A. Schulman tetra-DUR N 4203 Bulk Molding Compound

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A. Schulman tetra-DUR N 4203 Bulk Molding Compound
Categories:	Polymer; Thermoset; Polyester, TS; Polyester (Thermoset) - Rigid
Material Notes:	Highest dimensional stability under temp. Low profile. 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	Original Value	Comments

Density	1.90 - 2.10 g/cc	ISO 1138
Linear Mold Shrinkage	-0.00200 - 0.0010 in/in	processing, expansion/shrinkage; ISO 2577

Mechanical Properties	Original Value	Comments
Tensile Strength	30.0 - 35.0 MPa	ISO 527
Flexural Strength	100 - 130 MPa	ISO 178
Flexural Modulus	12.0 - 16.0 GPa	ISO 178
Compressive Strength	>= 180 MPa	ISO 604
Charpy Impact Unnotched	>= 18.0 kJ/m²	ISO 179
Charpy Impact, Notched	>= 18.0 kJ/m²	ISO 179

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	IEC 60093
Surface Resistance	1.00e+13 ohm	IEC 60093
Dielectric Constant	4.5 @Frequency 100 Hz	IEC 60250
Dielectric Strength	20.0 kV/mm @Thickness 1.00 mm	IEC 60243
Dielectric Loss Index	<= 0.030 @Frequency 100 Hz	IEC 60250
Comparative Tracking Index	>= 600 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear	12.0 - 20.0 µm/m-°C	VDE 0304T1
Deflection Temperature at 1.8 MPa (264 psi)	>= 240 °C	ISO 75
Flammability, UL94	HB
Shrinkage	0.00 - 0.050 %	post molding; ISO 2577

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

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PBMC904 / 123368

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