Product detail
EPS with graphite for improved insulation efficiency. Our grey EPS is available with and without flame-retardant.
CIRCULUM® Grey grades is an expandable polystyrene grade, containing graphite, suitable for the production of light and heavy insulation boards or shape moulding. These grades offer enhanced insulation performance through the addition of graphite during production, which also gives the beads their characteristic grey colour.
The range also includes standard grey grades for components and packaging solutions.
Documents
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CIRCULUM® Grey
Applications
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CIRCULUM® Grey
Circulum® grades are engineered to move through many lifecycles. Produced from expandable polystyrene that becomes 98% air during expansion, the material uses resources efficiently while delivering reliable insulation, protection, and formability. It can be recycled repeatedly and adapted to diverse applications, supporting a circular economy through practical, scalable material behaviour.
Some CIRCULUM® Grey grades are also available with flame-retardant properties. These grades combine the insulation efficiency of graphite-enhanced EPS with fire-performance characteristics required in more demanding building applications. This makes them a relevant choice when both thermal efficiency and compliance matter.
| Product | Flame Retardant |
Block Moulding |
Shape Moulding |
Insulation Performance |
Bead Size Range (mm) |
Usual Density Range (kg/m³) |
% Recycled |
|---|---|---|---|---|---|---|---|
| Grey grades | |||||||
| G-510 |
++ |
0.8 - 1.7 | 15-25 | ||||
| G-510 CR100 |
++ |
0.8-1.6 | 15-25 | ||||
| G-710 |
++ |
0.7-1.1 | 15-25 | ||||
| Grey flame retardant grades | |||||||
| GF-514 |
++ |
0.8-1.6 | 15-25 | ||||
| GF-714 |
++ |
0.7-1.1 | 15-25 | ||||
| GFS-514 |
++ |
0.9-1.8 | 15-25 | ||||
| GFS-714 |
++ |
0.6-1.0 | 20-40 | ||||
Versatile white EPS grades developed for efficient processing and reliable results in packaging, shape moulding and insulation, where consistency and performance matter every day.
Flame-retardant grades improve fire performance by reducing ignitability. They are mainly used in building insulation and other applications with stricter fire-safety requirements.
Graphite-enhanced EPS, including flame-retardant options. Delivers higher insulation efficiency, enabling thinner constructions, reduced material use and a lower overall footprint in building applications.
EPS raw material made from recycled content - for a lower carbon footprint and reduced reliance on virgin fossil materials.
When standard EPS is not sufficient, we offer EPS grades with properties designed for specific purposes.
Certified Balanced lowers carbon footprint while maintaining premium EPS performance, ideal for food, pharma and other applications where recycled content is not yet viable.
Derived from biopolymers developed from organic materials, BioFoam® can be used for several purposes and even made into soil.