A. Schulman BMC A50-MS General Purpose Molding Compound

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A. Schulman BMC A50-MS General Purpose Molding Compound
Categories:	Polymer; Thermoset; Polyester, TS; Polyester (Thermoset) - Rigid
Material Notes:	BMC A50-MS is a medium strength, high appearance, general purpose molding compound. Due to the excellent flow and controlled reactivity, BMC A50-MS is well suited for injection, transfer or compression molding of intricate parts. Typical applications are appliance bodies, insulators, bobbins and electrical connectors. Information provided by Bulk Molding Compounds, Inc.
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Physical Properties	Metric	English	Comments

Density	1.83 - 2.03 g/cc	0.0661 - 0.0733 lb/in³	Molded
Linear Mold Shrinkage	0.0025 - 0.0030 cm/cm	0.0025 - 0.0030 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	30 - 40	30 - 40
Tensile Strength	47.6 - 61.4 MPa	6900 - 8900 psi
Flexural Strength	100 - 128 MPa	14500 - 18500 psi
Flexural Modulus	8.27 - 9.65 GPa	1200 - 1400 ksi
Compressive Strength	134 - 162 MPa	19500 - 23500 psi
Izod Impact, Notched	2.67 - 3.74 J/cm	5.00 - 7.00 ft-lb/in

Electrical Properties	Metric	English	Comments
Dielectric Strength	14.4 - 16.3 kV/mm	365 - 415 kV/in	short time
Arc Resistance	>= 191 sec	>= 191 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	V-0

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

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PBMC921 / 123385

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