The main difference between the Aerospace-grade and Industrial grade Pyrotex is the construction of the fiberglass layer and the amount of fiberglass used in this layer. See the differences and similarities below. PYROTEX AEROSPACE-GRADE BRAID FIRESLEEVE Utilizes more fiberglass in substrate and more silicone in coating Braided E-Glass substrate offers 100% glass coverage Largest sizeRead MoreThe post What is the difference between Pyrotex Aerospace-grade Braid and Pyrotex Industrial Knit Firesleeve? appeared first on Atlantex Manufacturing Corporation.