Expanded Polystyrene (EPS)
Expanded Polystyrene (EPS) is a petroleum derivative thermoplastic material. It’s very small polystyrene beads expand when heated with water vapor.
They start to swell up due to the pentane gas and then adhere to each other firmly, and they take the form of the mold they are contained. Pentane gas is replaced
by air at the end of this process. This still and dry air trapped in small closed porous particles enables EPS plates have superior thermal insulation properties. The moisture level of the blocks to be used in sandwich panels is reduced below 2% by drying in special furnaces.
Then, they are cut in desired thickness. It is the most economical and lightest product among the thermal insulation fillings.
| Expanded Polystyrene Laboratory Value | Value |
|---|---|
| Suggested Application Temperature (°C) | 75 |
| Thermal Conductivity / -10°C and density: 18 kg/m³ (l-W/mK) | 0,038 |
| Compressive Strength N/cm² | 5,9 |
| Bending Strength N/cm² | 19,6 |
| Water Absorption %5 | WL(T)5 |
| Vapour Diffusion Strength ( m ) | 20-50 |
| Fire Class | E (TS EN 13501-1) |
| Compression Creep | CC(3/4/10)10 |