Vyncolit X681 Novolac Phenolic

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Vyncolit X681 Novolac Phenolic
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Phenolic; Phenolic, Novolac, Glass Filled
Material Notes:	Glass fiber filled phenolic molding compound with excellent mechanical properties and a low coefficient of friction. Tribological compound with PTFE additive. USES: Water pump seals and self-lubricating bearings. Information provided by Vyncolit, a Sumitomo Bakelite Group
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Physical Properties	Metric	English	Comments

Bulk Density	0.700 - 0.850 g/cc	0.0253 - 0.0307 lb/in³	Powder Density; ISO 60
Density	1.70 g/cc	0.0614 lb/in³	Relative Density; ISO 1183
Linear Mold Shrinkage	0.0030 - 0.0040 cm/cm	0.0030 - 0.0040 in/in	Injection Molding; ISO 2577

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	50.0 - 60.0 MPa	7250 - 8700 psi	ISO 527
Elongation at Break	0.60 - 0.70 %	0.60 - 0.70 %	Tensile; ISO 527
Tensile Modulus	9.50 - 11.5 GPa	1380 - 1670 ksi	ISO 527
Flexural Strength	130 - 150 MPa	18900 - 21800 psi	At Rupture; ISO 178
Flexural Modulus	9.00 - 11.0 GPa	1310 - 1600 ksi	ISO 178
Flexural Strain at Break	1.3 - 1.4 %	1.3 - 1.4 %	ISO 178
Compressive Strength	220 - 240 MPa	31900 - 34800 psi	ISO 604
Charpy Impact Unnotched	0.750 - 0.900 J/cm²	3.57 - 4.28 ft-lb/in²	ISO 179
Charpy Impact, Notched	0.250 - 0.400 J/cm²	1.19 - 1.90 ft-lb/in²	ISO 179

Electrical Properties	Metric	English	Comments
Insulation Resistance	1.00e+13 - 1.00e+14 ohm	1.00e+13 - 1.00e+14 ohm	Dry; IEC 167
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	20.0 - 30.0 µm/m-°C @Temperature 20.0 °C	11.1 - 16.7 µin/in-°F @Temperature 68.0 °F	TMA
CTE, linear, Transverse to Flow	40.0 - 50.0 µm/m-°C @Temperature 20.0 °C	22.2 - 27.8 µin/in-°F @Temperature 68.0 °F	TMA
Deflection Temperature at 1.8 MPa (264 psi)	170 - 190 °C	338 - 374 °F	ISO 75 Af
Deflection Temperature at 8.0 MPa	150 - 170 °C	302 - 338 °F	ISO 75 C
Shrinkage	0.15 - 0.30 %	0.15 - 0.30 %	Post Shrinkage; ISO 2577

Descriptive Properties
Color	Black
ISO type	PF 2 C3
Main Filler	Glass Fiber
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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PVYNC004 / 72212

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