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Sumitomo Bakelite North America E 2748A Short Glass Fiber Reinforced Epoxy

Category Polymer , Thermoset , Epoxy , Epoxy, Molded, Glass Fiber Filler , Filled/Reinforced Thermoset
Manufacturer Sumitomo Bakelite North America
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Sumitomo Bakelite North America E 2748A Short Glass Fiber Reinforced Epoxy.pdf
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Material Notes:
E 2748A is a glass reinforced epoxy molding compound, with good impact strength combined with soft flow for the encapsulation of devices requiring high quality and thermal shock resistance.Information provided by Sumitomo Bak North America, Inc.
Physical Properties Metric English Comments
Bulk Density 0.700 g/cc
0.0253 lb/in³
ASTM D1895
Density 1.78 g/cc
0.0643 lb/in³
ASTM D792
Water Absorption 0.20 %

@Temperature 50.0 °C,
Time 173000 sec
0.20 %

@Temperature 122 °F,
Time 48.0 hour
ASTM D570
Linear Mold Shrinkage 0.0040 - 0.0060 cm/cm
0.0040 - 0.0060 in/in
ASTM D955
Mechanical Properties Metric English Comments
Tensile Strength at Break 76.0 MPa
11000 psi
ASTM D638
Flexural Strength 142 MPa
20600 psi
at rupture; ASTM D790
Flexural Modulus 12.4 GPa
1800 ksi
ASTM D790
Compressive Strength 210 MPa
30500 psi
ASTM D695
Izod Impact, Notched 0.290 J/cm
0.543 ft-lb/in
ASTM D256
Thermal Properties Metric English Comments
CTE, linear, Parallel to Flow 17.0 µm/m-°C
9.44 µin/in-°F
ASTM E831
Deflection Temperature at 1.8 MPa (264 psi) 250 °C
482 °F
Post Baked; ASTM D648A
Electrical Properties Metric English Comments
Dielectric Constant 4.5

@Frequency 1.00e+6 Hz
4.5

@Frequency 1.00e+6 Hz
wet; ASTM D150
Dielectric Strength 14.2 kV/mm

@Frequency 60.0 Hz
361 kV/in

@Frequency 60.0 Hz
short time, dry; ASTM D149
Dissipation Factor 0.010

@Frequency 1.00e+6 Hz
0.010

@Frequency 1.00e+6 Hz
wet; ASTM D150
Arc Resistance 180 sec
180 sec
ASTM D495
Descriptive Properties Value Comments
Color Black
Form Granular
Molding Method Compression
Transfer
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