A. Schulman tetra-DUR N 4303 Bulk Molding Compound

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A. Schulman tetra-DUR N 4303 Bulk Molding Compound
Categories:	Polymer; Thermoset; Polyester, TS; Polyester (Thermoset) - Rigid
Material Notes:	Mechanical high grade standard product. Typical Applications - Requiring mechanical strength, abrasion resistance, dimensional stability, electrical insulation, electrostatic dissipation (explosion protection), thermal stability, color retention, chemical stability, zero shrink/class-A-surface, and uniform color. Information provided by Bulk Molding Compounds, Inc.
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Physical Properties	Metric	English	Comments

Density	1.80 - 2.00 g/cc	0.0650 - 0.0723 lb/in³	ISO 1138
Linear Mold Shrinkage	0.00 - 0.0010 cm/cm	0.00 - 0.0010 in/in	processing; ISO 2577

Mechanical Properties	Metric	English	Comments
Tensile Strength	35.0 - 45.0 MPa	5080 - 6530 psi	ISO 527
Flexural Strength	100 - 140 MPa	14500 - 20300 psi	ISO 178
Flexural Modulus	10.0 - 14.0 GPa	1450 - 2030 ksi	ISO 178
Compressive Strength	150 - 170 MPa	21800 - 24700 psi	ISO 604
Charpy Impact Unnotched	3.00 - 4.00 J/cm²	14.3 - 19.0 ft-lb/in²	ISO 179
Charpy Impact, Notched	3.00 - 4.00 J/cm²	14.3 - 19.0 ft-lb/in²	ISO 179

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+14 ohm-cm	1.00e+14 ohm-cm	IEC 60093
Surface Resistance	1.00e+13 ohm	1.00e+13 ohm	IEC 60093
Dielectric Constant	4.5 @Frequency 100 Hz	4.5 @Frequency 100 Hz	IEC 60250
Dielectric Strength	25.0 kV/mm @Thickness 1.00 mm	635 kV/in @Thickness 0.0394 in	IEC 60243
Dielectric Loss Index	<= 0.030 @Frequency 100 Hz	<= 0.030 @Frequency 100 Hz	IEC 60250
Comparative Tracking Index	>= 600 V	>= 600 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear	18.0 - 25.0 µm/m-°C	10.0 - 13.9 µin/in-°F	VDE 0304T1
Deflection Temperature at 1.8 MPa (264 psi)	>= 240 °C	>= 464 °F	ISO 75
Flammability, UL94	HB	HB
Shrinkage	0.00 - 0.050 %	0.00 - 0.050 %	post molding; ISO 2577

Descriptive Properties
Water Absorption	>40 mg/1d		ISO 62

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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PBMC905 / 123369

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