Evonik Vestodur® HI19 Polymer Modified PBT

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Evonik Vestodur® HI19 Polymer Modified PBT
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Unreinforced, Molded
Material Notes:	Description: Degussa AG’s High Performance Polymers Business Unit manufactures a range of polybutylene terephthalate compounds that are supplied under the registered trademark VESTODUR® . Material properties characterizing VESTODUR compounds are: high thermostability high stiffness low water absorption resulting in high dimensional stability high hardness good strength good sliding friction behavior, low abrasion good creep behavior good electrical properties good chemical resistance good weathering resistance good processability no tendency to form stress cracks Specific Notes for this Material: Polymer-modified compounds, adjusted flexible, with increased impact strength, for applications such as temperature sensors and oil dipsticks. Unreinforced, stabilized, with mold release agent. Information provided by degussa. Evonik Industries is the successor company to Degussa.
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Physical Properties	Metric	English	Comments

Density	1.26 g/cc	0.0455 lb/in³	ISO 1183
Water Absorption at Saturation	0.35 %	0.35 %	ISO 62
Linear Mold Shrinkage	0.014 cm/cm	0.014 in/in	Pigmentation can change mold shrinkage.
Linear Mold Shrinkage, Transverse	0.014 cm/cm	0.014 in/in	Pigmentation can change mold shrinkage.
Melt Flow	15.12 g/10 min @Load 2.16 kg, Temperature 250 °C	15.12 g/10 min @Load 4.76 lb, Temperature 482 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	65	65	ISO 868
Ball Indentation Hardness	50.0 MPa	7250 psi	H30; ISO 2039-1
Tensile Strength, Yield	27.0 MPa	3920 psi	50 mm/min; ISO 527-1/2
Elongation at Break	>= 50 %	>= 50 %	50 mm/min; ISO 527-1/2
Elongation at Yield	23 %	23 %	50 mm/min; ISO 527-1/2
Tensile Modulus	0.550 GPa	79.8 ksi	ISO 527-1/2
Charpy Impact Unnotched	NB @Temperature -30.0 °C	NB @Temperature -22.0 °F	ISO 179/1eU
	NB @Temperature 23.0 °C	NB @Temperature 73.4 °F	ISO 179/1eU
Charpy Impact, Notched	0.800 J/cm² @Temperature -30.0 °C	3.81 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eA
	3.00 J/cm² @Temperature 23.0 °C	14.3 ft-lb/in² @Temperature 73.4 °F	ISO 179/1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+15 ohm-cm	1.00e+15 ohm-cm	IEC 60093
Surface Resistance	1.00e+13 ohm	1.00e+13 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	27.0 kV/mm	686 kV/in	K20/P50; IEC 60243-1
Dissipation Factor	0.022 @Frequency 100 Hz	0.022 @Frequency 100 Hz	IEC 60250
	0.033 @Frequency 1e+6 Hz	0.033 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	575 V	575 V	Test Solution A, 100 drops; IEC 60112
	600 V	600 V	Test Solution A, CTI; IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear	150 µm/m-°C @Temperature 23.0 - 55.0 °C	83.3 µin/in-°F @Temperature 73.4 - 131 °F	Longitudinal; ISO 11359
CTE, linear, Transverse to Flow	150 µm/m-°C @Temperature 23.0 - 55.0 °C	83.3 µin/in-°F @Temperature 73.4 - 131 °F	ISO 11359
Melting Point	200 - 205 °C	392 - 401 °F	DSC
Deflection Temperature at 0.46 MPa (66 psi)	110 °C	230 °F	ISO 75-1/2
Deflection Temperature at 1.8 MPa (264 psi)	50.0 °C	122 °F	ISO 75-1/2
Vicat Softening Point	125 °C	257 °F	50N; ISO 306
	190 °C	374 °F	10N; ISO 306
Flammability, UL94	HB @Thickness 0.800 mm	HB @Thickness 0.0315 in
	HB @Thickness 1.60 mm	HB @Thickness 0.0630 in
Glow Wire Test	700 °C @Thickness 2.00 mm	1290 °F @Thickness 0.0787 in	IEC 60695-2-1/0-3

Descriptive Properties
Electrolytic Corrosion	A1 Step		IEC 60426

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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