Will The Performance Of Fiberglass Sound Insulation Cotton Be Affected By Water

The performance of Fiberglass Sound Insulation Cotton will be affected when it comes into contact with water, as shown below:
The sound absorption effect decreases after absorbing water
The sound absorption principle of Fiberglass Sound Insulation Cotton is to absorb sound wave energy through the pore structure between fibers. When it comes into contact with water, the water will fill the pores, resulting in obstruction of air vibration and a significant reduction in sound absorption capacity. In particular, the absorption effect of low-frequency noise will be greatly weakened. When used in a humid environment, the sound-absorbing performance may decrease by more than 30%.
The strength and life of the material are affected
Glass fiber itself is insoluble in water, but long-term moisture will cause the binder (such as resin) between fibers to become damp and soften, resulting in a loose structure of the sound-absorbing cotton and easy damage. If the water absorption and drying cycle is frequent, the fiber may break or fall off, shortening the service life. In addition, a humid environment may also breed mold, affecting hygiene and material stability.
Therefore, Fiberglass Sound Insulation Cotton is more suitable for use in a dry environment. If it needs to be used in a humid scene, it is necessary to take precautions in advance or replace other materials.