Q1 : What is polystyrene? Polystyrene is an organic compound consisting of hydrogen and carbon. Polystyrene is chemically inert.
The term polystyrene foam applies to two types of materials that are produced with different production methods and technical properties but are frequently confused. One is called EPS (or Expanded Polystyrene), the other is called XPS (or Extruded Polystyrene).
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