What is TPV?


TPV is a type of thermoplastic elastomer made by dynamically vulcanizing rubber (typically EPDM) within a thermoplastic matrix like polypropylene (PP). This process blends the elasticity of rubber with the processability of plastic.

Key Properties

  • Elasticity: Returns to its original shape after stretching or compression.
  • Chemical Resistance: Withstands oils, acids, and bases.
  • Weather Resistance: Performs well in fluctuating temperatures and outdoor conditions.
  • Durability: Long service life with good wear resistance.
  • Processability: Can be molded using standard thermoplastic techniques like injection molding and extrusion.
  • Recyclability: Scrap material can often be reprocessed.

Advantages

  • Combines rubber-like flexibility with plastic-like ease of processing.
  • Reduces production time compared to traditional thermoset rubbers.
  • Suitable for a wide range of applications: automotive seals, consumer goods, medical components, and construction materials.
  • Lightweight and fuel-efficient in automotive use.
  • Broad temperature range (-60°C to 135°C) and hardness options.

Disadvantages

  • Generally more expensive than simpler TPEs.
  • It may not match the extreme performance of fully cured rubbers in high-stress environments.

Requires careful formulation and processing to achieve optimal properties.


Applications


Automotive

TPV is widely used in the automotive sector due to its durability, flexibility, and resistance to weathering:

  • Weather seals and gaskets
  • Glass run channels
  • Mudguards and exterior trim
  • Dashboard covers and shift grips
  • Airbag covers and interior components

Construction & Building Materials

Its resilience and ease of processing make TPV ideal for:

  • Pipe seals
  • Window and door profiles
  • Expansion joints
  • Roofing components

Consumer Goods

TPV’s soft-touch feel and chemical resistance are perfect for:

  • Household appliance parts
  • Grips and handles
  • Flexible closures and seals

Electrical & Industrial

TPV offers excellent insulation and flexibility for:

  • Cable jackets and wire insulation
  • Tubing for fluid transfer
  • Industrial seals and connectors

Sporting & Leisure

Its elasticity and comfort make it suitable for:

  • Sporting equipment grips
  • Footwear components
  • Flexible gear parts