30 July 2025

A new PBT Dinadur solution for e-applications

Nordmann partner UBE Composites Europe has developed Dinadur PBT1S25 G30V0 H, a new, high-performance polybutylene terephthalate (PBT) that has been specially designed to meet the requirements of the electrical and electronics industry and e-mobility. The material contains 30% glass fiber, is heat-stabilized, halogen-free, flame-retardant and has a V0 UL94 certification for all colors.

An outstanding feature of Dinadur PBT1S25 G30V0 H is its exceptional creep resistance: with a Comparative Tracking Index (CTI) of 600 V according to IEC 60112, the material achieves the best possible rating – a decisive advantage for applications where electrical insulation and safety are paramount.

Technical highlights at a glance

CTI 600 V – highest creep resistance for maximum safety
Excellent insulation properties – ideal for high-voltage applications
UL 94 V0 – flame retardant, halogen- and phosphorus-free
Very good flowability – for complex geometries and miniaturization
High toughness – mechanically resilient and durable
Excellent dyeability – for individual design requirements

Technical data sheet

PBT1S25 G30V0 H	Units	Method	D.A.M. Value
Tensile modulus (1 mm/min)	MPa	ISO 527	11000
Stress at break (5 mm/min)	MPa	ISO 527	100
Strain at break (5 mm/min)	%	ISO 527	2,2
Flexural modulus (2 mm/min)	MPa	ISO 178	12200
Flexural strength (2 mm/min)	MPa	ISO 178	165
Charpy notched impact strength (23°C)	kJ/m2	ISO 179/1eA	9
Charpy unnotched impact strength (23°C)	kJ/m2	ISO 179/1eU	40
Melt flow index M.F.I. (260°C, 2.16 kg)	g/10min	ISO 1133	5
Heat deflection temperature HDT (1.80 MPa)	°C	ISO 75-A	207
Flammability classification (0.4 / 0.8 mm)	V0-V1-V2VHB	UL 94	V0
Glow wire flammability index, GWFI (1 / 2 mm)	°C	UNE-EN 60695-2-13	960
Glow wire ignition test, GWIT (1 / 2 mm)	°C	UNE-EN 60695-2-13	775
Comparative Tracking Index (CTI)	V	IEC 60112	600

Typical areas of application

EV chargers and connectors
Electronic components and devices
High-voltage connectors
EV battery components
Miniaturized electronics

Dinadur PBT1S25 G30V0 H offers a unique combination of electrical safety and ease of processing – setting new standards for engineering plastics in safety-critical applications.