Polyethylene foam is a lightweight, durable material made from closed-cell polyethylene. It is commonly used for packaging, insulation, and cushioning due to its excellent shock absorption and resistance to moisture. This foam is available in various densities and thicknesses, making it versatile for different applications. In addition to packaging, polyethylene foam is often found in construction and automotive industries. Its insulating properties help regulate temperature and reduce noise, while its flexibility allows it to conform to various shapes. Overall, this foam is valued for its durability and protective qualities in many everyday products.