Sumitomo Bakelite North America FS-4 Short-Glass Reinforced Diallyl Phthalate

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Sumitomo Bakelite North America FS-4 Short-Glass Reinforced Diallyl Phthalate
Categories:	Polymer; Thermoset; Diallyl Phthalate (DAP); Diallyl Phthalate (DAP) Molding Compound, Short Glass Fiber Filled; Filled/Reinforced Thermoset
Material Notes:	Isophthalate DAP Resin Isomer. Used for critical, high-performance military and commercial electrical components where long-term reliability is demanded. Information provided by Sumitomo Bakelite North America, Inc.
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Physical Properties	Metric	English	Comments

Density	1.64 g/cc	0.0592 lb/in³	ASTM D792
Apparent Bulk Density	0.270 g/cc	0.00975 lb/in³
Water Absorption	0.35 %	0.35 %	48 hours, 50°C. ASTM D570
Linear Mold Shrinkage	0.0015 - 0.0035 cm/cm	0.0015 - 0.0035 in/in	Compression Molding. ASTM D955

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	69.0 MPa	10000 psi	ASTM D638
Flexural Yield Strength	131 MPa	19000 psi	ASTM D790
Flexural Modulus	13.8 GPa	2000 ksi	ASTM D790
Compressive Yield Strength	152 MPa	22000 psi	ASTM D695
Izod Impact, Notched	1.87 J/cm	3.50 ft-lb/in	ASTM D256A

Electrical Properties	Metric	English	Comments
Dielectric Constant	4.0 @Frequency 1e+6 Hz	4.0 @Frequency 1e+6 Hz	Wet
	4.2 @Frequency 1000 Hz	4.2 @Frequency 1000 Hz	Wet
Dielectric Strength	14.0 kV/mm	356 kV/in	Wet, step-by-step. ASTM D149
	15.0 kV/mm	381 kV/in	Wet, short term. ASTM D149
Dissipation Factor	0.010 @Frequency 1000 Hz	0.010 @Frequency 1000 Hz	Wet; ASTM D150
	0.014 @Frequency 1e+6 Hz	0.014 @Frequency 1e+6 Hz	Wet; ASTM D150
Arc Resistance	138 sec	138 sec	ASTM D495
Comparative Tracking Index	>= 600 V	>= 600 V	UL746A, ASTM D3638

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	18.0 µm/m-°C @Temperature 20.0 °C	10.0 µin/in-°F @Temperature 68.0 °F	ASTM D696
Thermal Conductivity	0.322 W/m-K	2.23 BTU-in/hr-ft²-°F	ASTM F433
Deflection Temperature at 1.8 MPa (264 psi)	260 °C	500 °F	ASTM D648A
Oxygen Index	29 %	29 %	ASTM D2863

Processing Properties	Metric	English	Comments
Processing Temperature	160 - 180 °C	320 - 356 °F	Mold temperature

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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