Thermal conductivity is a key indicator to measure the material’s ability to prevent heat transfer. XPS foam has extremely low thermal conductivity because its unique molecular structure and closed-cell morphology can effectively limit the occurrence of heat convection and heat conduction, which gives it excellent thermal insulation performance.

The density of XPS foam is generally less than 50kg/m³, which makes it very light and easy to handle and install. This is very beneficial for applications that need to reduce their own load.

Due to its uniform and dense closed-cell structure and the unique molecular chain arrangement formed during the production process, this high strength enables XPS foam to withstand large loads without deformation.

The closed-cell structure of XPS polystyrene foam is the key to its excellent moisture resistance. The closed-cell structure makes it difficult for moisture to penetrate into the foam, thus effectively preventing moisture absorption. This feature is a great advantage in applications with high humidity or contact with water.

Polystyrene foam has good resistance to most chemicals, thanks to the chemical structure of polystyrene itself and the stabilizers and antioxidants added during the production process. It is not easily corroded and degraded by common chemicals such as acids, alkalis, salts and organic solvents. This allows XPS foam to maintain stable performance under various complex environmental conditions.