LDPE (low-density polyethylene) is polyethylene with a lot of branching in its polymer chains, which produces a lower density (0.915 – 0.935 g/cm³). LDPE is flexible and tough, very resistant to chemicals, highly impervious to water vapour, odourless and taste-neutral. These properties make LDPE the preferred material for all types of film packaging.
Polyethylene, a type of polyolefin, is a thermoplastic produced through the addition polymerisation of ethylene. It has a waxy feel and before dyeing has a dull, milky colour. Polyethylene burns with a bright flame and forms drips, producing a smell similar to a candle flame.