Yes, black fiberglass tissue can be used for flooring. It is often used in commercial and industrial settings due to its durability, resistance to chemicals, and ability to withstand heavy traffic. Fiberglass tissue is a type of composite material that can be combined with resins to create a strong and stable flooring surface. However, it is important to ensure that the fiberglass tissue is properly treated and combined with the right resins to avoid any health or safety concerns.