Lubrizol Pearlbond™ 920 Thermoplastic Polyurethane

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Lubrizol Pearlbond™ 920 Thermoplastic Polyurethane
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Type: Polycaprolactone copolyester-based Aliphatic Thermoplastic Polyurethane with 82 Shore A Hardness. Features: Translucent resin with excellent color stability upon UV exposure. Uses: Hotmelt adhesives Applications: Pearlbond™ 920 is suitable for use in blown extrusion, slot-die extrusion, roll coating and powder applications where the following features are of high value to the customer: Fast crystallization rate; Low activation temperature; Excellent bonding strength; High resistance to UV Information provided by The 159 Corporation
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Physical Properties	Metric	English	Comments

Specific Gravity	1.11 g/cc	1.11 g/cc	ISO 2781 / ASTM D-792
Melt Flow	15 - 35 g/10 min @Load 2.16 kg, Temperature 190 °C	15 - 35 g/10 min @Load 4.76 lb, Temperature 374 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	82 @Time 3.00 sec	82 @Time 0.000833 hour	ISO 868 / ASTM D-2240
Tensile Strength	38.4 MPa	5570 psi	ISO 527
Tensile Stress at Strain	5.40 MPa @Strain 100 %	783 psi @Strain 100 %	ISO 527
	10.5 MPa @Strain 300 %	1520 psi @Strain 300 %	ISO 527
Elongation, Ultimate	723 %	723 %	ISO 527
Tear Strength	80.0 kN/m	456 pli	ISO 34-1B (ASTM D-624 Die C)ISO 34-1B (ASTM D-624

Thermal Properties	Metric	English	Comments
Melting Point	110 - 135 °C	230 - 275 °F	MQSA 70A
Vicat Softening Point	60.0 °C	140 °F	A50; ISO 306

Processing Properties	Metric	English	Comments
Zone 1	175 - 185 °C	347 - 365 °F
Zone 2	180 - 190 °C	356 - 374 °F
Zone 3	180 - 190 °C	356 - 374 °F
Zone 4	175 - 185 °C	347 - 365 °F
Die Temperature	165 - 175 °C	329 - 347 °F
Dry Time	3.00 hour @Temperature 70.0 °C	3.00 hour @Temperature 158 °F

Descriptive Properties
Activation temperature	110-120°C		LA-17

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PLUBR5043a / 278125

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