Fuel Line Systems

For more than 30 years, VESTAMID® L compounds have been successfully used as a material for the fuel lines of big-name automobile manufacturers. Worldwide, VESTAMID® L is the most widely used polyamide 12 in fuel lines. We achieved this position thanks to

• consistently high product quality
• dependable delivery and excellent service
• innovative solutions in the further development

VESTAMID® compounds are used to manufacture fuel lines consisting of both monowall tubing and multi-layer tubing.

• We responded to the different requirements of a variety of automobile manufacturers by developing a series of extrusion compounds in subtly different gradations.
• Most of them are suitable for both gasoline and diesel fuels.
• For vehicles with elevated engine compartment temperatures, we have designed special high-temperature resistant compounds particularly for use in gasoline or diesel systems.
• Our compounds for multilayer tubing are optimized so that they can be extruded at speeds comparable to those of monowall tubing.
• Certain multi-layer tubing designs use no adhesion promoters and can be further fabricated nearly without having to change the usual monowall tubing technology.
• We provide eight multi-layer tube systems with various barrier layers; other are under development.
• For inexpensive quick connection of fuel lines we offer reinforced and non-reinforced, partially weldable VESTAMID® L and VESTAMID® D compounds for quick-connect fittings and their internal retainers.
• For fuel filters VESTAMELT® hotmelt adhesives allow filter elements to bond reliably. Filter end caps made of VESTAMID® L offer excellent flexibility in addition to outstanding resistance. They serve as sealing elements if constructed for this purpose, making it possible to dispense with additional O-rings. Moreover, they weld well to the filter material, which is typically made from VESTODUR®.

Additionally to all developments of tubing compounds we offer substantial services:

• technical support
• development of test methods
• testing under contract (or referral to suitable companies/institutes with which we cooperate)
• assistance with permitting procedures
• mold and tool design
• assistance with equipment selection, acquisition and startup
• operational training for customer employees
• assistance/consulting in the development of standards and specifications
• development of customized compounds for special uses