Manufacturing Of Expanded Polystyrene Foam

Polystyrene foam is an extremely widely utilized material throughout the world and we are constantly surrounded and use it on a daily basis frequently without even realizing it.

Packaging materials, foam cups coolers, food trays, and toys are only some of the products made of polystyrene that you will see. Beyond the most obvious uses polystyrene can also be found to make flotation apparatus, for insulation, and in construction, making it a ubiquitous product. For more details, you can also search online for eps foam in Hawaii at

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Two main kinds of polystyrene foam can be determined by their forming processes which result in slightly different structures and compositions.

Expanded polystyrene foam, also known as EPS, or extruded Polystyrene foam, commonly referred to as XPS are both closed-cell foams with distinct textures as well as characteristics and forms.

Polystyrene products are frequently called Styrofoam but this is not true. Styrofoam is the brand name for an exact kind of polystyrene foam that is owned by Dow Chemical Company. Dow Chemical Company, is predominantly used for insulation.

The most popular of the two is made by polymerization through chemical reactions, tiny beads expand tremendously due to steam and heat until they melt, and then fuse into a solid substance comprised of tiny pieces of foam. Because of this expansion EPS can contain as much as 98 percent air according to the kind. XPS foam is produced by different methods. 

Polystyrene crystals get mixed with other chemicals and then put into an extruder that generates high levels of pressure and heat, which create the form of a solid-liquid mass. When the material is at this stage it goes through dies which mold its form as it expands due to contact with the air or chemical processes.