Celanese Hytrel® HTR4275 BK316 TPC-ET

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Celanese Hytrel® HTR4275 BK316 TPC-ET
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyester TPE
Material Notes:	55 Shore D High Viscosity Polyester Elastomer with Good Heat Ageing Protection Developed for Blow Molding Former DuPont product acquired by Celanese in 2022.
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Physical Properties	Original Value	Comments

Density	1.17 g/cc	ISO 1183
Melt Density	1.00 g/cc @Temperature 240 °C
Water Absorption	0.50 % @Time 86400 sec	Immersion; Sim. to ISO 62
	0.50 % @Thickness 2.00 mm	Sim. to ISO 62
Moisture Absorption	0.200 % @Thickness 2.00 mm	Sim. to ISO 62
Linear Mold Shrinkage, Flow	0.017 cm/cm	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.019 cm/cm	ISO 294-4, 2577
Melt Flow	6.0 g/10 min @Load 10.0 kg, Temperature 230 °C	ISO 1133
	6.0 g/10 min @Load 10.0 kg, Temperature 230 °C	cm³/10min Volumetric; ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Shore D	52	15s; ISO 48-4
	<= 55	ISO 48-4
Tensile Stress at Strain	6.70 MPa @Strain 5.0 %	1BA specimen at 50mm/min; ISO 527-1/-2
	10.4 MPa @Strain 10 %	ISO 527-1/-2
	17.0 MPa @Strain 50 %	ISO 527-1/-2
	21.0 MPa @Strain 100 %	ISO 527-1/-2
Tensile Modulus	160 MPa	ISO 527-1/-2
Flexural Modulus	160 MPa	ISO 178
Poissons Ratio	0.49
Charpy Impact Unnotched	NB @Temperature 23.0 °C	ISO 179/1eU
Charpy Impact, Notched	30.0 kJ/m² @Temperature -40.0 °C	ISO 179/1eA
	160 kJ/m² @Temperature -30.0 °C	Partial Break; ISO 179/1eA
	NB @Temperature 23.0 °C	ISO 179/1eA
Tensile Impact Strength	410 kJ/m² @Temperature 23.0 °C	Notched; ISO 8256/1
Tensile Creep Modulus, 1 hour	140 MPa	1h; ISO 899-1
Tensile Creep Modulus, 1000 hours	90.0 MPa	1000h; ISO 899-1
Tear Strength	127 kN/m	normal; ISO 34-1
	140 kN/m	parallel; ISO 34-1

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	181 µm/m-°C	ISO 11359-1/-2
CTE, linear, Transverse to Flow	185 µm/m-°C	ISO 11359-1/-2
Specific Heat Capacity	2.10 J/g-°C @Temperature 240 °C	Melt
Thermal Conductivity	0.150 W/m-K @Temperature 240 °C	Melt
Melting Point	192 °C	10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	57.0 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	41.0 °C	ISO 75-1/-2
Brittleness Temperature	-100 °C	ISO 974
Glass Transition Temp, Tg	-30.0 °C	10°C/min; ISO 11357-1/-2
Flammability, UL94	HB @Thickness 1.50 mm	IEC 60695-11-10
Flame Spread	38.0 mm/min @Thickness 1.00 mm	ISO 3795 (FMVSS 302)

Processing Properties	Original Value	Comments
Melt Temperature	205 - 220 °C	Range, Extrusion
	220 - 240 °C	Range, Blow Molding
	230 °C	Optimum, Blow Molding
	240 °C	Optimum, Injection
	230 - 250 °C	Range, Injection
Mold Temperature	45.0 °C	Optimum, Injection
	40.0 - 50.0 °C	Injection
	40.0 - 90.0 °C	Range, Blow Molding
	80.0 °C	Optimum, Blow Molding
Drying Temperature	100 °C	Extrusion
	100 °C	Injection
	100 - 110 °C	Blow Molding
Dry Time	2.00 - 3.00 hour	Extrusion, Dehumidified Dryer
	2.00 - 4.00 hour	Injection, Dehumidified Dryer
	4.00 - 6.00 hour	Blow Molding, Dehumidified Dryer
Moisture Content	<= 0.030 %	Blow Molding
	<= 0.060 %	Extrusion
	<= 0.080 %	Injection

Descriptive Properties
Drying Recommended	yes	Blow Molding
	yes	Injection
Eff. thermal diffusivity (m²/s)	5.44E-08
FMVSS Class	B	ISO 3795 (FMVSS 302)
Odor Class	3.5	VDA 270
Part Marking Code	>TPC-ET<	ISO 11469
Polymer	TPC
Resin Identification	TPC-ET	ISO 1043

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PDSX5203 / 197843

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