Engineering Thermoplastics
PBT Standard — Polybutylene Terephthalate Standard
PBT is a semi-crystalline polyester known for its excellent electrical insulation properties, good chemical resistance (especially to solvents and automotive fluids), and high stiffness. It processes easily and exhibits low moisture absorption and excellent dimensional stability.
PBTPBTPValoxCelanexUltradur
Manufacturers
4
Grades
2
Applications
4
Equivalents
0
Physical Properties
- Density
- 1.30-1.32 g/cm³
- Water Absorption (24h)
- 0.1-0.2 %
- Transparency
- Opaque
- Shrinkage
- 0.3-0.8 %
Mechanical Properties
- Young's Modulus
- 2.5-3.5 GPa
- Tensile Strength
- 50-65 MPa
- Elongation at Break
- 5-25 %
- Impact Strength (Izod)
- 5-10 kJ/m
Thermal Properties
- Glass Transition Temperature
- 20-50 °C
- Melting Point
- 220-230 °C
- Continuous Service Temperature
- 100-130 °C
- Heat Deflection Temperature
- 50-100 °C (0.45 MPa)
Electrical Properties
- Dielectric Constant
- 3.0-3.5
- Volume Resistivity
- 10^13-10^15 Ohm-cm
- Dielectric Strength
- 20-30 kV/mm
Chemical Resistance
- Acids
- Good
- Bases
- Fair
- Solvents
- Excellent
- UV Resistance
- Fair (requires stabilization)
Sustainability
- Recyclability
- Recyclable
- Recycling Code
- 7 (Other)
- Carbon Footprint
- Moderate
Manufacturing compatibility
Injection MoldingExtrusion
Applications
Electrical connectors
Automotive components
Appliance housings
Sensor housings
Available grades
PBT GF30PBT Standard