Evonik Vestodur® X4877 30% Glass Reinforced PBT

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Evonik Vestodur® X4877 30% Glass Reinforced PBT
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), 30% Glass Fiber Filled
Material Notes:	Description: VESTODUR X4877 is an easy-flow, glass fiber reinforced (30 %) polybutylene terephthalate compound (PBT) with increased impact strength for injection molding. This compound is especially suitable for the manufacture of parts which are subjected to high mechanical and thermal loads. Compared with commonly used glass fiber reinforced PBT compounds with a similar stiffness VESTODUR X4877 has an increased impact strength and also a higher strain at break. Information provided by degussa. Evonik Industries is the successor company to Degussa.
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Physical Properties	Original Value	Comments

Density	1.49 g/cc	ISO 1183
Water Absorption at Saturation	0.25 %	ISO 62
Linear Mold Shrinkage	0.0030 cm/cm	4 mm sheets with film gate at rim, mold temperature 60°C
Linear Mold Shrinkage, Transverse	0.010 cm/cm
Melt Flow	29.8 g/10 min @Load 2.16 kg, Temperature 260 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Shore D	79	ISO 868
Ball Indentation Hardness	105 MPa	H30; ISO 2039-1
Tensile Strength, Yield	105 MPa	ISO 527-1/2
Elongation at Break	5.5 %	ISO 527-1/2
Elongation at Yield	5.0 %	ISO 527-1/2
Tensile Modulus	5.20 GPa	ISO 527-1/-2
Charpy Impact Unnotched	7.00 J/cm² @Temperature -30.0 °C	ISO 179/1eU
	8.00 J/cm² @Temperature 23.0 °C	ISO 179/1eU
Charpy Impact, Notched	1.30 J/cm² @Temperature -30.0 °C	ISO 179/1eA
	1.80 J/cm² @Temperature 23.0 °C	ISO 179/1eA

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+16 ohm-cm	IEC 60093
Surface Resistance	1.00e+13 ohm	IEC 60093
Dielectric Constant	4.7 @Frequency 100 Hz	IEC 60250
Dielectric Strength	30.0 kV/mm	K20/P50; IEC 60243-1
Dissipation Factor	0.020 @Frequency 100 Hz	IEC 60250
Comparative Tracking Index	575 V	100 drops value; IEC 60112
	>= 600 V	Test Solution A CTI; IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear	50.0 µm/m-°C @Temperature 23.0 - 55.0 °C	Longitudinal; ISO 11359, DIN 53752
Deflection Temperature at 0.46 MPa (66 psi)	195 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	175 °C	ISO 75-1/-2
Vicat Softening Point	165 °C	Method B, 50 N; ISO 306
	190 °C	Method A, 10 N; ISO 306
Flammability, UL94	HB @Thickness 0.800 mm	IEC 60695
	HB @Thickness 1.60 mm	IEC 60695

Descriptive Properties
Electrolytic Corrosion	A1	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 go back to viewing the property data in MatWeb's normal format.

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