Quality Scores

Mechanics

Thermal

Chemical

UV ageing

Injection moulding difficulty

Recycling

Performance profile

Mechanical properties

Mechanical properties of PBT (polybutylene terephthalate) + PS – glass fibres
Density	1.43 to 1.59 g/cm³ ISO 1183
Charpy notched impact	6.9 to 10 kJ/m2
Flexural modulus	5300 to 9820 MPa ISO 178
Flexural resistance	160 MPa
Tensile modulus	9250 to 11500 MPa ISO 527-1
Tensile resistance	119 to 120 MPa ISO 527-1, -2, Break
Tensile strain	1.8 to 3.0 % ISO 527-1, -2, Break

Chemical resistance and characteristics

Chemical resistance

Recommended applications

Packaging
Sheet / plate
General purpose
Isolation
Home appliances
Electrical/Electronic Applications
Home appliance components
Toys
Containers
Mousse

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+PS+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 %