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  • Expanded polystyrene (EPS) is a rigid and tough, closed-cell foam. It is usually white and made of pre-expanded polystyrene beads.
  • The EPS beads are the expanded form of polystyrene granules which are produced indigenously and are available commercially as hard translucent glass-like beads with diameter ranging from 0.6 to 2.5 mm.
  • XPS (extruded polystyrene) is also plastic foam based on polystyrene that is formed by adding gas during extrusion not by expanding beads containing gas; which is how EPS is formed.
  • During pre-expansion process the raw materialís compact beads turn into cellular plastic beads with small closed cells that hold air in their interior.
  • EcoBead is a high performance, injected, blown bead EPS insulation system that can be used in domestic, commercial and industrial cavity wall constructions as a full fill insulation solution.
  • To find a new technology for control of immature stages of mosquitoes, the expanded polystyrene (EPS) beads were evaluated in the laboratory for mosquito control.
  • EPS beads not only prevent oviposition but also kill the immature by forming a thick blanket on the water surface.
  • The suspension process is common, especially in the production of expandable beads.
  • EPS beads generally are processed in one of three ways, (1) gravity- or air-fed into closed molds, then heated to expand up to 50 times their original volume; (2) pre-expanded by heating and then molding in a separate processing operation; and (3) extruded into sheets.
  • The basic term "fusion" refers to the expansion of eps and the adhesion of beads forming a structurally solid pattern.
  • The Australian market for EPS is supplied by local production and by imports from a number of countries. The main sources of imports currently are Korea, Malaysia and Taiwan. Smaller quantities are imported from China, Indonesia, Singapore and Thailand.

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