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OTPEs Deliver Performance, Processability and Recyclability

Thermoplastic elastomers are steadily replacing thermoset rubber in demanding automotive applications because they enhance rubber's benefits with the design freedom, streamlined processing and recyclability of thermoplastics. For example, Multiflex® styrene-ethylene-butylene-styrene (SEBS)-based TPE compounds from Multibase, a Dow Corning Company, combine an SEBS rubber to achieve softness and resilience and a polyolefin for easy processing and complete recyclability.

Multibase's TPEs help you address top challenges such as cost reductions through streamlined processing. For instance, Multiflex TPE compounds can be easily co-injection molded with a structural plastic to produce a cowl vent with a bonded TPE seal.

In addition to processing benefits vs. thermoset rubber, the Multiflex family of TPE compounds offers:

  • Excellent colorability and aesthetics and resistance to color degradation, particularly after exposure to UV radiation
  • Low compression set within a wide temperature range
  • High fatigue resistance
  • Excellent resistance to alcohols, acids, aqueous solutions, bases and detergents
  • High thermal properties

Dow Corning offers these materials in a range of hardnesses (20 Shore A to 50 60 Shore D) and densities (0.90 g/cm3 to 1.20 g/cm3). They maintain high performance when exposed to temperature extremes from -50 °C to 120 °C.

Solving Your Application Challenges

Due to their proven performance, Multiflex TPEs are widely used in industrial sectors such as:

  • Consumer goods
  • Window and doors seals
  • Interior and exterior Automotive interior applications

Product highlights include:

  • Multiflex® TPE A6221 CUV - This easily colorable, UV-stable TPE provides unique, long-term performance for many indoor and outdoor applications, such as automotive parts, that are exposed to prolonged, direct sunlight.
  • Multiflex® TPE SiE A 4013 CU1 - Resistant to scratching and UV light, this silicone-enriched TPE is well suited for a variety of interior and exterior applications, including vehicle components where maintaining aesthetics is critical.
  • Multiflex® TES XX10 series (Hardness ranging from 47 to 91) - Also designed for indoor and outdoor applications, this styrenic-based TPE family resists degradation from UV rays.

Find out more by contacting your Dow Corning representative.

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