Vyncolit X658 Novolac Phenolic

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Vyncolit X658 Novolac Phenolic
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Phenolic; Phenolic, Novolac, Mineral/Glass Filled
Material Notes:	Glass fiber and mineral filled phenolic molding compound with excellent mechanical and thermal properties and a very good dimensional stability. USES: Complex precision parts. Information provided by Vyncolit, a Sumitomo Bakelite Group
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Physical Properties	Metric	English	Comments

Bulk Density	0.900 - 1.05 g/cc	0.0325 - 0.0379 lb/in³	Powder Density; ISO 60
Density	2.10 g/cc	0.0759 lb/in³	Relative Density; ISO 1183
Linear Mold Shrinkage	0.0015 - 0.0025 cm/cm	0.0015 - 0.0025 in/in	Injection Molding; ISO 2577

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	40.0 - 60.0 MPa	5800 - 8700 psi	ISO 527
Elongation at Break	0.30 - 0.50 %	0.30 - 0.50 %	Tensile; ISO 527
Tensile Modulus	17.5 - 19.5 GPa	2540 - 2830 ksi	ISO 527
Flexural Strength	80.0 - 100 MPa	11600 - 14500 psi	At Rupture; ISO 178
Flexural Modulus	12.0 - 14.0 GPa	1740 - 2030 ksi	ISO 178
Flexural Strain at Break	0.75 - 0.85 %	0.75 - 0.85 %	ISO 178
Compressive Strength	220 - 260 MPa	31900 - 37700 psi	ISO 604
Charpy Impact Unnotched	0.400 - 0.600 J/cm²	1.90 - 2.86 ft-lb/in²	ISO 179
Charpy Impact, Notched	0.200 - 0.400 J/cm²	0.952 - 1.90 ft-lb/in²	ISO 179

Electrical Properties	Metric	English	Comments
Dielectric Strength	30.0 kV/mm	762 kV/in	IEC 243
Comparative Tracking Index	175 V	175 V	IEC 112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	15.0 - 25.0 µm/m-°C @Temperature 20.0 °C	8.33 - 13.9 µin/in-°F @Temperature 68.0 °F	TMA
CTE, linear, Transverse to Flow	20.0 - 30.0 µm/m-°C @Temperature 20.0 °C	11.1 - 16.7 µin/in-°F @Temperature 68.0 °F	TMA
Deflection Temperature at 1.8 MPa (264 psi)	180 - 200 °C	356 - 392 °F	ISO 75 Af
Deflection Temperature at 8.0 MPa	155 - 170 °C	311 - 338 °F	ISO 75 C
Flammability, UL94	V-0 @Thickness 1.60 mm	V-0 @Thickness 0.0630 in
	V-0 @Thickness 4.00 mm	V-0 @Thickness 0.157 in
Shrinkage	0.050 - 0.15 %	0.050 - 0.15 %	Post Shrinkage; ISO 2577

Descriptive Properties
Color	Black
ISO type	PF 2 C3
Main Filler	Glass Fiber & Mineral
Molding Method	Compression, transfer, injection

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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