How is it made?
The most commonly used type of polystyrene is expanded polystyrene. The first step of making expanded polystyrene packaging (ESP) is to expand the polystyrene pelites in a steam chamber. The heat allows the pentane gas trapped in the pelites to escape, this lets are fill the pelites. Once the process in the steam chamber is done the have expanded about 40 times their original size.
The expanded pelites are then stored in huge sacks, transported and dumped into the block mold machine. This machine steam fuses the pelites together into a massive block. The block is then cut into the shape of its ordered use. They cut the polystyrene with a copper heated wire that melts the polystyrene on contact.
Once cut and shaped, the polystyrene is sold.
The most commonly used type of polystyrene is expanded polystyrene. The first step of making expanded polystyrene packaging (ESP) is to expand the polystyrene pelites in a steam chamber. The heat allows the pentane gas trapped in the pelites to escape, this lets are fill the pelites. Once the process in the steam chamber is done the have expanded about 40 times their original size.
The expanded pelites are then stored in huge sacks, transported and dumped into the block mold machine. This machine steam fuses the pelites together into a massive block. The block is then cut into the shape of its ordered use. They cut the polystyrene with a copper heated wire that melts the polystyrene on contact.
Once cut and shaped, the polystyrene is sold.