Polycrystalline mullite fiber is a type of polycrystalline alumina fiber, with an Al2O3 content ranging between 72%-75% in the fiber. Generally, when the Al2O3 content exceeds 80%, it is referred to as polycrystalline alumina fiber.
Relevant products include: polycrystalline mullite fiber cotton, polycrystalline mullite fiber faced blocks, polycrystalline mullite fiber boards, polycrystalline mullite fiber shapes, polycrystalline mullite fiber felts, polycrystalline mullite fiber mats, polycrystalline mullite fiber modules, high-temperature fiber paper and seals, composite fiber prefabricated blocks, polycrystalline mullite fiber electric heating modules, high-temperature binders, etc.