A. Schulman BMC 501E Mineral Filled, Glass Reinforced Polyester

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A. Schulman BMC 501E Mineral Filled, Glass Reinforced Polyester
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Polyester, TS; Thermoset Polyester Glass and Mineral Filled BMC
Material Notes:	BMC 501E molding compound is a mineral filled, glass-fiber-reinforced polyester compound suitable for compression and transfer molding. It is a product with good overall electrical properties, flame resistance, and low water absorption. Distinguished from other materials by its very soft flow, it is an excellent compound for encapsulating delicate components. Typical applications include coil and solenoid Encapsulation.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.77 g/cc	1.77 g/cc
Water Absorption	0.10 %	0.10 %	24 hours, 23°C
Linear Mold Shrinkage	0.00 - 0.0015 cm/cm	0.00 - 0.0015 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	<= 10	<= 10
Tensile Strength, Ultimate	27.6 - 41.4 MPa	4000 - 6000 psi
Flexural Strength	68.9 - 82.7 MPa	10000 - 12000 psi
Compressive Strength	75.8 - 103 MPa	11000 - 15000 psi
Izod Impact, Notched	0.801 - 1.60 J/cm	1.50 - 3.00 ft-lb/in

Electrical Properties	Metric	English	Comments
Dielectric Constant	4.9 @Frequency 60 Hz	4.9 @Frequency 60 Hz
Dielectric Strength	11.8 kV/mm	300 kV/in	Short Time
Dissipation Factor	0.0070 @Frequency 60 Hz	0.0070 @Frequency 60 Hz
Arc Resistance	>= 180 sec	>= 180 sec
Comparative Tracking Index	>= 500 V	>= 500 V

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	>= 204 °C	>= 400 °F
Flammability, UL94	V-0 @Thickness 6.35 mm	V-0 @Thickness 0.250 in
	V-0 @Thickness 3.17 mm	V-0 @Thickness 0.125 in
	V-0 @Thickness 1.59 mm	V-0 @Thickness 0.0625 in

Processing Properties	Metric	English	Comments
Mold Temperature	138 - 166 °C	280 - 330 °F

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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PBMC062 / 27245

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