Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

DuPont Hytrel 4556 TPEE

DuPont Hytrel 4556 is a thermoplastic elastomer (TPEE) offering exceptional toughness, high-temperature resistance, and excellent fatigue performance. This grade balances flexibility with strength, enabling dynamic applications like automotive air ducts, power tool housings, and sporting goods components. It processes efficiently via injection molding and extrusion while maintaining dimensional stability and chemical resistance across demanding environments.
  • dupont hytrel 4556 tpee_b93545e7
  • dupont hytrel 4556 tpee_b93545e7

Features Of DuPont Hytrel 4556 TPEE

  1. Excellent balance of flexibility and mechanical strength at elevated temperatures

  2. Outstanding resistance to oils, greases, and common automotive fluids

  3. Good processability via injection molding and extrusion with low moisture sensitivity

  4. Retains elasticity and impact performance down to –40 °C

  5. Low compression set for durable dynamic sealing and gasketing applications

Typical Applications Of DuPont Hytrel 4556 TPEE

  1. Automotive under-hood components including air ducts and fluid handling connectors

  2. Industrial power transmission belts and timing belt covers

  3. Flexible couplings and vibration-damping mounts in machinery

  4. High-performance sporting goods such as ski boot cuffs and bicycle suspension bushings

  5. Medical device housings requiring sterilization compatibility and tactile feedback

Specifications Of DuPont Hytrel 4556 TPEE

Chemical TypeThermoplastic Polyester Elastomer (TPEE)
Product FormNatural pellets, free-flowing
AppearanceOpaque off-white to light tan granules
Primary ApplicationsDynamic mechanical parts requiring fatigue resistance and thermal stability
Key FeaturesHigh tensile strength, excellent creep resistance, broad service temperature range
BenefitsDesign freedom vs. thermoset elastomers; recyclable processing; no vulcanization required
Density (ASTM D792)1.21 g/cm³
Melt Flow Rate (230 °C/2.16 kg, ASTM D1238)25 g/10 min


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