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Cosmic Plastics E4905 Mineral Filled Epoxy Molding Compound, Encapsulated Grade

Category Polymer , Thermoset , Epoxy , Epoxy, Encapsulating, Glass or Mineral Filled , Filled/Reinforced Thermoset
Manufacturer Cosmic Plastics
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Cosmic Plastics E4905 Mineral Filled Epoxy Molding Compound, Encapsulated Grade.pdf
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Material Notes:
Data provided by the manufacturer.
Physical Properties Metric English Comments
Density 1.95 g/cc
0.0704 lb/in³
Apparent Bulk Density 0.780 g/cc
0.0282 lb/in³
Water Absorption 0.25 %
0.25 %
48 hrs, 50°C
Linear Mold Shrinkage 0.0010 - 0.0040 cm/cm
0.0010 - 0.0040 in/in
typical.
Mechanical Properties Metric English Comments
Hardness, Barcol 60
60
Tensile Strength, Ultimate 55.0 MPa
7980 psi
Flexural Strength 83.0 MPa
12000 psi
Flexural Modulus 14.0 GPa
2030 ksi
Compressive Strength 241 MPa
35000 psi
Izod Impact, Notched 0.270 J/cm
0.506 ft-lb/in
Thermal Properties Metric English Comments
CTE, linear 30.0 µm/m-°C

@Temperature 20.0 °C
16.7 µin/in-°F

@Temperature 68.0 °F
Alpha 1
CTE, linear, Transverse to Flow 80.0 µm/m-°C

@Temperature 20.0 °C
44.4 µin/in-°F

@Temperature 68.0 °F
Alpha 2
Thermal Conductivity 1.2561 W/m-K
8.7173 BTU-in/hr-ft²-°F
Deflection Temperature at 1.8 MPa (264 psi) >= 200 °C
>= 392 °F
Glass Transition Temp, Tg 110 °C
230 °F
Electrical Properties Metric English Comments
Electrical Resistivity 1.00e+15 ohm-cm
1.00e+15 ohm-cm
Surface Resistance 1.00e+15 ohm
1.00e+15 ohm
Dielectric Constant 4.2

@Frequency 1e+6 Hz
4.2

@Frequency 1e+6 Hz
Wet
4.8

@Frequency 1000 Hz
4.8

@Frequency 1000 Hz
Wet
Dielectric Strength 13.0 kV/mm
330 kV/in
Wet, Step by Step
Dissipation Factor 0.010

@Frequency 1e+6 Hz
0.010

@Frequency 1e+6 Hz
Wet
0.012

@Frequency 1000 Hz
0.012

@Frequency 1000 Hz
Wet
Arc Resistance 180 sec
180 sec
Processing Properties Metric English Comments
Processing Temperature 150 - 175 °C
302 - 347 °F
Molding temperature
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