✓ 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) + SAN – glass fibres
Density
1.34 to 1.54 g/cm³ ISO 1183
Charpy notched impact
7.0 to 9.0 kJ/m2
Flexural modulus
6940 to 10000 MPa ISO 178
Flexural resistance
160 MPa
Tensile modulus
7,500 to 10,600 MPa ISO 527-1
Tensile resistance
120 til 136 MPa ISO 527-1, -2, Break
Tensile strain
1.9 to 2.3 % ISO 527-1, -2, Break
Chemical resistance and characteristics
Chemical resistance
<
Recommended applications
Electrical/Electronic Applications
Mixtures
General purpose
Cosmetic packaging
Household
Home appliances
Automotive Applications
Food applications (general)
Personal hygiene/care
Thin-walled parts
Frequently asked questions
GF grades require higher injection pressures. Strongly anisotropic shrinkage (perpendicular to fibres > along axis). Increased nozzle and mould wear — nitrided steels recommended. Drying identical to base grade.
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