It is intended that these barrier materials be used to fabricate enclosures for electrostatic-sensitive equipment and components. These barrier materials are especially formulated to prevent the build-up or retention of electrostatic potential, the objective being to maximize explosive safety, to protect miniature electronic parts, and to preclude ignition of stray flammable materials. The finished enclosure is to provide protection from corrosive environments.

Type I barrier material. Type I barrier material is intended for use for the watervaporproof electrostatic and electromagnetic protection of microcircuits, certain semiconductor devices (such as microwave diodes and field effect transistors, thin film resistors and other miniature electronic parts requiring this protection).

Type II barrier material. Type II barrier material is intended for use where transparency is required and contact with oil or grease is not contemplated. The transparent material is also intended for level C or commercial packaging use where a waterproof, electrostatic-free, barrier is needed. wraps or bags.