Why is there sponge inside the tire?
2 Answers
It is a normal phenomenon. The sponge inside the tire is called "internal soundproofing foam". Noise isolation: It works by blocking external sounds, such as noise from passing vehicles nearby. It minimizes sound reflection and reduces noise transmission to the ears by converting sound energy into heat through friction with the air in the material when sound waves enter. Its main function is to absorb and reduce noise generated by internal vibrations. Temperature isolation: It can block heat transfer. The sponge helps maintain the cool air from being affected by the heat in the engine compartment, ensuring the effectiveness of the air conditioning system.
I just replaced my tires with self-healing ones. The sponge-like material inside is actually a special gel designed to repair small punctures. When you're driving, if a small nail pierces the tire, the gel activates and expands to seal the hole, preventing air leakage. This design is quite clever, originating from high-end vehicle technology upgrades, aiming to enhance driving safety and convenience. With regular tires, fixing a puncture takes time and money, but this type directly solves the problem. However, it's important to choose reputable brands during installation to avoid substandard products causing the gel to fail. After trying them out, I feel more at ease while driving, especially with less worry on highways.
