Celanese Vandar® 8000 PBT, Unfilled

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Celanese Vandar® 8000 PBT, Unfilled
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes:	Vandar 8000 polyester alloy is designed to meet UL94 V-0 requirements at 1/32 inch thickness while retaining excellent impact resistance. The product is characterized by excellent moldability and surface finish. Vandar 8000 is well suited for electrical and electronic applications. Information provided by Celanese
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Physical Properties	Metric	English	Comments

Specific Gravity	1.37 g/cc	1.37 g/cc	ASTM D792
Density	1.37 g/cc	0.0495 lb/in³	ISO 1183
Moisture Absorption	0.200 %	0.200 %	23°C/50%RH; ISO 62
Linear Mold Shrinkage, Flow	0.025 - 0.028 cm/cm	0.025 - 0.028 in/in	ISO 294-4
	0.025 - 0.028 cm/cm	0.025 - 0.028 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	105	105	ISO 2039-2
Tensile Strength at Break	34.5 MPa	5000 psi	ASTM D638
Tensile Strength, Yield	30.0 MPa	4350 psi	50mm/min; ISO 527-2/1A
	34.5 MPa	5000 psi	ASTM D638
Tensile Stress at Strain	32.0 MPa @Strain 50 %	4640 psi @Strain 50 %	ISO 527-2/1A
Elongation at Break	50 %	50 %	50mm/min; ISO 527-2/1A
	>= 50 %	>= 50 %
	50 %	50 %	ASTM D638
Elongation at Yield	4.5 %	4.5 %	50mm/min; ISO 527-2/1A
Tensile Modulus	1.70 GPa	247 ksi	50mm/min; ISO 527-2/1A
Flexural Strength	50.0 MPa	7250 psi	ISO 178
	58.6 MPa	8500 psi	ASTM D790
Flexural Modulus	1.65 GPa	239 ksi	ISO 178
	1.79 GPa	260 ksi	ASTM D790
Izod Impact, Notched	NB	NB	ASTM D256
Izod Impact, Notched (ISO)	NB	NB	ISO 180/1A
Charpy Impact Unnotched	NB	NB	ISO 179/1eU
	NB @Temperature -30.0 °C	NB @Temperature -22.0 °F	ISO 179/1eU
Charpy Impact, Notched	7.50 J/cm²	35.7 ft-lb/in²	ISO 179/1eA
	1.50 J/cm² @Temperature -30.0 °C	7.14 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+14 ohm-cm	1.00e+14 ohm-cm	IEC 60093
Surface Resistance	1.00e+14 ohm	1.00e+14 ohm	IEC 60093
Dielectric Constant	3.6 @Frequency 1e+6 Hz	3.6 @Frequency 1e+6 Hz	IEC 60250
	4.0 @Frequency 100 Hz	4.0 @Frequency 100 Hz	IEC 60250
Dielectric Strength	24.0 kV/mm	610 kV/in	IEC 60243-1
Dissipation Factor	0.0045 @Frequency 100 Hz	0.0045 @Frequency 100 Hz	IEC 60250
	0.017 @Frequency 1e+6 Hz	0.017 @Frequency 1e+6 Hz	IEC 60250
Arc Resistance	81 sec	81 sec	ASTM D495
Comparative Tracking Index	600 V	600 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	89.0 µm/m-°C	49.4 µin/in-°F	ISO 11359-2
CTE, linear, Transverse to Flow	110 µm/m-°C	61.1 µin/in-°F	ISO 11359-2
Melting Point	225 °C	437 °F	10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 0.46 MPa (66 psi)	116 °C	240 °F	ASTM D648
	127 °C	261 °F	ISO 75-1, -2
Deflection Temperature at 1.8 MPa (264 psi)	52.0 °C	126 °F	ISO 75-1, -2
	54.4 °C	130 °F	ASTM D648
Flammability, UL94	V-0	V-0
	V-0 @Thickness 0.850 mm	V-0 @Thickness 0.0335 in

Processing Properties	Metric	English	Comments
Processing Temperature	65.0 - 96.0 °C	149 - 205 °F	cavity
	250 - 260 °C	482 - 500 °F	hot runner
Feed Temperature	230 - 240 °C	446 - 464 °F
Zone 1	230 - 240 °C	446 - 464 °F
Zone 2	235 - 250 °C	455 - 482 °F
Zone 3	235 - 250 °C	455 - 482 °F
Zone 4	240 - 255 °C	464 - 491 °F
Die Temperature	240 - 255 °C	464 - 491 °F
Melt Temperature	235 - 255 °C	455 - 491 °F
	260 °C	500 °F	ISO 294
Mold Temperature	82.0 °C	180 °F	ISO 294
Injection Velocity	300 mm/sec	11.8 in/sec	ISO 294
Drying Temperature	120 - 130 °C	248 - 266 °F
Dry Time	4.00 hour	4.00 hour
Moisture Content	<= 0.020 %	<= 0.020 %
Hold Pressure	86.0 MPa	12500 psi	ISO 294

Descriptive Properties
Injection molding	Yes
Injection speed	medium-fast
Processing conditions acc. ISO	7792-2

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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