Polyisocyanurate (pir), extruded polystyrene (xps), expanded polystyrene (eps) or styrofoam? Polystyrene is commonly injection molded, vacuum formed, or extruded, while expanded polystyrene is either extruded or molded in a special process. Expanded polystyrene insulation, more commonly referred to as eps, is a closed cell insulation that has been around since the 1950’s.
Comparing Extruded and Expanded Polystyrene Insulation
Styrene is mainly responsible for cellular structure, and penetne is used as a blowing agent.
Each insulation has differentiating characteristics and should be optimized for the specific application.
It has the same 25 psi compression strength as extruded polystyrene. Expanded polystyrene insulation or eps insulation is manufactured using a mould to contain small foam beads. 2 lb nominal density eps (expanded polystyrene) has become a very. Popular alternative to extruded polystyrene for under slab and perimeter.
The 2 lb eps is available in any thickness, not just 1″ increments and is more economical than extruded polystyrene.
See for yourself the performance advantages of extruded polystyrene (xps) vs. This is the key difference between expanded and extruded polystyrene. Xps performs better than eps. In this piece we examine the differences between two types of insulation commonly used in mechanical insulation applications such as pipes, ducts and vessels.
It is a lighter material that absorbs moisture and has a lower mechanical resistance.
Eps is made of 98% trapped air and only 2% plastic, making it an efficient insulator with a small amount of raw material. This manufacturing process involves melting together the plastic resin and other ingredients. Difference between expanded and extruded polystyrene | compare the. Polystyrene copolymers are also produced;
In most cases, water can penetrate through the gap.
The liquid formed is then continuously extruded through a die and expands during the cooling process. The difference between expanded polystyrene and extruded polystyrene. 2 lb nominal density eps (expanded polystyrene) has become a very popular alternative to extruded polystyrene for under slab and perimeter foundation wall insulation customer projects extruded polystyrene cold storage insulation Extruded polystyrene foam (xps) insulation, which is commonly referred to as “styrofoam” insulation, is a rigid, cellular foam insulation that is commonly used on pipes, ducts, tanks, and equipment that are operating at.
It is a lightweight, rigid and closed cell insulation.
Extruded polystyrene (xps) is also a thermoplastic polymer. Xps is most commonly used as foam board insulation. In other words, it has a higher insulation performance factor, which makes it very suitable for areas that require more insulation like attics, walls and basements. This produces a closed cell rigid insulation.
Extruded polystyrene is much denser than expanded polystyrene (2.18 lbs.
Difference between expanded polystyrene and extruded polystyrene. The main difference between these two materials lies in their density. Expanded polystyrene is very versatile because it can be molded and cut into different. It is harmless, does not rot, does not mould and does not decompose, it is very versatile, withstands impacts well, has high chemical resistance, its texture and finish are made up of balls and the sizes of the plates are usually larger and white color.
The key difference between expanded and extruded polystyrene is that we produce expanded polystyrene (or eps) from solid beads of polystyrene while we produce extruded polystyrene (or xps) from solid polystyrene crystals.
However, that’s not the right term for expanded polystyrene. On the flipside, expanded polystyrene (eps) can offer better. On average for xps vs. 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.
Expanded polystyrene and extruded polystyrene are both made from polystyrene, but eps is composed of small plastic beads that are fused together and xps begins as a molten material that is pressed out of a form into sheets. These contain one or more other monomers in addition to styrene. Interestingly, a lot of times, eps is also coined as styrofoam™;
