Lavergne VYPET VNT 840 PET 40% Glass-Mineral Reinforced

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Lavergne VYPET VNT 840 PET 40% Glass-Mineral Reinforced
Categories:	Polymer; Thermoplastic; Polyester, TP; Polyethylene Terephthalate (PET); Polyethylene Terephthalate (PET), Glass/Mineral Reinforced
Material Notes:	Vypet VNT 840 is a 40% glass/mineral reinforced PET injection molding compound designed for electrical and structural applications, with High Dielectric Strength Features: High temperature performance; Excellent strength & high stiffness; Excellent dimensional stability Typical Applications: Electric motors; Brackets; Connectors Information provided by Bieglo Gmbh for Lavergne Performance Compounds
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Physical Properties	Original Value	Comments

Density	1.61 g/cc	ISO 1183
Water Absorption	0.060 % @Temperature 23.0 °C	ASTM D570
Linear Mold Shrinkage, Flow	0.0050 cm/cm @Thickness 3.20 mm	3.2x7.6x12.6mm; ASTM D955
Linear Mold Shrinkage, Transverse	0.010 cm/cm @Thickness 3.20 mm	3.2x7.6x12.6mm; ASTM D955

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	109	ASTM D785
Tensile Strength at Break	120 MPa	5 mm/min; ISO 527
Flexural Strength	177 MPa	2 mm/min; ISO 178
Flexural Modulus	10479 MPa	2 mm/min; ISO 178
Compressive Strength	126 MPa	1.3 mm/min; ASTM D695
Shear Strength	49.0 MPa	ASTM D732
Izod Impact, Notched (ISO)	7.00 kJ/m²	ISO 180

Electrical Properties	Original Value	Comments
Volume Resistivity	1.65e+16 ohm-cm	ASTM D257
Dielectric Constant	3.8 @Frequency 1000 Hz	ASTM D150
Dielectric Strength	28.4 kV/mm @Thickness 1.60 mm, Temperature 23.0 °C	500 V/s in oil; ASTM D149
Dissipation Factor	0.0080 @Frequency 1000 Hz	ASTM D150

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	26.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ASTM E831
CTE, linear, Transverse to Flow	31.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ASTM E831
Melting Point	246 °C
Deflection Temperature at 1.8 MPa (264 psi)	222 °C	ISO 75
Flammability, UL94	HB @Thickness 3.20 mm

Processing Properties	Original Value	Comments
Feed Temperature	260 - 270 °C
Middle Barrel Temperature	265 - 275 °C
Front Barrel Temperature	270 - 295 °C
Nozzle Temperature	275 - 300 °C
Melt Temperature	275 - 300 °C
Mold Temperature	75.0 - 120 °C

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