What is Expanded Polystyrene?

Expanded Polystyrene (EPS) is a rigid, closed cell, plastic foam material.

EPS can be molded into a variety of shapes - large blocks that can be cut into sheeting for roofing, insulation, detail work on houses and buildings, signage, floatation etc., or  molded into specific shapes based on the customers needs, such as fish boxes, insulated concrete forms etc.

EPS is totally recyclable.  EPS does not contain ozone depleting CFC's or HCFC's.

What is Styrofoam?

A common misunderstanding about Expanded Polystyrene (EPS) is that it is referred to by many people as Styrofoam.  Styrofoam is actually a trademark for a product that is manufactured by DOW Chemical Company. Styrofoam board and EPS board  have two completely different manufacturing processes.

The most notable difference is that EPS does not and has never used CFC's or HCFC's, which are harmful to our ozone layer, for the processing of making rigid insulation.

In producing the product, Styrofoam is an extruded foam board, whereas Expanded Polystyrene is a molded cellular board.