Cars & Driving
- A thermoplastic high-molecular-weight organic compound. In sheet form, polyethylene is used as a protective cover for concrete surfaces during the curing period, a temporary enclosure for construction operations, and as a vapor barrier. It is also commonly used for culvert pipes and in other piping systems.
- A synthetic water-resistant, flexible, and thermoplastic material which is made via the polymerization of ethylene, whose chemical formula is C2H4. It is used as an insulator and dielectric, and in containers and pipes.