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Durostone® UPM S2

Durostone® UPM S2 is a fiber-reinforced plastic with very high mechanical properties. This plastic spheric a defined flammability. The fiber reinforcement is carried out with a glass mat or glass fabric.


Standard sizes


Type acc. to standard (EN 60893)

UP GM 205

Thermal endurance (IEC 216)



Technical ValuesTest methodUnitUPM S2
Fibre reinforcement--mat/fabric
Specific gravity-g/cm31,95
Standard colour--white
Previous quality---
DIN 7735 type--HM 2472
EN 60893/IEC 893 type--UPGM 205
Nema-LI.1 designation---
NFC 26153/26151 StandardISO 1183 meth 1g/cm3VmP3
Bending strength (perpendicular)ISO 178MPa350
Modulus of elasticity (perpendicular)ISO 178MPa18000
Compressive Strength (perpendicular)ISO 604MPa480
Impact strength (parallel)ISO 179kJ/m2200
Tensile strength (parallel)ISO 527MPa220
Electric strength at 90°C (perpendicular)IEC 60243kV/mm12
Breakdown voltage at 90°C (parallel)IEC 60243kV/25mm75
Comparative tracking indexIEC 60112CTI600
Tracking and erosion resistanceIEC 60587 meth 1--
Thermal conductivityISO 8302W/mK0,35
Thermal enduranceIEC 60216T.I.155
Insulating classIEC 60085-F
FlammabilityIEC 60707-FVO/>3mm
Coefficient of linear expansion (parallel)-10-6K-110-20

Remarks: Property variation possible in the area of 50mm, average - not guaranteed technical values. Tol. accord with EN 60893-3-5. The data mentioned are average values. We cannot accept any responsibility for their accuracy.

Product programme

Our range of Durostone® FRP-sheets:


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Rainer Sanders
General Manager Sales & Marketing


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