How is EPS beads expanded by the heat transfer 2019-02-25T02:40:15+00:00Leave Your Massage Your Name (required) * Your Phone Email (required) * Subject Your Message How is EPS beads expanded by the heat transfer ?Guangxing EPS Pre-Expander MachineHeat softening polystyrenePentane stored in the eps beads begins to boil and gasifyGasified pentane gas increases the pressure in the eps beads, it begins to swell