Basically polystyrene is light weighted and a versatile creation. Normally two types of polystyrene are available in market which is considered best. These include expanded Polystyrene and extruded Polystyrene. The properties of both the foam types are similar but the expanded Polystyrene foam is normally common and is more loveable among people.
Weight of foam
The foam contains about 2 to 4 percent of polystyrene. There is also a presence of air in form and its range is from 96 to 98 percent. Such packaging materials is light weighted and is normally inexpensive. Normally the weight of large Polystyrene balls is 15 to 30 kg per cubic meter. Expanded Polystyrene is also known as large polystyrene balls. The size of large polystyrene balls is large and it can be easily recycle and reused. The basic properties of polystyrene balls do not change with time.
Extruded Polystyrene is made of up chemical composition. The foam produced in such a way contains small air pockets. The small polystyrene balls are available in different color ranges such as yellow, green and pink. It can be used for different purposes. It is versatile in nature and can be easily available in low prices.