Overview: EPS cleanroom panel features expanded polystyrene foam cores with metal or composite skins. The lightweight EPS core provides good thermal insulation (λ≈0.035 W/m·K) at low cost, while the smooth surface maintains cleanliness. However, its limited fire rating and lower structural strength restrict its use to less critical cleanroom areas, offering a cost-effective solution for general industrial or packaging cleanrooms where strict fire codes are not mandated.