Polystyrene is one of the petrochemical products widely used in various industries and is produced by polymerization of styrene monomer. Expanded polystyrene (EPS) is a type of this polymer, which is characterized by an increase in volume under the influence of temperature. This expansion occurs due to the uniform distribution of a hydrocarbon agent, such as pentane, within the EPS structure. Manufacturers can expand the pellets in various shapes to produce a plastic product of a given shape.