Hytrel® TPC-ET HTR8813 BK320

Hytrel TPC-ET HTR8813 BK320 is a medium-modulus, halogen-free flame-retardant thermoplastic polyester elastomer (TPC-ET) with a nominal hardness of 55D. This black grade provides very strong flammability performance, meeting UL94 V-0 at 1.5 mm and 0.8 mm, and includes anti-drip functionality. The material delivers excellent toughness, resilience and flexibility at low temperatures while maintaining stable mechanical properties at elevated temperatures. Hytrel TPC-ET HTR8813 BK320 demonstrates outstanding resistance to creep, impact and flex fatigue, and offers good chemical resistance to oils, fuels, solvents and many industrial fluids. It is light-stabilized, UV-stabilized and heat-stabilized, and can be processed using conventional thermoplastic techniques including injection molding and extrusion.

Key Features:

• Halogen-free flame-retardant formulation
• UL94 V-0 at 1.5 mm and 0.8 mm
• Medium modulus with strong mechanical stability
• Anti-drip performance
• Excellent toughness and resilience
• Outstanding resistance to creep, impact and flex fatigue
• Good resistance to oils, fuels and industrial chemicals
• Light-, UV- and heat-stabilized grade
• Black, flame-retardant additive package
• Plasticizer-free with long-term property retention

Processing Form:

• Injection Molding
• Film Extrusion
• Extrusion
• Sheet Extrusion
• Other Extrusion

Processing Notes:
Drying is recommended at 100°C for 2–3 hours to achieve a processing moisture content ≤0.08%. Hytrel TPC-ET HTR8813 BK320 has an optimal melt temperature of 230°C (min. 220°C, max. 240°C) and an optimal mold temperature of 45°C (40–50°C range). For extrusion, dry at 100°C for 2–3 hours to achieve ≤0.06% moisture and process at a melt temperature range of 220–235°C. Hytrel is incompatible with acetal and PVC. Please refer to the molding and extrusion guidelines for detailed recommendations.