EPS (Expanded Polystyrene)
Expanded Polystyrene — a closed-cell rigid foam made by expansion of pre-foamed PS beads with pentane blowing agent. Density typically 10-50 kg/m³ (98% air by volume). Outstanding thermal insulation (lambda 0.033-0.040 W/m·K), excellent shock absorption, water-resistant, lightweight. Primary uses: building insulation (walls, roofs, floors), packaging (cushioning, cold chain), molded parts (helmets, coolers). Trade names include Styropor (BASF original, 1950), Neopor (graphite-enhanced), Airpop (industry collective brand).
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| ISO 1043 | INT | PS-E | — | REF | |
| 🇪🇺 | EN 13163 | Europe | EPS | — | 100% |
| 🇺🇸 | ASTM C578 | USA | EPS | — | 100% |
| 🇩🇪 | DIN 7726 | Germany | PS-Hartschaum | — | 100% |
Mechanical properties — Pro
Foam (10-50 Kg/M³)
| Property | Value | Unit |
|---|---|---|
| Density |
At 10% Deformation
| Property | Value | Unit |
|---|---|---|
| Compressive Strength |
Foam Density 15-30 Kg/M³
| Property | Value | Unit |
|---|---|---|
| Thermal Conductivity |
Volume (Long-Term Immersion)
| Property | Value | Unit |
|---|---|---|
| Water Absorption (24h) |
Service Range
| Property | Value | Unit |
|---|---|---|
| Continuous Use Temp |
Foam
| Property | Value | Unit |
|---|---|---|
| Tensile Strength |
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