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.