Can black glass fiber cloth be used for soundproofing walls?

Yes, black glass fiber cloth can be used for soundproofing walls. It is a popular material due to its durability and sound absorption properties. The fibers in the cloth can help to dampen sound waves, reducing noise transmission. However, it's important to note that while it can reduce noise, it may not completely eliminate it. For optimal soundproofing, it's often used in combination with other materials such as mass loaded vinyl or acoustic foam to create a more effective barrier. Additionally, it's crucial to ensure proper installation and sealing to prevent sound from leaking through gaps or cracks.