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Américas
EMEA
Asia Pacific

Bakelite® EP 8412

Description

Epoxy moulding compound, inorganically filled, glass fibre reinforced, heat resistant, dimensionally stable, good electric and mechanical properties, very good chemical resistance, low viscosity, UL listed (RTI 155°C) 

Application

Encapsulation of electric parts, e.g. electromagnetic coil

Typical Properties

Property Standard Value Unit Test Method
Additional Characteristic UL, LB, .5, D
Apparent Density ISO 60 0.85 g/cm³
Ball Indentation Hardness H961/30 ISO 2039/P1 400 MPa
Charpy Impact Strength 23°C ISO 179-1 eU 8.5 kJ/m²
Charpy Notched Impact Strength 23°C ISO 179-1 eA 4 kJ/m²
Compression - Moulding shrinkage ISO 2577 0.25 %
Compression - Post shrinkage ISO 2577 0.01 %
Compressive Strength Test Specimen Flat Tested ISO 604 250 MPa
Density 23°C ISO 1183 1.89 - 0 g/cm³
Dissipation Factor 100 Hz IEC 60250 0.02
Electric Strength 1mm Thickness, Short Term, Electrode Layout P25mm/P25mm in Transformer Oil Equivalent to IEC 60296 IEC 60243-P1 29 kV/mm
Flammability UL 94 UL 94 HB / 1.5mm (BK) Step/mm
Flexural Modulus ISO 178 15.5 MPa
Flexural Strength 2 mm/min ISO 178 125 MPa
Injection - Moulding Shrinkage ISO 2577 0.3 %
Injection - Post Shrinkage ISO 2577 0.02 %
Proof Tracking Index Test Liquid A IEC 60112 250 PTI
Relative Permittivity 100 Hz IEC 60250 5.5
Surface Resistivity IEC 60093 1E+12 Ohm
Temp. of Deflection Under Load HDT C-8,0 MPa ISO 75-2 120 °C
Tensile Modulus 1 mm/min ISO 527 - 1/2 13 MPa
Tensile Strength 5 mm/min ISO 527 - 1/2 55 MPa
Volume Resistivity IEC 60093 1E+13 Ohm*cm