There are many forms of polystyrene such as Extruded Polystyrene (XPS) and Expanded Polystyrene (EPS). Expanded Polystyrene is a lightweight cellular plastic material consisting of small hollow spherical balls, where the closed cellular structure gives EPS its remarkable characteristics. For example, once presented against a flame the EPS material melts away, and when flame is … Continue reading How Is Expanded Polystyrene Environmentally Friendly?