Black fiberglass tissue, also known as black glass fiber tissue, is known for its high fire resistance. It is made from glass fibers that have been treated with a black pigment to enhance its UV resistance and aesthetic appeal. This material can withstand high temperatures without burning or degrading, making it suitable for applications where fire resistance is crucial. The specific fire resistance level can vary depending on the exact formulation and treatment of the fibers, but generally, it is rated for use in environments up to 1000掳F (538掳C) continuously. It's important to note that while it has high heat resistance, it is not indestructible and prolonged exposure to extreme temperatures can still cause damage.