Evonik manufactures a range of polybutylene terephthalate (PBT) compounds and supplies it 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
Applications
VESTODUR® compounds can be used for a wide range of applications, for example, for thin-walled injection-molded parts in electrical engineering applications, for especially dimensionally stable components of high surface quality in the automotive industry, as a barrier layer in multilayer fuel lines, for laser-markable components, and in the cable industry. High-molecular extrudable VESTODUR® specialty products have come to occupy a leading position as materials for secondary fiber optic jacketing, because they fulfill the requirements perfectly.
| Original Document | Technical Datasheet(English) | |||
| Features | High StrengthHigh Stiffness/RigidityHeat StabilizedWear/Abrasion ResistanceLow Friction/WearDimensional StabilityCreep ResistantLaser MarkableWeather ResistanceESCRChemical ResistanceFilled & Reinforced | |||
| Processing | Injection | |||
| Reinforced | 10% Glass Fiber | |||
| Physical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
|---|---|---|---|
Density/Specific Gravity | *** g/cm³ | ISO 1183 | 23 °C |
Melt Volume Flow Rate(MVR) | |||
250℃/2.16 kg | *** cm³/10 min | ISO 1133 | |
Mold Shrinkage | |||
Flow | *** % | ISO 294-4 | |
Across Flow | *** % | ISO 294-4 | |
Water Absorption | *** % | ISO 62 | 23 °C, saturation |
| Mechanical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Tensile Modulus | *** Mpa | ISO 527-1/-2 | |
Tensile Strength | |||
Yield | *** Mpa | ISO 527-1/-2 | 50 mm/min |
Tensile Elongation | |||
Yield | *** % | ISO 527-1/-2 | 50 mm/min |
Break | *** % | ISO 527-1/-2 | 50 mm/min |
| Impact | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Charpy Notched Impact Strengh | |||
-30℃ (-22℉) | *** kJ/m² | ISO 179/1eA | complete break |
23℃ (73℉) | *** kJ/m² | ISO 179/1eA | complete break |
Charpy Unnotched Impact Strengh | |||
-30℃ (-22℉) | *** kJ/m² | ISO 179/1eU | complete break |
23℃ (73℉) | *** kJ/m² | ISO 179/1eU | complete break |
| Hardness | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Shore D hardness | *** D | ISO 868 | |
Ball Indentation Hardness | *** Mpa | ISO 2039-1 | H 30 |
| Thermal | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Heat Deflection Temperature(HDT) | |||
0.45 Mpa (66 psi)（4.6kg/cm²） | *** °C | ISO 75 | Method B |
1.8 Mpa (264 psi)（18.6kg/cm²） | *** °C | ISO 75 | Method A |
Vicat Softening Temperature(VST) | *** °C | ISO 306 | 10 N |
Vicat Softening Temperature(VST) | *** °C | ISO 306 | 50 N |
Coefficient of Linear Thermal Expansion | |||
Flow | *** E-6/K | ISO 11359 | 23-55°C |
Across Flow | *** E-6/K | ISO 11359 | 23-55°C |
Melt Temperature(Tm) | ***~*** °C | ISO 11357 | DSC |
| Flammability | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Flame Rating | |||
HB | *** mm | UL94 | |
HB | *** mm | UL94 | |
Oxygen Index | *** % | ISO 4589 | |
Glow Wire Flammability Index(GWFI) | |||
2mm | *** °C | IEC 60695-2-12 | |
Glow Wire Ignition Test(GWIT) | |||
2.0mm | *** °C | IEC 60695-2-13 | |
| Electrical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Volume Resistivity | *** Ohm-cm | IEC 60093 | 23°C |
Surface Resistivity | *** Ohm | IEC 60093 | 23°C |
Dielectric Constant(Permittivity) | |||
100Hz | *** - | IEC 60250 | 23°C |
1MHz | *** - | IEC 60250 | 23°C |
Dissipation Factor | |||
100Hz | *** E-4 | IEC 60250 | 23°C |
1MHz | *** E-4 | IEC 60250 | 23°C |
Comparative Tracking Index (CTI) | |||
Solution A | *** V | IEC 60112 | |
Solution A | *** V | IEC 60112 | 100 drops value |
Dielectric Strength | *** kV/mm | IEC 60243-1 | K 20/P 50 |
Electrolytical Corrosion | *** - | IEC 60426 |
The information presented on this datasheet was acquired by AjiEng.com from the producer of the material. AjiEng.com makes substantial efforts to assure the accuracy of this data. However, AjiEng.com assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.
