Celanese®
Hytrel® TPC-ET 5555HS
Hytrel TPC-ET 5555HS is a medium-modulus thermoplastic polyester elastomer (TPC-ET) with a nominal hardness of 55D. It is a heat- and oil-stabilized version of Hytrel 5556, offering superior heat-ageing stability and enhanced resistance to oils and greases. The material provides excellent toughness, high impact strength, and outstanding resistance to creep, tearing and flex fatigue. Hytrel TPC-ET 5555HS maintains flexibility at low temperatures and retains mechanical properties under elevated temperatures. It contains a discoloring antioxidant, making it unsuitable for light-colored finished products.
Key Features:
- Medium modulus with balanced flexibility
- Special heat- and oil-stabilized formulation
- Superior resistance to heat ageing and hot oils
- High toughness and impact strength
- Excellent resistance to creep, tearing and flex fatigue
- Good chemical resistance to oils, fuels and industrial fluids
- Contains discoloring antioxidant (not suited for light-colored parts)
- Plasticizer-free with long-term property retention
Processing Form:
- Injection Molding
- Film Extrusion
- Extrusion
- Sheet Extrusion
- Other Extrusion
- Casting
- Thermoforming
Processing Notes:
Drying is recommended at 100°C for 2–3 hours to reach a processing moisture content below 0.08%. Hytrel TPC-ET 5555HS has an optimal melt temperature of 230°C and a mold temperature of 45–55°C. For extrusion, drying at 100°C for 2–3 hours to reach a moisture content below 0.06% is recommended, with an optimal melt temperature of 225°C. Hytrel is incompatible with acetal and PVC. Please refer to the injection molding and extrusion guidelines for detailed recommendations.
Applications:
Automotive, Fluid Power, Electrical, Consumer Goods, Equipment Industry.
Hardness:
55D
Delivery Form:
Pellets
Key Features of Hytrel TPC
Flexibility & Resilience
Unlike traditional rubber, Hytrel TPC can flex in multiple directions, cycle after cycle, long after rubber would break.
Durability
Hytrel TPC is an essential ingredient in applications that must endure a wide range of temperatures and tough conditions during years of service.
Enhanced Chemical Resistance
Exhibits excellent resistance to hydrocarbons and other fluids, making it suitable for demanding environments.
Sustainable Options
The Hytrel TPC ECO-B series utilizes a biomass balance approach, incorporating up to 72% renewable content without compromising material properties.
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