Lubrizol ESTANE® GP85AB Ester Based Thermoplastic Polyurethane

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Lubrizol ESTANE® GP85AB Ester Based Thermoplastic Polyurethane
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane, TP; Thermoplastic Polyurethane, Elastomer, Polyester Grade
Material Notes:	Type: Estane® GP 85AB is an aromatic polyester-based thermoplastic polyurethane (TPU). Appearance: Translucent spherical pellets Uses: Injection molding parts Information provided by Lubrizol.
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Physical Properties	Original Value	Comments

Specific Gravity	1.20 g/cc	ISO 2781
Maximum Moisture Content	0.050
Melt Flow	20 - 40 g/10 min @Load 21.6 kg, Temperature 190 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	85	ISO 868
Hardness, Shore D	37	ISO 868
Tensile Strength, Ultimate	35.0 MPa	ISO 37
Elongation at Break	550 %	ISO 37
Tensile Modulus	0.0170 GPa	ISO 527
50% Modulus	0.00500 GPa @Strain 50 %	ISO 37
100% Modulus	0.00600 GPa @Strain 100 %	ISO 37
300% Modulus	0.0140 GPa @Strain 300 %	ISO 37
Rebound	40 %	ISO 4662
Tear Strength	75.0 kN/m	with incision; ISO 34B
	112 kN/m	without incision; ISO 34B
Abrasion	30	mm³; ISO 4649
Compression Set	12 % @Temperature 22.0 °C, Time 252000 sec	ISO 815
	28 % @Temperature 70.0 °C, Time 86400 sec	ISO 815

Thermal Properties	Original Value	Comments
Vicat Softening Point	111 °C	A50; ISO 306

Processing Properties	Original Value	Comments
Feed Temperature	40.0 °C	Injection
Nozzle Temperature	190 - 200 °C	Injection
Zone 1	185 - 195 °C	Injection
Zone 2	190 - 200 °C	Injection
Zone 3	195 - 205 °C	Injection
Zone 4	195 - 205 °C	Injection
Drying Temperature	90.0 °C
Dry Time	2.00 - 3.00 hour
Dew Point	-30.0 °C

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