✓ This material meets the criteria~ Specialized grades may meet this criteria
Quality Scores
Mechanics★★★☆☆
Thermal★★★☆☆
Chemical★★★★☆
UV ageing★★☆☆☆
Injection moulding difficulty★★★★☆
Recycling★★★☆☆
Performance profile
Mechanical properties
Mechanical properties of PBT (polybutylene terephthalate) – PTFE
Density
1.39 to 1.70 g/cm³ ISO 1183 ⋯
Charpy notched impact
5 kJ/m2
Flexural modulus
500 to 9280 MPa ISO 178 ⋯
Flexural resistance
80 MPa
Tensile modulus
2420 to 10200 MPa ISO 527-1 ⋯
Tensile resistance
36.0 to 121 MPa ISO 527-1, -2, Break ⋯
Tensile strain
2.5 to 3.5 % ISO 527-1, -2, Break ⋯
Chemical resistance and characteristics
Chemical resistance
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Recommended applications
Electrical and electronic connectors, automotive sensor housings, under-the-bonnet parts, household appliance equipment, switches and sockets, meter housings, precision mechanical parts
Frequently asked questions
Injection at 240–270 °C, mould at 60–80 °C. Pre-drying essential: 4 hours at 120 °C (highly hygroscopic). Rapid crystallisation → short cycles possible. Significant anisotropic shrinkage (1.5–2.0 %).
PBT is a recyclable thermoplastic. Its recycling is common in the electronics industry (WEEE). Post-consumer recycled grades are available for non-critical applications.
Standard PBT is not certified for food contact. For food applications, prefer PP, PE, PETG, or POM-FDA.
Hybster Team
Hybster Engineering Team
Design Office – Plastics Design & Engineering
The Hybster Design Office brings together the company's plastic engineering, mechanical, and industrialisation engineers. The team supports projects from the ideation phase through to series validation, incorporating Design For Manufacturing (DFM), rheological simulation, material selection, and mould design. It serves the automotive, electronics, electrical, EV charging, and industrial sectors.
Injection moulded part designDFMSimulation MoldflowSubject choiceMoulds for conceptionISO 20457 Tolerancing