Expanded Polypropylene (EPP) is a highly versatile closed-cell bead foam that provides a unique range of properties, including outstanding energy absorption, multiple impact resistance, thermal insulation, buoyancy, water and chemical resistance, exceptionally high strength to weight ratio and 100% recyclability. EPP can be made in a wide range of densities, from 15 to 200 grams per litre by fusing individual beads together in a moulding process that results in a very strong and lightweight shape.
EPP foams offer excellent physical properties over and above other cellular foams such as Expanded Polystyrene. In applications looking for repeat performance from a very lightweight durable foam EPP is rarely surpassed. Historically the material has seen many uses within the automotive industry for its lightweight and dynamic performance in passive safety and sound deadening. Now you will come across EPP foams in domestic heat recovery units, hot water valve insulation, buoyancy and other lightweight rigid structures to name just a few.