The service life of sound insulation felt depends on various factors, including the type of material, the operating environment, and the level of maintenance. Generally, high-quality sound insulation felt can last between 10 and 20 years-or even longer-under normal conditions. Premium sound insulation materials are typically made from high-density polyester fibers, rubber, or other composite materials, offering excellent durability and stability.
However, the lifespan of the felt can also be affected by environmental conditions. For instance, exposure to high humidity, high temperatures, or direct sunlight may cause the material to age or deform, thereby shortening its service life. Additionally, the material's performance may deteriorate due to frequent physical friction or pressure. Therefore, it is advisable to regularly inspect the condition of the sound insulation felt during use and take steps to avoid unnecessary damage.