All materials
Engineering plastics
PBT – Polybutylene Terephthalate
PBT is a semi-crystalline engineering polyester with very good dimensional stability, low water absorption, and excellent electrical properties. Due to these properties, it is among the most frequently used materials for electrical engineering, the automotive industry, and connector technology.
Advantages
- Low water absorption
- Good dimensional stability
- Excellent electrical insulation
- Good chemical resistance
- Good heat resistance
- Low shrinkage
- Good surface appearance
- Easy injection molding
Disadvantages
- Lower toughness than PA
- UV sensitivity without stabilization
- Lower impact resistance at low temperatures
Typical applications
ConnectorsCoilsSensorsElectronics housingsRelaysSwitchesAutomotive connectorsLED lightingElectric motorsCharging systems
Processing
Injection moldingExtrusion
Most common modifications
PBT GF15PBT GF30PBT FRPBT Laser MarkablePBT Heat StabilizedPBT Hydrolysis ResistantPBT Impact ModifiedPBT Conductive