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DuPont™ Crastin® PBT: Electrical Plastic for Connectors, Relays and Switches

DuPont™ Crastin® PBT thermoplastic polyester resins, which are based on polybutylene terephthalate, feature excellent dielectric and electrical insulation properties and are available in high arc-resistant grades, making them the ideal electrical plastic for connectors, relays and switches. 

With outstanding mechanical and physical properties, DuPont™ Crastin® PBT resins deliver greater reliability, increased durability and a cost advantage over many competitive materials used in electrical and electronic applications. 

For circuit breakers, relays, and connectors, DuPont™ Crastin® PBT resins deliver low embrittlement at high temperatures, dimensional stability, easy processing, and low out-gassing.

For encapsulation of pumps, valves, and solenoids, DuPont™ Crastin® PBT resins offer a unique combination of high flow, high temperature resistance, excellent barrier to moisture, and resistance to thermal shocks.

For more information, including data sheets, please visit the DuPont™ Crastin® PBT resin website.

Case Study:

Encapsulation

Crastin® withstands high thermal shocks and encapsulation

The high melt temperature of Crastin® enables the cavity to be filled without damaging the copper wire. The toughness of this grade ensures compatibility with the thermal expansion of the metal insert. » Learn More