Expanded polystyrene is a commonly used material in construction, packaging, and insulation due to its lightweight and insulating properties. It is also known as EPS, but there are other synonyms for this material such as foam board, styrofoam, or insulation foam. Other relatable terms include expanded foam, extruded polystyrene, and foam insulation. Expanded polystyrene is used in various applications such as building insulation, thermal insulation, packing materials, disposable food plates, and coffee cups. This popular material boasts remarkable strength, durability, and versatility, making it an optimal choice for various industries.