Plastic #4 (LDPE) Landfill LDPE (Low-density polyethylene), is number 4-coded plastic, commonly used to make shopping bags, dry cleaning bags and flexible bottles and lids. Please recycle hard plastics labelled #4, but landfill all plastic film. Plastic film can clog up the machinery at recycling facilities which can cause equipment to malfunction, so it is not normally accepted in recycling bins. Though we previously had a program to collect it bagged in a bag, it is no longer running as there is no market for recyclers to sell the material. To learn more about plastic film’s decrease in value, see this article. Too Thin to Recycle Plastic films, such as plastic bags, plastic wrap, frozen food bags and many other plastic #4 items, are too thin to recycle with hard plastics. Pay Attention to Proper Disposal Plastic #4 is a lightweight material that easily finds its way into the environment, where it can leach toxic chemicals. Did You Know? What Plastic #4 Can Become Plastic #4 can be recycled into shipping envelopes, paneling, tiles, plastic lumber, trash can liners and trash cans.