A. Schulman BMC 945 Conductive Grade Bulk Molding Compound

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A. Schulman BMC 945 Conductive Grade Bulk Molding Compound
Categories:	Polymer; Thermoset; Polyester, TS; Thermoset Polyester Glass and Mineral Filled BMC
Material Notes:	BMC 945 is an ESD level Conductive grade of Bulk Molding Compound and is suitable for compression, transfer and stuffer injection molding. It is characterized by excellent flow and controlled reactivity and is well suited for injection molding. Typical applications may include electronic enclosures, computer chip trays and storage boxes, and other applications requiring ESD level conductivity.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.75 - 1.95 g/cc	1.75 - 1.95 g/cc
Water Absorption	0.14 - 0.21 %	0.14 - 0.21 %	24 hours, 23°C
Linear Mold Shrinkage	0.0050 - 0.010 cm/cm	0.0050 - 0.010 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	45 - 55	45 - 55
Tensile Strength, Ultimate	41.4 - 51.7 MPa	6000 - 7500 psi
Flexural Strength	82.7 - 96.5 MPa	12000 - 14000 psi
Flexural Modulus	12.4 - 13.8 GPa	1800 - 2000 ksi
Compressive Strength	124 - 138 MPa	18000 - 20000 psi
Izod Impact, Notched	1.07 - 1.60 J/cm	2.00 - 3.00 ft-lb/in

Electrical Properties	Metric	English	Comments
Surface Resistivity per Square	1e+05 - 1.00e+7 ohm	1e+05 - 1.00e+7 ohm

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	>= 232 °C	>= 450 °F
Glass Transition Temp, Tg	>= 165 °C	>= 329 °F
Flammability, UL94	V-0 @Thickness 3.17 mm	V-0 @Thickness 0.125 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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PBMC041 / 27224

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