Quality Scores

Mechanics

Thermal

Chemical

UV ageing

Injection moulding difficulty

Recycling

Performance profile

Mechanical properties

Propriétés mécaniques de PBT (Polybutylène téréphtalate) – fibres de verre
Density	1.36 to 1.67 g/cm³ ISO 1183
Charpy notched impact	4.5 to 13 kJ/m2
Flexural modulus	3390 to 10600 MPa ISO 178
Flexural resistance	160 MPa
Tensile modulus	4310 to 11400 MPa ISO 527-1
Tensile resistance	71.8 to 152 MPa ISO 527-1, -2, Break
Tensile strain	1.6 to 4.5 % ISO 527-1, -2, Break

Chemical resistance and characteristics

Chemical resistance

Le PBT présente une excellente résistance aux solvants organiques, huiles minérales, graisses et carburants. Sensible à l'hydrolyse en milieu aqueux chaud (> 60 °C). Acides forts et bases concentrées dégradent le matériau. Bonne tenue aux détergents alcalins dilués.

Recommended applications

Connecteurs électriques et électroniques, boîtiers de capteurs automobiles, pièces sous capot moteur, équipements électroménagers, interrupteurs et prises, boîtiers de compteurs, pièces mécaniques de précision

Frequently asked questions

Implementation — Plastic injection

Recycling & Sustainability

🍽️ Food Contact & Certifications

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 design DFM Simulation Moldflow Subject choice Moulds for conception ISO 20457 Tolerancing

Technical data sheet

Acronym	PBT+GF
Family	PBT (polybutylene terephthalate)
Reinforced	fibreglass
Process	Injection Moulding
Standards	UL94 HB, RoHS, FDA
UL94	HB

🌡️ Thermal data

Telegram	40 °C
Tm	225 °C
HDT 0.45 MPa	90 °C
Range of use	-40 °C → 150 °C
Temperature transformation	240 °C → 270 °C
Injection removal	0.2 % → 0.5 %