COMPACFOAM combines the highest compressive strength with excellent thermal insulation and low dead weight. High stiffness (2% deformation under service load) and excellent long-term stability makes COMPACFOAM a solution to many problems in insulation and lightweight applications. Available in 5 different density classes: CF100, CF150, CF200, CF300, CF400.

Request a Free Quote

Why CompacFoam?

COMPACFOAM’s innovation was to dramatically improve the performance of this well established technology, allowing it to reach considerably higher densities. These results in unique material properties combined with the safety of a time-tested and proven material.

It is a strong lightweight rigid insulation made from thermoplastic foam, based on polystyrene a polymer with a density ranging from 100 to 400 kg/m3. Its physical and chemical structure corresponds to that of the more familiar expanded polystyrene (EPS). Tiny closed-cell foam balls of less than a millimeter in diameter are welded thermally into a compact block by their cell walls.



The lightweight material for construction and insulation.

COMPACFOAM can be used in a wide range of applications where structural support and the possibility of obtaining secure fixings into the material are required. It can often be used as a replacement for timber battens in these applications, where thermal bridging is to be reduced. It is ideally suited for support for door thresholds and window installation, where it is important to minimise thermal bridging.

Material Properties

  • High compressive strength
  • Good screw pull-out resistance. Easy to drill & saw
  • Ductile material – CompacFoam can bear strains beyond 10%
  • Diffusion open – due to the oen-cell structure, the material is also slightly air-permeable
  • Resistant to freezing
  • Fire behavior – classified as Euroclass E
  • Excellent water absorption capacity – does not absorb more than 5-10% moisture
  • Applications around windows & door thresholds to reduce thermal bridging
  • Thermal conductivity: 0.0387 to 0.065 W/m.K
  • Unlimited long term stability

CompacFoam is manufactured in five density classes: CF100, CF150, CF200, CF300, CF400. The product range extends from standard panels to parts fabricated to customer specifications (dependant on the project’s requirements).

  • CF100 comes in sheet form  1170 mm x 980 mm. It is available in thickness of 50mm and 75mm.  Standard stock.
  • CF200 comes in sheet form 980 mm x 660 mm. It is available in thickness of 50 mm and 75 mm. Standard stock.
  • CF400 comes in sheet form 700 mm X 400 mm. It is available in thickness 25 mm. Standard stock.

Bespoke sizes can be manufactured. Pricing for these would be advised based on size, density and metres required. Lead times will vary for bespoke projects.