A. Schulman BMC A30-3021 General Purpose Molding Compound

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A. Schulman BMC A30-3021 General Purpose Molding Compound
Categories:	Polymer; Thermoset; Polyester, TS; Polyester (Thermoset) - Rigid
Material Notes:	BMC A30-3021 is a low shrink, general purpose molding compound formulated for the lighting industry. A30-3021 is temperature stabilized for use in elevated temp. lighting applications. Due to the excellent flow and controlled reactivity, BMC A30-3021 is well suited for injection, transfer or compression molding. Information provided by Bulk Molding Compounds, Inc.
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Physical Properties	Original Value	Comments

Density	1.84 - 2.04 g/cc	Molded
Linear Mold Shrinkage	0.00050 - 0.0015 in/in

Mechanical Properties	Original Value	Comments
Hardness, Barcol	30 - 40
Tensile Strength	4800 - 6800 psi
Flexural Strength	12000 - 16000 psi
Flexural Modulus	1000 - 1200 ksi
Compressive Strength	13500 - 17500 psi
Izod Impact, Notched	3.00 - 6.00 ft-lb/in

Electrical Properties	Original Value	Comments
Dielectric Strength	275 - 325 V/mil	short time
Arc Resistance	>= 180 sec
Comparative Tracking Index	>= 500 V

Thermal Properties	Original Value	Comments
Deflection Temperature at 1.8 MPa (264 psi)	>= 500 °F
Flammability, UL94	HB

Processing Properties	Original Value	Comments
Processing Temperature	280 - 330 °F

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PBMC919 / 123383

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