The GREENMAX Apolo C100 Polystyrene Compactor is the basic model of the Apolo series, it can compress bulky polystyrene waste into high-density blocks with a compaction ratio of 50: 1 . Compacted polystyrene foam is easy to store and transport. Applicable materials are EPS, XPS (extruded polystyrene) and PSP (polystyrene paper).