What is Expanded Polystyrene?

About Expanded Polystyrene

Welcome to the new blog here at Eccleston and Hart Expanded Polystyrene. We’re going to be keeping you updated with the latest news and developments from the world of expanded polystyrene and all things related.

We thought we’d start at the beginning rather than jumping straight in at the deep-end. So, what exactly is expanded polystyrene?

What is Expanded Polystyrene?

You’ve probably used it without even realising what it is.

Expanded Polystyrene (or EPS) is used in:

Polystyrene Bead
Polystyrene Packaging products
Polystyrene Block, pads, cut pieces
Polystyrene Graphics, logos, letters and numbers
Polystyrene Point of display
Polystyrene Void formers
Polystyrene Bolt boxes
Polystyrene Sheet
Polystyrene Insulation

You may know Expanded Polystyrene as just Polystyrene or, more commonly, Styrofoam. Many people make the mistake of referring to Polystyrene beads as Styrofoam beads. These beads are used to fill beanbag chairs and in the production of lightweight concrete.

EPS is an extremely versatile material, which has many different uses, it is strong yet lightweight, so it provides excellent impact protection and cushioning ideal for packaging. Expanded Polystyrene has specific thermal qualities for insulation, is water resistant, environmentally friendly and recyclable.

Eccleston and Hart manufacture Polystyrene products for the Packaging, Construction, Film Exhibition, Theatre, Display, Media and Graphics Industries. We’ve been doing this for more than 50 years!

What is Expanded Polystyrene?

The technical stuff:

Expanded Polystyrene’s technical properties such as rigidity, formability and low weight means it can be used for a huge range of applications.

Thermal conductivity values range from 0.032 to 0.038 W/(m·K) depending on the density of the EPS board. The value of 0.038 W/(m·K) was obtained at 15 kg/m3 while the value of 0.032 W/(m·K) was obtained at 40 kg/m3 according to the data sheet of K-710 from StyroChem Finland. Water vapor diffusion resistance (μ) of EPS is around 30–70. Typical EPS has an oxygen index of around 18 volume %; thus, a flame retardant is added to styrene or polystyrene during the formation of EPS.

Here at Eccleston and Hart we use CAD/CAM hot wire technology to cut, shape and profile polystyrene to your particular needs. We produce large volumes of high quality Expanded Polystyrene material using our 50+ years of experience.

What is Expanded Polystyrene?

What ever industry you’re in, whether a corporate company, a small business or DIY enthusiast, we can be of service.

Please contact our sales team for further information email sales@ecclestons.com or telephone 0121 683 0300.