FsGrg [12 Sheets] Sound-Absorbing Material, Soundproofing Material, 30302.5cm, Extra Thick, Soundproofing, Soundproofing, Sound Absorption, Interior

[Sound absorption and soundproofing principles]: For example, sound emitted from porous sound-absorbing materials diffuses widely within them, and air vibrations are transmitted directly to the air within the internal bubbles. This creates viscous friction between the air and the surface of the bubbles, converting some of the sound energy into heat energy and reducing the reflected sound. Sound-absorbing materials suppress sound reflections within a room, reducing noise. These are the unpleasant echoes and noises generated by special molds for indoor use, making them an essential material for soundproofing. [Note] While sound-absorbing materials have a certain level of soundproofing effect, they must be combined with soundproofing materials to achieve a professional soundproofing effect. Therefore, soundproofing effects require professional soundproofing. [Uses]: 1. Acoustic adjustment and reverberation control for home theaters and vocal music; 2. Piano tuning and speaker adjustment; 3. Sound absorption material for studios and home studios; 4. Suitable for soundproofing windows and reducing noise. These versatile soundproofing panels make offices quieter and audio recordings clearer. They can also be used in professional studios, playback rooms, concert halls, auditoriums, churches, home theaters, vocal recordings, home studios, offices, and more. [Environmentally Friendly Materials & Safety] This soundproofing board is precision-machined to prevent balls from sticking even after prolonged use. Its high-density polyester fiber construction doubles the sound absorption efficiency and sound absorption rate of low-density materials, more effectively reducing the transmission loss of incident sound. The polyester material is also environmentally friendly and odorless. The urethane foam has excellent flame retardancy, and instead of using strong flame retardants, it uses a straight flame-retardant material to achieve this. It is safe to use in rooms where children live. [Easy Installation]: Anyone can set it up! Simply apply spray adhesive or 3M double-sided tape (sold separately) to the back of each panel and stick it in place. Note: The polyurethane sponge is shipped compressed and will recover naturally after 24-48 hours of use. If this does not work, simply soak it in water and let it dry, and the product will recover quickly. [Satisfied Purchase]: If the density is insufficient, the product will not recover after compression. If you have any problems with the product, such as an unpleasant odor, please contact customer service! We will provide a prompt response and a full refund or free replacement. Please do not rate this product as a "No Star" product.