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What is expanded polystyrene system?

Expanded polystyrene (EPS) is a lightweight cellular plastic material consisting of small hollow spherical balls that are expanded through a molding process in our factories to create a cost effective, highly efficient material used in hundreds of different applications.

What is the difference between polystyrene and expanded polystyrene?

The main difference between these two materials lies in their density. Extruded polystyrene is much denser than expanded polystyrene (2.18 lbs. on average for XPS vs. 0.93 lbs.

How does expanded polystyrene work?

First, the polystyrene beads undergo pre-expansion, in which they are expanded to give them the proper density. After aging in a storage silo, the beads are fed into a mold and injected with steam, which expands the beads once again and fuses them together.

What is expanded polystyrene in construction?

Expanded Polystyrene ( EPS ) is a lightweight cellular plastic material consisting of small hollow spherical balls. It is this closed cellular construction that gives EPS its remarkable characteristics. EPS is produced in a wide range of densities providing a varying range of physical properties.

Which is better XPS or EPS?

XPS, at about R-5 per 25 mm, has only a slightly better thermal performance than EPS. The thermal insulation performance of EPS and XPS in identical densities is quite close. However, EPS with the same level of density is less expensive.

Is Expanded polystyrene the same as extruded?

Expanded polystyrene is a type of foam made from polystyrene. It is a lightweight, rigid and closed cell insulation. Extruded polystyrene is another form of foam made from polystyrene. The trademark name for this product is Styrofoam (by The Dow Chemical Company).

Is expanded polystyrene safe?

Expanded Polystyrene (EPS) or Styrofoam, is a petroleum-based non-biodegradable foam, which the EPA and International Agency for Research on Cancer consider styrene a “possible human carcinogen” and “that such materials can have serious impacts upon human health, wildlife, and aquatic environment, and the economy.”

Is Expanded polystyrene a good insulator?

EPS (Expanded Polystyrene) Expanded Polystyrene Insulation is a lightweight insulation, made of polystyrene foam beads. EPS is 90% air because it is not very dense – the fact that it is made up of lots of small polystyrene beads means that there are lots of tiny air pockets. This is what makes it a great insulator.

Does expanded polystyrene burn?

Like practically all organic building materials polystyrene foam is combustible. However in practice its burning behaviour depends on the conditions under which it is used, as well as the inherent properties of the material. When burning, expanded polystyrene behaves like other hydrocarbons such as wood, paper etc.

Which is better EIFS or stucco?

The fiberglass layer provides more durability, even against hard blows from weather. EIFS is notably lighter than traditional stucco, however. It is 80-percent less heavy than stucco, but it has a higher R-value, coming in between 4 and 5.6, which is notably higher than the 0.20 R-value of regular stucco.

How is expanded polystyrene manufactured?

Expanded Polystyrene (EPS) Extruded Polystyrene (XPS) EPS is manufactured by expanding spherical beads in a mold , using heat and pressure to fuse the beads together. While each individual bead is a closed cell environment, there are significant open spaces between each bead

What is the difference between EPs and XPS?

EPS (expanded) and XPS (extruded) are both closed-cell rigid insulation made from the same base polystyrene resins and manufactured differently, EPS is beads that are molded or cut into various sizes and shapes while XPS is extruded sheets.

What are the different uses of polystyrene?

Polystyrene Uses & Benefits. Refrigerators, air conditioners, ovens, microwaves, vacuum cleaners, blenders – these and other appliances often are made with polystyrene (solid and foam) because it is inert (doesn’t react Safety Information. In the United States, the U.S. Answering Questions

What is expanded polystyrene (EPS) exactly?

Expanded Polystyrene (EPS) is the generic industry name used for white rigid material made from the expanded polystyrene beads . It is a lightweight, rigid, plastic foam insulating material produced from solid beads of polystyrene.