Vyncolit X655 Novolac Phenolic

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Vyncolit X655 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 dimensional stability and a very low coefficient of thermal expansion. UL listed. USES: Automotive disc brake pistons and gaskets, automatic gearbox thrust washers. Complex precision parts for compact disc players and automotive injection fuel pump bodies/impellers. Information provided by Vyncolit, a Sumitomo Bakelite Group
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Physical Properties	Original Value	Comments

Bulk Density	1.05 g/cc	Powder Density; ISO 60
Density	2.08 g/cc	Relative Density; ISO 1183
Linear Mold Shrinkage	0.0020 cm/cm	Injection Molding; ISO 2577

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	95.0 MPa	ISO 527
Elongation at Break	0.40 %	Tensile; ISO 527
Tensile Modulus	28.0 GPa	ISO 527
Flexural Strength	170 MPa	At Rupture; ISO 178
Flexural Modulus	25.0 GPa	ISO 178
Flexural Strain at Break	0.75 %	ISO 178
Compressive Strength	300 MPa	ISO 604
Charpy Impact Unnotched	0.800 J/cm²	ISO 179
Charpy Impact, Notched	0.250 J/cm²	ISO 179

Electrical Properties	Original Value	Comments
Insulation Resistance	1.00e+13 - 1.00e+14 ohm	Dry; IEC 167
Dielectric Strength	30.0 kV/mm	IEC 243
Comparative Tracking Index	200 V	IEC 112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	14.0 µm/m-°C @Temperature 20.0 °C	TMA
CTE, linear, Transverse to Flow	20.0 µm/m-°C @Temperature 20.0 °C	TMA
Deflection Temperature at 1.8 MPa (264 psi)	200 °C	ISO 75 Af
Flammability, UL94	V-0 @Thickness 1.60 mm
	V-0 @Thickness 4.00 mm
Shrinkage	0.010 %	Post Shrinkage; ISO 2577

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

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