A. Schulman BMC 1902 Mineral Filled Alkyd

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A. Schulman BMC 1902 Mineral Filled Alkyd
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Polyester, TS; Alkyd (Polyester), Molded, Mineral Filler
Material Notes:	BMC 1902 molding compound is a mineral filled, glass-fiber-reinforced alkyd compound suitable for compression molding. It was developed primarily for applications requiring very good impact and flexural strengths. Typical applications include phase barriers, connector bases, switch cases and circuit breaker handles
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Physical Properties	Original Value	Comments

Specific Gravity	2.08 g/cc
Water Absorption	0.23 %	24 hours, 23°C
Linear Mold Shrinkage	0.0020 - 0.0040 cm/cm

Mechanical Properties	Original Value	Comments
Hardness, Barcol	60 - 80
Flexural Strength	21000 - 26000 psi
Compressive Strength	22000 - 26000 psi
Izod Impact, Notched	4.00 - 6.00 ft-lb/in

Electrical Properties	Original Value	Comments
Dielectric Constant	7.1 @Frequency 60 Hz
Dielectric Strength	300 V/mil	Short Time
Dissipation Factor	0.030 @Frequency 60 Hz
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 @Thickness 6.35 mm
	HB @Thickness 3.17 mm
	HB @Thickness 1.59 mm

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

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