Styrene is primarily used in the production of polystyrene plastics as well as many other specialty plastics and synthetic rubbers. Polystyrene is produced by free radical vinyl polymerization from the styrene monomer. Polystyrene has a low cost, low density, clarity, and dimensional stability. This material comes in two forms; crystal polystyrene and high impact polystyrene. Polystyrene is used in applications such as petri dishes, sterilization trays, and pipettes.