EPP is a special high-performance foam material of foamed polypropylene; While "foam" is a general term for a class of porous plastic materials (including EPS, EPE, PUR, etc.), the two are species rather than parallel.
EPP is the abbreviation of Expanded Polypropylene, which is a closed cell foamed plastic made by physical foaming process with polypropylene resin as the base material.
In the field of automotive lightweighting and new energy battery safety, EPP materials have become a focus of the industry due to the implementation of new regulations in 2026.