Expanded Polystyrene (EPS) is a lightweight, rigid foam material made from polystyrene beads. It is created by heating these beads, which causes them to expand and fuse together, forming a solid structure. EPS is commonly used in packaging, insulation, and construction due to its excellent thermal insulation properties and resistance to moisture. EPS is also recyclable, making it an environmentally friendly option when properly processed. It is often found in products like disposable coffee cups, protective packaging for fragile items, and as insulation in buildings. Its versatility and cost-effectiveness contribute to its widespread use across various industries.