Cosmic Plastics 3D94 Mineral Filled Polyester Molding Compound

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Cosmic Plastics 3D94 Mineral Filled Polyester Molding Compound
Categories:	Polymer; Thermoset; Polyester, TS; Thermoset Polyester, Mineral Filled
Material Notes:	Description: Cosmic 3D94 is a mineral filled, polyester molding compound which is supplied in a sheet form. It molds easily in standard compression or transfer equipment and has a shelf life of six months when stored at 50C or below. Features: 3D94 is available in green color and has a flow range of 17 to 35 inches. Applications: Used in inductors, capacitors, resistors and resistor networks. Information provided by Cosmic Plastics Inc
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Physical Properties	Metric	English	Comments

Specific Gravity	1.89 g/cc	1.89 g/cc
Water Absorption	0.40 % @Temperature 50.0 °C, Time 173000 sec	0.40 % @Temperature 122 °F, Time 48.0 hour
Linear Mold Shrinkage	0.0010 - 0.0080 cm/cm	0.0010 - 0.0080 in/in

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	24.1 - 48.3 MPa	3500 - 7000 psi
Flexural Strength	55.2 - 96.5 MPa	8000 - 14000 psi
Compressive Strength	124 - 152 MPa	18000 - 22000 psi
Izod Impact, Notched	0.160 - 0.267 J/cm	0.300 - 0.500 ft-lb/in

Electrical Properties	Metric	English	Comments
Dielectric Constant	5.5 @Frequency 1000 Hz	5.5 @Frequency 1000 Hz	Dry
	5.5 @Frequency 1e+6 Hz	5.5 @Frequency 1e+6 Hz	Wet
	5.6 @Frequency 1e+6 Hz	5.6 @Frequency 1e+6 Hz	Dry
	6.0 @Frequency 1000 Hz	6.0 @Frequency 1000 Hz	Wet
Dielectric Strength	13.8 kV/mm	350 kV/in	Wet, step by step
	15.7 kV/mm	400 kV/in	Dry, step by step
Dielectric Breakdown	40 V	40 V	Wet, step by step
	55 V	55 V	Dry, step by step
Dissipation Factor	0.025 @Frequency 1e+6 Hz	0.025 @Frequency 1e+6 Hz	Dry
	0.030 @Frequency 1e+6 Hz	0.030 @Frequency 1e+6 Hz	Wet
	0.040 @Frequency 1000 Hz	0.040 @Frequency 1000 Hz	Dry
	0.050 @Frequency 1000 Hz	0.050 @Frequency 1000 Hz	Wet
Arc Resistance	140 sec	140 sec

Thermal Properties	Metric	English	Comments
Heat Distortion Temperature	205 °C	401 °F

Processing Properties	Metric	English	Comments
Mold Temperature	130 - 170 °C	266 - 338 °F

Descriptive Properties
Dimensional Stability	<0.04%
Molding Pressure	250-8000 psi

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PCOSM024 / 190806

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