Hytrel® TPC-ET 4069

Hytrel TPC-ET 4069 is a low-modulus thermoplastic polyester elastomer (TPC-ET) with a nominal hardness of 40D. It offers excellent toughness, resilience, high impact strength and outstanding resistance to creep, flex fatigue and tearing. The material maintains flexibility at low temperatures and retains mechanical properties at elevated temperatures. Hytrel TPC-ET 4069 contains a non-discoloring stabilizer and provides good resistance to industrial chemicals, oils and solvents. It can be processed using conventional thermoplastic techniques, including injection molding and extrusion.

Key Features:

• Low modulus with excellent flexibility
• High tensile strength and toughness
• Outstanding resistance to creep and flex fatigue
• Good resistance to oils, solvents and industrial chemicals
• Non-discoloring stabilizer for enhanced color stability
• Light-stabilized grade suitable for light exposure
• Plasticizer-free with long-term property retention

Processing Form:

• Injection Molding
• Film Extrusion
• Extrusion
• Sheet Extrusion
• Other Extrusion
• Coating
• 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 4069 has an optimal melt temperature of 225°C and a mold temperature of 40°C. For extrusion, drying at 90–110°C for 2–3 hours with a moisture level below 0.06% is recommended, with an optimal melt temperature of 215°C. Hytrel is incompatible with acetal and PVC. Please refer to the injection molding and extrusion guidelines for additional details.