A. Schulman BMC 5338 Mineral Filled, Glass Reinforced Polyester

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A. Schulman BMC 5338 Mineral Filled, Glass Reinforced Polyester
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Polyester, TS; Thermoset Polyester Glass and Mineral Filled BMC
Material Notes:	BMC 5338 molding compound is a mineral Filled, glass fiber-reinforced polyester compound suitable for compression, transfer and stuffer injection molding. It is a high impact material produced in extruded form for ease of handling. Other characteristics are good over all electrical properties and flame resistance. Typical applications include circuit breaker housings, standoff insulators, bus supports and tool housings.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.84 g/cc	1.84 g/cc
Water Absorption	0.10 %	0.10 %	24 hours, 23°C
Linear Mold Shrinkage	0.0010 - 0.0020 cm/cm	0.0010 - 0.0020 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	35 - 45	35 - 45
Tensile Strength, Ultimate	41.4 - 55.2 MPa	6000 - 8000 psi
Flexural Strength	131 - 165 MPa	19000 - 24000 psi
Compressive Strength	165 - 193 MPa	24000 - 28000 psi
Izod Impact, Notched	3.20 - 4.81 J/cm	6.00 - 9.00 ft-lb/in

Electrical Properties	Metric	English	Comments
Dielectric Strength	13.8 - 15.0 kV/mm	350 - 380 kV/in	Short Time
Arc Resistance	>= 190 sec	>= 190 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 - 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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PBMC066 / 27249

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