Hytrel® TPC-ET 3078 BK176

Hytrel TPC-ET 3078 BK176 is a very low-modulus thermoplastic polyester elastomer (TPC-ET) with a nominal hardness of 30D. It offers exceptional flexibility, high elongation and excellent toughness, along with strong resistance to creep, impact and flex fatigue. The grade maintains flexibility at low temperatures and provides reliable mechanical stability at elevated temperatures. Hytrel TPC-ET 3078 BK176 is a black, light-stabilized grade containing a black pigment concentrate and can be processed using conventional thermoplastic techniques including injection molding and extrusion.

Key Features:

• Very low modulus with high flexibility
• High elongation and excellent toughness
• Outstanding resistance to creep, impact and flex fatigue
• Good resistance to oils, fuels and industrial chemicals
• Black, light-stabilized grade
• Plasticizer-free with long-term property retention

Processing Form:

• Injection Molding
• Film Extrusion
• Extrusion
• Sheet Extrusion
• Other Extrusion
• Coating
• Calendering
• Casting
• Thermoforming

Processing Notes:
Drying is recommended at 80°C for 2–3 hours to reach a processing moisture content ≤0.08%. Hytrel TPC-ET 3078 BK176 has an optimal melt temperature of 205°C (range 190–210°C) and a mold temperature of 30–40°C. For extrusion, drying at 70–90°C for 2–3 hours with moisture ≤0.06% is recommended, with an optimal melt temperature of 200°C. Hytrel is incompatible with acetal and PVC. Please refer to the molding and extrusion guidelines for further details.