How do you extrude polystyrene?

How do you extrude polystyrene?

Extruded polystyrene insulation or XPS Insulation is manufactured through an extrusion process. This manufacturing process involves melting together the plastic resin and other ingredients. The liquid formed is then continuously extruded through a die and expands during the cooling process.

Can you use Extruded Polystyrene?

It can be used for the insulation of buildings, roofs and concrete floors. Extruded polystyrene material can be also used in crafts and model building, in particular architectural models.

Is Extruded Polystyrene the same as Styrofoam?

The word Styrofoam™ is often used to describe expanded polystyrene (EPS) foam; however, ‘Styrofoam’ is actually a trademarked term for closed-cell extruded polystyrene foam made for thermal insulation and craft applications. EPS foam is the correct term for any form of expanded polystyrene.

What is the difference between expanded and Extruded Polystyrene?

Expanded polystyrene or EPS is a thermoplastic foam material that we produce from solid beads of polystyrene whereas the extruded polystyrene or XPS is a foam material that we produce from solid polystyrene crystals. This is the key difference between expanded and extruded polystyrene.

What is the difference between EPS and polystyrene?

Expanded Polystyrene. The major difference between Styrofoam and EPS foam blocks is that Styrofoam is made from extruded polystyrene (XPS) while EPS foam blocks are made of expanded polystyrene.

Are polystyrene boards good for insulation?

Polystyrene is a material with uniformly small closed cells and a smooth skin which make it suitable for a wide range of demanding insulating applications.

Is expanded polystyrene open or closed cell?

Expanded Polystyrene Insulation, more commonly referred to as EPS, is a closed cell insulation that has been around since the 1950’s. EPS is made of 98% trapped air and only 2% plastic, making it an efficient insulator with a small amount of raw material.

How do you test for polystyrene?

Polystyrene and most styrene-containing copolymers can be identified by placing a small sample in a small test tube, adding a few drops of fuming nitric acid, and evaporating the acid without having the polymer decom- pose. The residue is then heated over a small flame for approximately 1 min.