Bringing the Best Materials Together
To help automakers meet demanding emissions requirements, DuPont has developed materials for extremely low permeation applications in fuel tank flanges, fuel interconnects, vent hoses and tubing. DuPont offers fluoropolymers and tough, antistatic thermoplastics to reduce permeation and dissipate static build-up. And, these materials have the durability needed for long-life performance requirements.
For example, a fuel sender module molded with Delrin® acetal features low permeation, excellent retention of stiffness and strength and minimal swelling when immersed in fuel. It also shows better strength, stiffness and toughness compared to other acetals. Delrinâ acetal also is ideal for snap-fit joints, which reduce parts count and cost.
DuPont fluoropolymers, used in hoses and tubing, allow near-zero permeation with automotive fuels. Teflon® and Tefzel® also are chemically inert to all types of automotive fuels including biodiesel and sour fuel and can easily provide 15-year durability. There are several design options, depending on temperature, pressure, permeation and flexibility requirements. Based on your specific requirements, we can recommend the most cost-effective design and supplier to meet your needs.
