Some sound-absorbing panels on the market are made by installing a rubber layer, vibration damping material, or sound insulation felt between two boards. While this method can improve sound insulation to some extent in the short term, its effectiveness gradually decreases over time. As is well known, materials like rubber age slowly in the air, gradually hardening and losing elasticity, thus causing a gradual decrease in sound insulation over time. Furthermore, this method of installing a rubber or sound insulation felt layer between two boards is very expensive.
A superior sound-absorbing panel is made by laminating a layer of a new polymer material between two boards using a special process. The performance of this material remains unchanged throughout its lifespan, maintaining its sound insulation effect for at least 50 years. Similarly, Zhilv acoustic sealant used to seal gaps in walls also maintains its viscoelasticity for life, never cracking or deforming, and its sound insulation effect will never diminish.
