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Expandable Polystyrene (EPS) is a lightweight, rigid foam material produced from polystyrene beads that expand when heated. It is created through a polymerization process that generates a closed-cell structure, making it an excellent insulator. EPS is widely used in packaging, construction, and insulation applications due to its excellent thermal properties and durability.
| Density | 10 to 30 kg/m³ |
| Thermal conductivity | 0.030 to 0.045 W/m·K |
| Compressive strength | 50 to 300 kPa |
| Water absorption | Less than 0.5% by volume |
| Flammability rating | Class E (according to EN 13501-1) |
When selecting EPS, consider the density and thermal conductivity required for your specific application. It is important to specify the desired compressive strength and flammability rating to ensure compliance with safety standards. Buyers should also inquire about available grades and any specific certifications needed for their industry, along with the quantity required for their project.
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EPS is primarily used for insulation and packaging due to its lightweight and thermal properties.
Yes, EPS can be recycled, although the availability of recycling facilities may vary by location.
EPS offers excellent thermal insulation properties and is often more cost-effective than other materials like polyurethane.
The main concerns involve its disposal, as it can take a long time to decompose in landfills.
Yes, EPS is suitable for outdoor use, but it should be protected from UV exposure to prevent degradation.
EPS is available in various grades, which differ in density and thermal performance based on the intended application.