Rohacell 31 IG-F PMI Foam Core

RohacellSKU: SF77B.CB0020.WHT

Thickness (mm): 2
Sheet Length (mm): 625
Sheet Width (mm): 312
Sale price£39.90

All prices Ex VAT. Shipping calculated at checkout

Estimated Delivery 1-5 Working Days


Rohacell 31 IG-F is a high performance PMI (polymethacrylimide) foam with a very fine closed-cell structure. This closed-cell foam only takes up resin in the exposed cut cells at the surface, preventing excess resin infiltrating further into the foam and resulting in a very low surface resin consumption. When compared to closed-cell PVC foam, PMI foam has better mechanical properties (c 15% higher compressive strength), higher processing temperatures and a much lower resin consumption.

Rohacell IG-F foam is compatible with all common resin systems including epoxy, vinyl ester and polyester. It is easily machined, milled and cut using conventional tools designed for wood or plastic, and thinner sheets can be cut by hand. Radii down to twice the sheet thickness can be moulded using thermoforming at around 180°C (where the foam becomes thermoplastic).

We supply Rohacell IG-F in two densities, 31 IG-F at 32kg/m³ and 71 IG-F at 75kg/m³. The 31 is usually used with skins under 0.5mm in lightweight applications. The 71 has almost three times the mechanical strength and stiffness of the 31 and is ideal for heavier loaded panels with thicker skins such as floors, decks and chassis elements. Typical applications for this foam include aerospace, automotive, medical, marine, wind power technologies and recreation and sporting goods.

Colour White
Density (g/cm³) 0.032
Elongation at break (%) 3
Tensile strength (MPa) 1
Plate sheer strength (MPa) 0.4
Compressive strength (MPa) 0.4
Tensile modulus (MPa) 3.6 x 10
Plate sheer modulus (MPa) 1.3 x 10
Compressive modulus (MPa) 1.7 x 10
Service temp long term max (°C) 180
CLTE (10⁻⁶K⁻¹) 50.3

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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