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Durostone® EPM S7

GFK-EP

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Characteristics

  • Epoxy (EP) resin matrix reinforced with an e-glass mat
  • Good mechanical properties
  • Good electrical properties

Technical Specifications Durostone® EPM S7

Test MethodUnitGuideline Value
DensitéISO 1183g / cm31,85
Flexural strength ISO 178MPa360
Modulus of elasticity in flexion ISO 178MPa20000
Compressive strength ISO 604MPa500
Tensile strength IIISO 527MPa280
Impact strength II (Charpy)ISO 179kJ / m2100
Test MethodUnitGuideline Value
Coefficient of linear expansion IITMA (Mettler)10-6 x K-110 - 20
Temperature indexIEC 60216T.I.180
Insulation classIEC 60085/H
Test MethodUnitGuideline Value
Water absorption (4mm thickness)ISO 62% 0,2
Test MethodUnitGuideline Value
Electric strength 90°C under oil IEC 60243kV / mm13
Electric strength 90°C under oil IIIEC 60243kV/25mm70
Relative permittivity (50 Hz)IEC 60250εr5
Specific surface resistanceIEC 60093Ω1013
Specific volume resistanceIEC 60093Ω x cm1014
Comparative tracking indexEN 60112CTI400

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