Extruded Polystyrene Foam Grey Sheet

PlastockSKU: SF06F.BB1000.GRY

Thickness (mm): 100
Sheet Length (mm): 300
Sheet Width (mm): 300
Sale price£15.50

All prices Ex VAT. Shipping calculated at checkout

Estimated Delivery 1-5 Working Days


Extruded polystyrene foam is a low cost rigid foam with a very low density of 0.033g/cm³. It can be used for general modelmaking and craft applications as well as a structural core in lightweight constructions and as a dissolvable former or core.

Extruded polystyrene foam is one of the only foams suitable for hot-wire cutting, and can be quickly and accurately cut using this method as well as by hand or CNC. It can be dissolved by solvents such as acetone and styrene which allows polystyrene foam to be used either as a sacrificial core or laminated over (for example using an epoxy resin) then dissolved and removed to create a hollow structure. It can also be used in thermal insulation and buoyancy applications.

Extruded polystyrene foam is more difficult to shape by hand than polyurethane foam which cuts and shapes extremely well, making it less suitable for pattern making than PU foams

If you have a requirement for machined or finished polystyrene foam components please ask the Plastock team for more information.

Colour Grey
Density (g/cm³) 0.033
Water absorption (%) 1.5
Tensile strength (MPa) 0.6
Compressive strength (MPa) 0.3
Sheer strength (KPa) 250
Elastic modulus (MPa) 20
Tensile modulus (MPa) 22
Sheer modulus (MPa) 8
Thermal conductivity (W/(m*K) 0.033
CLTE (10⁻⁶K⁻¹) 0.07
Service temp long term max (°C) 75
Service temp long term min (°C) -50

Minimum order value excluding VAT & delivery is £25

What is the cost of delivery?

Because of the huge variation in our orders we have developed a specialised shipping calculator for clients ordering online. Once you fill out your order details and progress through to the online checkout, our calculator will automatically work out the precise shipping cost for you to check before you proceed.

What delivery methods do you use?

We have a selection of couriers suited to the size, weight and type of product you order from us. It is likely we will deliver your goods with a courier service such as Tuffnells, TNT, DHL etc. You can track your order with the shipment number, if you would like us to send you the tracking number for your order please contact us or give us a call and we can track it for you.

If you would like to specify any special delivery instructions these can be entered at the point of ordering or please give us a call once you have placed your order and we will try to accommodate your requests.

Delivery options...

  • Collection. Once your order is ready for collection, we shall call you to advise. Our collection point is open until 5pm - Monday - Friday.
  • Standard Delivery. All of our orders come with standard delivery which is typically a 1-3 working day service. Standard delivery assumes reasonable access and is to ground floor, or use of a suitable lift for anything above ground level.
  • In a hurry? We can look into premium delivery services at an extra cost. Give us a call on 01494 449 975 to find out more.
  • Installation. If required please get in touch about our installation services and how we can best support you, all with a smile!

See our shipping page for more details.

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