Celanese Hytrel® HTR8745 BK320 TPC-ET

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Celanese Hytrel® HTR8745 BK320 TPC-ET
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyester TPE
Material Notes:	45 Shore D, Heat Stabilized, Black, High Performance High Flow Polyester Elastomer with Excellent Fatigue Resistance Developed for Blow Molding Former DuPont product acquired by Celanese in 2022.
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Physical Properties	Metric	English	Comments

Density	1.14 g/cc	0.0412 lb/in³	ISO 1183
Linear Mold Shrinkage, Transverse	0.018 cm/cm	0.018 in/in	ISO 294-4, 2577
Melt Flow	6.5 g/10 min @Load 10.0 kg, Temperature 230 °C	6.5 g/10 min @Load 22.0 lb, Temperature 446 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	40	40	15s; ISO 48-4
	<= 45	<= 45	ISO 48-4
Tensile Stress at Strain	4.00 MPa @Strain 5.0 %	580 psi @Strain 5.0 %	1BA specimen at 50mm/min; ISO 527-1/-2
	6.80 MPa @Strain 10 %	986 psi @Strain 10 %	ISO 527-1/-2
	13.0 MPa @Strain 50 %	1890 psi @Strain 50 %	ISO 527-1/-2
	18.0 MPa @Strain 100 %	2610 psi @Strain 100 %	ISO 527-1/-2
Tear Strength	120 kN/m	685 pli	normal; ISO 34-1
	120 kN/m	685 pli	parallel; ISO 34-1

Thermal Properties	Metric	English	Comments
Melting Point	203 °C	397 °F	10°C/min; ISO 11357-1/-3
Glass Transition Temp, Tg	-45.0 °C	-49.0 °F	10°C/min; ISO 11357-1/-2
Flame Spread	<= 80.0 mm/min @Thickness 1.00 mm	<= 3.15 in/min @Thickness 0.0394 in	ISO 3795 (FMVSS 302)

Processing Properties	Metric	English	Comments
Melt Temperature	240 °C	464 °F	Optimum, Injection
	240 °C	464 °F	Optimum, Extrusion
	230 - 250 °C	446 - 482 °F	Range, Injection
Mold Temperature	45.0 °C	113 °F	Optimum, Injection
	45.0 - 55.0 °C	113 - 131 °F	Injection
Drying Temperature	110 °C	230 °F	Injection
Dry Time	2.00 - 4.00 hour	2.00 - 4.00 hour	Injection, Dehumidified Dryer
Moisture Content	<= 0.060 %	<= 0.060 %	Extrusion
	<= 0.080 %	<= 0.080 %	Injection

Descriptive Properties
Drying Recommended	yes		Injection
FMVSS Class	B		ISO 3795 (FMVSS 302)
Part Marking Code	>TPC-ET<		ISO 11469
Polymer	TPC
Resin Identification	TPC-ET		ISO 1043

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PDSX5218m / 249174

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