As one of the most common materials in the world, we are surrounded by and use Styrofoam every day, often without realizing it. Packaging materials, foam cups, food trays, coolers, and toys are just some of the polystyrene products we come across. In addition to its more visible uses, polystyrene is also used in flotation, insulation, and construction devices, making it a ubiquitous material. You can take advantage of the best EPS foam in Hawaii via https://www.pacificalliedproducts.com/foam-packaging/.

There are two main types of Styrofoam, defined by the molding process, which result in slightly different structural compositions. Expanded polystyrene foam, known as EPS, and extruded polystyrene foam, known as XPS, are closed-cell foams with slightly different sensations, properties, and structures. Styrofoam material is often called Styrofoam, that's wrong. Styrofoam is a brand and type of special Styrofoam owned by the Dow Chemical Company and is primarily used as insulation.

The more common variant of the two, EPS, is manufactured by polymerization, in which a chemical reaction, a small sphere, expands significantly through heat and steam as it melts and combines to form a solid material. Therefore, EPS expansion can be up to 98 percent air, depending on the type. XPS foam is manufactured using a slightly different process. 

The polystyrene crystals are combined with other chemicals and fed into an extruder, which produces a high degree of heat and pressure, combining the material into a thick liquid mass. In this state, it is sent through a matrix that forms its shape as it expands through contact with air and chemical reactions. The two materials can be made into large sheets or blocks to make materials like insulation or packaging, or they can be pressed into shapes to make a finished product like a drinking glass.