EPS – Expanded Polystyrene
EPS stands for expanded polystyrene. This lightweight bead foam consists of fused, predominantly closed foam cells with a high air content. This structure reduces thermal conduction and cushions mechanical loads. EPS is also commonly known by the name Styropor.
What determines the suitability of an EPS shipper?
- Density and component geometry influence insulation and mechanical properties. A material property is no substitute for a packaging test.
- Wall thickness, lid fit and joints affect heat transfer through the complete shipper.
- Cooling elements and the payload need sufficient space; suitability for contact with the shipped goods must be assessed for the specific product.
How do EPS variants differ?
rEPS refers to EPS with a declared recycled content. Graphite-containing materials such as Neopor additionally influence radiative heat transfer. EPP belongs to a different family of plastics. Temperature maintenance still depends on the combination of shipper, cooling medium and packout. Disposal depends on composition, cleanliness and the available collection route.
Related terms: Neopor / Graphite EPS · EPP
Technical references:
EUMEPS: Structure and properties of EPS