Having driven different car models, I find the effect quite tangible. During installation, ensure the foam sheets fit snugly against the inner tire wall and avoid blocking the valve stem, as this could affect tire balance and safety. The cost is very low, just a few dozen yuan, and you can either buy it online and install it yourself or ask an auto repair shop for help. However, the effect isn't a cure-all—wind noise remains loud at high speeds, though tire noise is significantly reduced, especially noticeable on quiet roads. Remember to choose thicker branded foam, as thinner ones may compress and lose effectiveness. Long-term, the foam sheets may risk peeling off, so regular checks are needed to prevent imbalance. Overall, it's worth trying, especially for older cars with significant noise, as it improves driving comfort.
