Yes, black fiberglass tissue can be used for sound insulation. It is a popular material due to its lightweight, flexibility, and ability to absorb sound. Fiberglass is effective in reducing noise transmission by disrupting sound waves and preventing them from passing through. It is commonly used in walls, ceilings, and floors to improve acoustic performance in residential, commercial, and industrial settings. However, it's important to handle fiberglass with care due to its potential health risks and to ensure proper installation for maximum effectiveness.