LDPE
Low-density polyethylene is a type of thermoplastic in the polyethylene family. It's formed of long chains of ethylene molecules called monomers. Its chemical formula is (C2H4)n — the same as high-density polyethylene. Their differences lie in density, as their names suggest. Once LDPE is created, it's typically flexible and transparent in color.
It's a common choice for manufacturing plastic goods like cling wrap and juice containers because it's corrosion-resistant, flexible, durable, and low-cost. On products, you'll recognize it through the number four in a triangle (usually on the bottom or side of the item).
- Juice containers
- Cling wrap and films
- Bags (like those used for groceries or food)
- Trays
- Tubing
- Prosthetics
- Ice cream lids
- Laminates
