Material incorporates an exclusive non-woven structure that produces a more breathable fabric without sacrificing barier durability or integrity. The best available choice for clean rooms, and other applications where low linting is required. POLY-COATED TYVEK® is a standard Tyvek® which has been coated with 1.25 mils of polyethylene, offers excellent splash protection against many inorganic acids, bases and other liquid chemicals.