Mechanic looking at engine from under the hood

Under the hood  

Improve the performance and cost-effectiveness of under-the-hood automotive components with thermoplastic vulcanizates, EPDM rubber and butyl rubber, and polypropylene.

Applications and benefits

Rely on Vistalon™ ethylene propylene diene (EPDM) rubber in automotive coolant, air and heater hoses, as well as AC and brake hose formulations to achieve:

  • High tear strength
  • High temperature and long-term aging resistance
  • Excellent flexibility
  • Easy mixing and processing

Common industry uses include:

  • General purpose hose
  • Heat-resistant hose
  • High-heat-resistant hose
  • Brake hoses

Recommended products:

Vistalon ethylene propylene diene (EPDM) rubber is a copolymer specifically engineered for use in industrial power transmission drive belts.

Developed for peak performance, specifically in the grinding manufacturing process, Vistalon™ 706 EPM offers good tear strength and flex-crack resistance. It outperforms chloroprene rubber in heat aging resistance and is a lower-cost alternative to hydrogenated nitrile rubber.

Key benefits include:

  • Extended belt lifetime in a high-temperature environment
  • High load to sustain startup
  • High resistance to pulley clogging
  • Quieter running

Recommended products:

Rack and pinion steering boot suppliers around the world rely on Santoprene thermoplastic vulcanizates (TPVs) as tough, chemical- and grease-resistant materials that maintain their flexibility across a wide range of extreme temperatures and road conditions.

Key benefits include:

  • Low weight and tight dimensional tolerances
  • Outstanding sealability
  • Excellent flex fatigue
  • Processing ease and recyclability

Recommended products:

Excellent sealing properties, durability, and chemical and heat resistance make Santoprene thermoplastic vulcanizates (TPVs) lightweight, cost-effective replacements for conventional EPDM and chloroprene rubber materials in demanding under-the-hood air induction systems.

Key benefits include:

  • Cost savings through consolidation – Santoprene TPVs deliver cost-saving opportunities to consolidate or eliminate parts, such as metal fasteners, through a combination of:
    • Excellent bonding properties
    • Suitability for a variety of one- and two-component blow-molding processing
    • Compatibility with polypropylene (PP), polyamide and other thermoplastic substrates
  • Durable and efficient – Santoprene™ TPV 101-87 and 103-40, 50 grades are suitable for outside and clean air induction applications where durability and -40°C to 135°C (-40°F to 275°F) temperature resistance are essential. Manufacturers gain design freedom because components made from TPVs and PP can be created using monolayer or sequential 3-D extrusion blow molding or injection molding.
  • Attractive and recyclable – The attractive Santoprene TPV finish complements new under-hood aesthetics. Santoprene TPV offers the potential for in-process and end-of-life recyclability.

Recommended products:

ExxonMobil™ PP is designed for high-performance automotive and other battery case applications.

Key benefits:

  • Enhanced product performance
  • Good heat and UV resistance
  • Cost reduction opportunities
  • Distinct ivory appearance

Recommended products:

ExxonMobil PP

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Product solutions

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    Case story highlighting how Santoprene thermoplastic vulcanizate (TPV) reduces cost and improves performance of steering boots.

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