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Sumitomo Bakelite North America EM 7302 Hardware Grade 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
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Material Notes:
Long fiberglass reinforced epoxy molding compound which features high strength and toughness for structural components. This compound is designed for applications requiring Mil-M-46069 certification.Information provided by Vyncolit, a Sumitomo Bak Group
Physical Properties Metric English Comments
Density 1.85 g/cc
0.0668 lb/in³
Relative Density; ASTM D792
Linear Mold Shrinkage 0.0010 cm/cm
0.0010 in/in
Compression Molding; ASTM D955
Mechanical Properties Metric English Comments
Hardness, Rockwell M 105
105
ASTM D2583
Tensile Strength at Break 138 MPa
20000 psi
ASTM D638
Flexural Strength 345 MPa
50000 psi
At Rupture; ASTM D790
Flexural Modulus 24.0 GPa
3480 ksi
ASTM D790
Compressive Strength 255 MPa
37000 psi
ASTM D695
Izod Impact, Notched 16.0 J/cm
30.0 ft-lb/in
ASTM D256
Thermal Properties Metric English Comments
CTE, linear, Parallel to Flow 12.0 µm/m-°C

@Temperature 20.0 °C
6.67 µin/in-°F

@Temperature 68.0 °F
ASTM E-831
Thermal Conductivity 0.420 W/m-K
2.91 BTU-in/hr-ft²-°F
ASTM C-518
Deflection Temperature at 1.8 MPa (264 psi) >= 250 °C
>= 482 °F
Post Baked; ASTM D648A
Electrical Properties Metric English Comments
Dielectric Constant 5.8

@Frequency 1e+6 Hz
5.8

@Frequency 1e+6 Hz
Dry; ASTM D150
Dielectric Strength 12.8 kV/mm
325 kV/in
60Hz, Step-by-Step, wet; ASTM D149
Dissipation Factor 0.017

@Frequency 1e+6 Hz
0.017

@Frequency 1e+6 Hz
Dry; ASTM D150
Arc Resistance 120 sec
120 sec
ASTM D495
Descriptive Properties Value Comments
Color Black, Natural
Form Coarse Flake - 1/2" Chop
Main Filler Glass Fiber
Molding Method Compression, transfer
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