EPP ( Expanded Polypropylene, ) Foam
EPP stands for Expanded Polypropylene, and though its just another kind of packaging material, Its great for building model airplanes because, it is light, strong, and moderately flexible making it a very resilient material. Technically, its 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 foam is incredibly tough and makes durable planes. When bent,...