Performance: resistance of static, electromagnetism and moisture. radiance-proof. Hermetically sealed. Tear and puncture resistance.Anti-static inner&outer layers, surface resistance 108 - 1,011ohmApplication: pack large machines, electronics & accessories, vacuum packing, telecommunication. Can be used for outdoor storage. Polymers, resins, chemical l& pharmaceuticals, dyes, pigments, animal feeds.All sizes are available in flap open, envelope, self-seal, zip lock and tridimensional styles