Fluid Management Tubing & Quick Connectors


Our materials enable mono- or multi-layer tube construction for direct contact with automotive fluids

Backed by a reliable supply chain combined with robust technical support, DuPont solutions are specified for passenger, commercial, and off-road vehicles to manage fluids such as oil, fuel, coolant, and refrigerant.


Solutions for the entire vehicle

As temperatures rise under the hood, our materials for in-tank and external fuel conveying applications facilitate:

  • Lightweighting
  • Lower emissions
  • Sustainable solutions
  • Better fuel efficiency
  • Optimized thermal management
  • Biofuel compatibility
  • Function integration
  • Lower costs

Performance advantages include: 

  • High flexibility
  • High heat resistance
  • High burst pressure
  • Low extractable content
  • Excellent hydrolysis resistance under high temperature
  • Low moisture vaporing rate  
  • Road salt stress-cracking resistance
  • Very low soluble and insoluble extraction levels in aggressive fuels 
  • Tie-layer-free adhesion to ethylene-vinyl alcohol copolymer (EVOH) barrier layer 

Typical applications include:

  • Fuel lines
  • Fuel vapor lines 
  • Air brake lines 
  • Air conditioning (HVAC) lines
  • Selective catalytic reduction (SCR) lines
  • Engine and transmission oil cooler (EOC & TOC) lines 
  • Cooling pipes for internal combustion engines, hybrid, and full-electric vehicles


Innovative products

For internal combustion engines, hybrid, or full-electric vehicle thermal management systems, DuPont™ Zytel® long-chain polyamides (PA612, PA610, and PA1010) exhibit excellent hydrolysis resistance at elevated temperatures. They enable high flexibility for mono- or multi-layer tubing when used with DuPont™ Multiflex® TPO or other polyolefins such as Bynel™ PP (Bynel™ is a trademark of Dow or an affiliated company of Dow) as alternatives to metal pipes and/or ethylene propylene diene monomer (EPDM) cooling lines. 

DuPont™ Vamac® AEM is recognized as a proven elastomer solution for high-temperature and flexible oil cooler hoses compatible with different types of oils including new EV fluids. 

Quick connectors made of reinforced materials such as Zytel® PA66, Zytel® HTN PPA, or Zytel® LCPA complete the fluid management lines and offer an integrated full-plastic solution.


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