Award-Winning Innovation with Honda

Because You Imagined… Sustainability & Performance

Award-winning innovation, better performance with Zytel® HTN

Through advanced engineering and collaborative partnerships, DuPont provides innovative, tailored solutions for industry challenges. Cold start is challenge for vehicles that run on 100 percent ethanol (E100) because E100 does not form a combustible vapor at cold temperatures. In an effort to improve the cold start performance and efficiency of E100 vehicles, Honda created a new fuel injector using DuPont™ Zytel® HTN resin for its ethanol-powered City and Fit cars in Brazil.

The Delphi Multitec® fuel injectors, overmolded with Zytel® HTN PPA, has an integrated heating device that rapidly heats ethanol fuel so it can evaporate and be ignited more efficiently in cold weather. Zytel® HTN was selected to overmold the component because it offers lower melt viscosity than competing PPA, which helps protect the sub-assembly during molding.  It also offers better elongation than other PPAs to survive thermal cycling without stress cracking. The result: better cold starting for the cars and an industry “Most Innovative Use of Plastics” award for Honda, Delphi and DuPont from the Society of Plastics Engineers (SPE®).

Replacing Metal, Reducing Costs

DuPont™ Zytel® HTN resin is a family of cost-effective polyamides with great thermal performance, sustained strength, and easy processability. Zytel® HTN can replace metal parts that must withstand high temperature tolerances (such as engine cooling, handheld devices, and non-halogenated connectors), while reducing total cost and weight by consolidating the number of parts used.

Because You Imagined… sustainability and performance.

Look to DuPont™ Zytel® HTN. It enables:

  • Stiffness
  • High strength
  • Excellent creep resistance
  • Broad temperature toleration
  • Versatile and ease of processing
  • Fatigue-resistance

Giving Shape to Smart Ideas. That’s what DuPont can do with you.


SPE is a registered trademark of the Society of Plastics Engineers.

More On Zytel® HTN