Sumitomo Bakelite North America E 3812M-1 Mineral and Glass Filled Electrical Encapsulation Grade Epoxy

Category	Polymer , Thermoset , Epoxy , Epoxy, Encapsulating, Glass or Mineral Filled , Filled/Reinforced Thermoset
Manufacturer	Sumitomo Bakelite North America
Trade Name
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Sumitomo Bakelite North America E 3812M-1 Mineral and Glass Filled Electrical Encapsulation Grade Epoxy.pdf
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Material Notes:

E 3812M-1 is a mineral and short fiberglass filled epoxy molding compound for low pressure encapsulation molding, featuring excellent dimensional stability, good thermal shock resistance, and good electrical insulation properties.Information provided by Sumitomo Bak North America, Inc.

Physical Properties	Metric	English	Comments
Bulk Density	0.950 g/cc	0.0343 lb/inÂ³	ASTM D1895
Density	1.86 g/cc	0.0672 lb/inÂ³	ASTM D792
Water Absorption	0.30 % @Temperature 50.0 Â°C, Time 173000 sec	0.30 % @Temperature 122 Â°F, Time 48.0 hour	ASTM D570
Linear Mold Shrinkage	0.0035 - 0.0050 cm/cm	0.0035 - 0.0050 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	58.0 MPa	8410 psi	ASTM D638
Flexural Strength	94.0 MPa	13600 psi	at rupture; ASTM D790
Flexural Modulus	13.0 GPa	1890 ksi	ASTM D790
Compressive Strength	213 MPa	30900 psi	ASTM D695
Izod Impact, Notched	0.160 J/cm	0.300 ft-lb/in	ASTM D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	>= 280 Â°C	>= 536 Â°F	Post Baked; ASTM D648A

Electrical Properties	Metric	English	Comments
Dielectric Constant	3.8 @Frequency 1.00e+6 Hz	3.8 @Frequency 1.00e+6 Hz	wet; ASTM D150
Dielectric Strength	13.8 kV/mm @Frequency 60.0 Hz	351 kV/in @Frequency 60.0 Hz	step-by-step, wet; ASTM D149
	16.0 kV/mm @Frequency 60.0 Hz	406 kV/in @Frequency 60.0 Hz	short time, wet; ASTM D149
Dissipation Factor	0.020 @Frequency 1.00e+6 Hz	0.020 @Frequency 1.00e+6 Hz	wet; ASTM D150
Arc Resistance	178 sec	178 sec	ASTM D495

Descriptive Properties	Value	Comments
Color	Black
Form	Granular
Molding Method	Compression
	Transfer

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