A. Schulman BMC 501 Mineral Filled, Glass Fiber Reinforced Compound

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A. Schulman BMC 501 Mineral Filled, Glass Fiber Reinforced Compound
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Polyester, TS; Thermoset Polyester Glass and Mineral Filled BMC
Material Notes:	BMC 501 molding compound is a mineral filled glass-fiber-reinforced compound suitable for compression, transfer and stuffer injection molding. It provides the user with good electrical properties And extremely low water absorption. This product has a low mold shrinkage and resists the formation of internal voids normally associated with glass filled compounds. Typical applications include slip rings, brush holders and connector bases.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.93 g/cc	1.93 g/cc
Water Absorption	0.060 %	0.060 %	24 hours, 23°C
Linear Mold Shrinkage	0.00 - 0.015 cm/cm	0.00 - 0.015 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	25 - 35	25 - 35
Tensile Strength, Ultimate	34.5 - 48.3 MPa	5000 - 7000 psi
Flexural Strength	82.7 - 110 MPa	12000 - 16000 psi
Compressive Strength	138 - 165 MPa	20000 - 24000 psi
Izod Impact, Notched	0.801 - 1.33 J/cm	1.50 - 2.50 ft-lb/in

Electrical Properties	Metric	English	Comments
Dielectric Constant	5.2 @Frequency 60 Hz	5.2 @Frequency 60 Hz
Dielectric Strength	13.0 kV/mm	330 kV/in	Short Time
Dissipation Factor	0.020 @Frequency 60 Hz	0.020 @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)	>= 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 - 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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