Expanded polypropylene (EPP) over-moulded with polyurethane resin (PUR). This type of direct coating, using a rubber-like PUR with texture, is used to create tactile surfaces for automotive interiors.
Expanded polypropylene (EPP) moulded into an injection moulded PP shell. The rigid PP outer provides a visual surface that protects the EPP from indentation and provides additional rigidity.
Looking inside a typical sun visor, which contains an injection moulded PC/ABS structure, and the cavity is filled with moulded expanded polypropylene (EPP), which provides a durable and lightweight body.