Bakelite® EP 8412

About
Product 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 Areas Encapsulation of electric parts, e.g. electromagnetic coil&&

Product Description
Generic环氧树脂
Material StatusCommercial: Active
FeaturesGood Dimensional Stability,Good Electrical Properties,Low Viscosity,Low contractility,Arc resistance,Heat Resistance, Good,Solvent resistance,HB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.89g/cm³ISO 1183
Apparent density0.85g/cm³ISO 60
Shrinkage rate ISO 2577
0.30%ISO 2577
0.25%ISO 2577
Water absorption rate
23℃,24hr6.0mgISO 62
Post contraction ISO 2577
0.020%ISO 2577
0.010%ISO 2577

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃4.0kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength
23℃8.5kJ/m²ISO 179/1eU

THERMALNominal valueUnitTest method
Hot deformation temperature
8.0 MPa, unannealed120ISO 75-2/C

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+12ohmsIEC 60093
Volume resistivity1.0E+13ohms·cmIEC 60093
Dielectric strength
1 mm29kV/mmIEC 60243-1
Relative permittivity
100 Hz5.50 IEC 60250
Dissipation factor
100 Hz0.020 IEC 60250
Compared to the leakage tracing index
Solution A250VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
1.50 mm, blackHB UL 94

Supplementary informationNominal valueUnitTest method
Compression molding pressure> 10.0MPa
Compression molding temperature160 to 190

MECHANICALNominal valueUnitTest method
Ball hardness
H 961/30400MPaISO 2039-1
Tensile modulus13000MPaISO 527-1-2
tensile strength55.0MPaISO 527-2/5
Bending modulus15500MPaISO 178
bending strength125MPaISO 178
compressive strength250MPaISO 604

Process Conditions
injectionNominal valueUnitTest method
Barrel rear temperature60 to 75°C
Nozzle temperature70 to 100°C
Processing (melt) temperature90 to 100°C
Mold temperature170 to 190°C
Injection pressure> 10.0MPa
Back pressure0.500 to 2.00MPa

Notes
1. Typical properties: these are not to be construed as specifications.
2. Compression
3. Injection
4. 0.079 in/min
5. short term, electrode layout P25mm/P25mm in transformer oil equivalent to IEC 60296
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