Hytrel® Material | Copolyester Elastomer

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The versatile, resilient, durable copolyester

Hytrel^® drives innovative design, enabling the development of unique parts with superior performance characteristics. This versatile material can flex in multiple directions, cycle after cycle, long after rubber would break. Its durability has made it an essential ingredient in automotive components such as Constant Velocity Joint (CVJ) boots, which must endure a wide range of temperatures and tough conditions over the life of a vehicle.

Hytrel^® TPC-ET thermoplastic elastomer combines the flexibility of rubber with the strength and processability of thermoplastics. Manufacturers prefer parts made with Hytrel^® for their resilience and heat and chemical resistance, as well as their strength and durability.

Setting new standards for functional sustainability

All Hytrel^® ECO B materials are produced in a plant powerd by electricity from 100% renewable sources. Plus, this innovative thermoplastic elastomer uses up to 72% second-generation biomass, enables over-molding on rigid thermoplastics, and allows rework and recycling of scrap.

Advantages

Flexibility and resilience icon

Flexibility and resilience

Hytrel^® flexes and recovers, providing excellent flex fatigue and tear resistance, low hysteresis and spring-like properties.

Strength and abrasion resistance icon

Strength and abrasion resistance

Hytrel^® offers exceptional toughness, impact and creep resistance.

Easy processing (wide process window with thermal stability) icon

Easy processing

Hytrel^® can be processed by injection, blow or rotational techniques; it can be extruded into tubes, profiles, fibers/filaments, sheet, blown or cast film, web coating, nonwovens and wire and cable jacketing.

Broad service temperature (-40°C to 150°C) icon

Broad service temperature

Flexibility at low temperatures, and good retention of mechanical properties at high temperatures.

Chemical resistance (to hydrocarbons & other fluids) icon

Chemical resistance

Hytrel^® stands up to oils, fuels, hydrocarbon-based solvents, and many other chemicals.

Enables over-molding and innovative designs icon

Enables over-molding and innovative designs

Hytrel^® is compatible with other thermoplastics such as PC, ABS and polyesters, allowing over-molding and coextrusion.

Allows rework and recycling icon

Allows rework and recycling

The exceptional melt stability and thermoplastic nature of Hytrel^® allow the recycling of processing scrap. Hytrel^® can be reground and blended with virgin polymer.

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Sustainability

Based on a biomass approach, the newest Hytrel^® grades are true drop-in replacements with no need to requalify products or retool.

High-performance Hytrel®

Hytrel^® is a plasticizer-free thermoplastic polyester elastomer with outstanding flexibility, stable mechanical performance over a wide temperature range, and straightforward processing characteristics.

Broad flexibility range

With Shore D hardness of 30 to 80, Hytrel^® bridges the performance of rubbers and thermoplastics.

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Solutions for regulated industries

Hytrel^® offers grades for food contact, and special and premium control grades for medical applications.

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High melt strength

High-viscosity Hytrel^® is ideal for blow molding and extrusion, allowing for efficient production.

Innovative concepts

Hytrel^® allows advances in the design of injected parts, extruded films and filaments, foams, and more.

Functional sustainability

Hytrel^® ECO B, with up to 72% biomass, helps improve the environmental footprint of your products.

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High-performance Hytrel® foam

Reduce impact and noise with 20% less weight and 15% more resilience.

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Applications

Sportswear and athletic goods

Lightweight, breathable Hytrel^® is resilient and strong to handle even the toughest sporting goods challenges.

Automotive boots & bellows

For over 25 years, Hytrel^® has been used for CV joint boots and bellows that last the life of a vehicle.

Consumer electronics

From handheld devices to household appliances, Hytrel^® provides good looks and durability.

Medical devices

SC and PC grades of Hytrel^® offer excellent fatigue resistance over a wide temperature range.

Seals and gaskets

Resilience and strength when exposed to heat and chemicals makes Hytrel^® ideal for seals and gaskets.

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Specialty films and garments

Choose Hytrel^® when you need flexibility combined with tear- and abrasion resistance.

Air ducts

Hytrel^® HTR888 BK190A provides a lightweight solution for cold air ducts and proven noise reduction.

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Wire and cable

Hytrel^® combines hardness, stiffness, high-temperature performance, and chemical resistance for wire and cable applications.

Case studies & related content

Chemical Category

Copolyester Elastomer

Technical data sheets (TDS)

More product info

Safety data sheets (SDS)

Resources

Proven NHFR Solutions for E&E Devices

Enabling Better Treatment Options Through Better Devices

Making your Home Appliances Safer, Smarter and Better

New Hytrel^® Foam Meets Demand for Innovative, Sustainable Consumer Applications

Next-Level Sporting Goods Solutions (NA)

Hytrel^® ECO B Thermoplastic Elastomer Sets New Standard for Functional Sustainability (NA)

Flame Retardant Solutions - Halogenated Products (NA)

Flame Retardant Solutions - Non-halogenated Products (NA)

Materials Solutions for Home Appliances

Optimize Robot Performance with Engineering Polymers

Hytrel ^® Cosmetics Product Sheet

Celanese Material Solutions for Fuel Cell Systems

Hytrel^® Literature

Optical fiber cable solutions from Celanese

Featured Grades

Hytrel^® HTR8745 BK320

Hytrel^® HTR8801 NC020

Hytrel^® HTR8808 BK316

Hytrel^® HTR8813 BK320

Hytrel^® HTR8895 BK320

Hytrel® HTR8936 BK320

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