Expandable polystyrene
(PS-E or EPS)

is a polymeric material which contains a pentane that enables foaming. EPS may contain additives which give the obtained polystyrene foam specific performance properties. Its most important components include flame retardants, which reduce thermal conductivity, lower water absorption, and external greases which facilitate processing, and colouring agents.

The EPS produced by Synthos S.A. is available under the trade names InSphere, Silver, InVento, for thermal insulation market and InPacto

for packaging market. Our extensive portfolio is the most comprehensive product range available for European customers.

Most important features


  • the most suitable product range for the construction and packaging market
  • professional service and technical advice
  • the highest quality in its class
  • product availability