How Strong Is Polystyrene

PropertyValueTensile Strength53 MPa (7700 PSI) ***Flexural Strength83 MPa (12000 PSI) ***Specific Gravity1.04Shrink Rate0.3 – 0.7 % (.003 – .007 in/in) ***

Does polystyrene break easily?

These products can persist in the environment for more than a million years, however, since polystyrene is not biodegradable. Though it is slow to break down chemically, Styrofoam does however fragment into small pieces, choking animals that ingest it, clogging their digestive systems.

What are disadvantages of polystyrene?

• Brittle, poor chemical resistance especially to organics.
• Susceptible to UV degradation.
• Flammable.