Low-Washout Conductive Fuel Lines for Hybrid Cars | Rilsan^® PA11 Case Study

Why Low Washout Fuel Lines Matter

In hybrid vehicles, fuel can remain stagnant in the lines for extended periods while the car operates in electric mode. This stagnation increases the risk of component extraction from conventional plastic tubing, leading to fuel contamination and reduced system integrity. Low washout materials significantly reduce this leaching effect, helping preserve fuel purity and extend the lifespan of the fuel system.

Conductivity Without Compromise

Conductive fuel lines are essential for dissipating static electricity, ensuring safety and compliance with stringent automotive regulations. However, traditional conductive materials often swell when exposed to fuel, which degrades their performance. Tube swelling directly impacts conductivity, posing a serious challenge for hybrid fuel systems. 

Rilsan® PA11: Advanced Material for Low Washout Tubing

Arkema has developed a versatile material platform that enables tier suppliers and automakers to produce custom multi-layer conductive tubing (4 or 5 layers) designed to resist swelling and maintain conductivity. This innovation supports long-term reliability and performance in hybrid applications.

Key Benefits for Hybrid Vehicle Manufacturers

• Improved fuel system reliability during prolonged idle periods
• More sustainable material choice using bio-based polyamide 11
• Tailored multi-layer designs for specific performance needs

download the case study