A. Schulman BMC 5307 Mineral Filled, Glass Reinforced Polyester

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A. Schulman BMC 5307 Mineral Filled, Glass Reinforced Polyester
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Polyester, TS; Thermoset Polyester Glass and Mineral Filled BMC
Material Notes:	BMC 5307 molding compound is a mineral filled, glass fiber-reinforced polyester compound suitable for compression, transfer and stuffer injection molding. It is a medium impact material produced in extruded form for ease of handling. Other characteristics are good overall electrical properties and flame resistance. Typical applications include circuit breakers, transformer bobbins and motor end bells.
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Physical Properties	Metric	English	Comments

Specific Gravity	2.01 g/cc	2.01 g/cc
Water Absorption	0.10 %	0.10 %	24 hours, 23°C
Linear Mold Shrinkage	0.0022 - 0.0040 cm/cm	0.0022 - 0.0040 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	30 - 45	30 - 45
Tensile Strength, Ultimate	55.2 - 68.9 MPa	8000 - 10000 psi
Flexural Strength	110 - 138 MPa	16000 - 20000 psi
Compressive Strength	152 - 179 MPa	22000 - 26000 psi
Izod Impact, Notched	2.14 - 2.67 J/cm	4.00 - 5.00 ft-lb/in

Electrical Properties	Metric	English	Comments
Dielectric Strength	13.8 kV/mm	350 kV/in	Short Time
Arc Resistance	>= 185 sec	>= 185 sec
Comparative Tracking Index	>= 600 V	>= 600 V

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	>= 260 °C	>= 500 °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 - 177 °C	280 - 350 °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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PBMC065 / 27248

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