In addition, POM has the ability to maintain properties at high temperatures for long periods of time, mechanical resistance to long-term stresses, and weather resistance, which make it a suitable choice for many sensitive engineering parts
It is an aromatic synthetic polymer of mono-styrene (a petrochemical material) that exists in three common types: GPPS, resistant HIPS and expanded EPS. Under ASTM standards, polystyrene is regarded as not biodegradable.
