Sumitomo Bakelite North America Epiall® 1908-1 Short Glass Fiber Reinforced Epoxy

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Sumitomo Bakelite North America Epiall® 1908-1 Short Glass Fiber Reinforced Epoxy
Categories:	Polymer; Thermoset; Epoxy; Epoxy, Molded, Glass Fiber Filler; Filled/Reinforced Thermoset
Material Notes:	Epiall 1908-1 is a short fiberglass reinforced epoxy molding compound, with excellent dimensional stability, good strength properties and good electrical insulation proper-ties that meets the requirements of ASTM D5948 Type GEI-5 Information provided by Sumitomo Bakelite North America, Inc.
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Physical Properties	Metric	English	Comments

Bulk Density	0.900 g/cc	0.0325 lb/in³	ASTM D1895
Density	1.92 g/cc	0.0694 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	0.0020 - 0.0040 cm/cm	0.0020 - 0.0040 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	80.0 MPa	11600 psi	ASTM D638
Flexural Strength	130 MPa	18900 psi	at rupture; ASTM D790
Flexural Modulus	15.1 GPa	2190 ksi	ASTM D790
Compressive Strength	240 MPa	34800 psi	ASTM D695
Izod Impact, Notched	0.370 J/cm	0.693 ft-lb/in	ASTM D256

Electrical Properties	Metric	English	Comments
Dielectric Constant	4.1 @Frequency 1e+6 Hz	4.1 @Frequency 1e+6 Hz	wet; ASTM D150
Dielectric Strength	12.9 kV/mm @Frequency 60 Hz	328 kV/in @Frequency 60 Hz	step-by-step, wet; ASTM D149
	14.3 kV/mm @Frequency 60 Hz	363 kV/in @Frequency 60 Hz	short time, wet; ASTM D149
Dissipation Factor	0.020 @Frequency 1e+6 Hz	0.020 @Frequency 1e+6 Hz	wet; ASTM D150
Arc Resistance	180 sec	180 sec	ASTM D495

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	37.0 µm/m-°C	20.6 µin/in-°F	ASTM E831
Maximum Service Temperature, Air	130 °C	266 °F	UL Temperature Index; UL 746B
Deflection Temperature at 1.8 MPa (264 psi)	>= 282 °C	>= 540 °F	Post Baked; ASTM D648A
Flammability, UL94	V-0 @Thickness 6.40 mm	V-0 @Thickness 0.252 in

Descriptive Properties
Colors	Black, Blue, Green, Gray
Form	Granular
Molding Method	Compression
	Injection
	Transfer

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