Lubrizol Pearlbond™ 305 Thermoplastic Polyurethane

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Lubrizol Pearlbond™ 305 Thermoplastic Polyurethane
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	PEARLBONDTM 305 is a high performance aromatic polyester-based thermoplastic polyurethane (TPU) for use in hot melt adhesives applications (including film & sheet). This is a very soft plasticizer-free TPU with excellent low temperature flexibility. PEARLBONDTM 305 is available in colourless translucent granules. Information provided by The 159 Corporation
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Physical Properties	Metric	English	Comments

Specific Gravity	1.00 - 1.10 g/cc	1.00 - 1.10 g/cc	ISO 2781

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	61 - 67	61 - 67	ISO 868
Tensile Strength	4.70 MPa	682 psi	ISO 527
Elongation at Break	400 - 500 %	400 - 500 %	ISO 527
100% Modulus	2.20 - 2.60 MPa @Strain 100 %	319 - 377 psi @Strain 100 %	ISO 527
300% Modulus	3.80 - 4.20 MPa @Strain 300 %	551 - 609 psi @Strain 300 %	ISO 527

Thermal Properties	Metric	English	Comments
Melting Point	180 - 190 °C	356 - 374 °F	MQSA 70A
Softening Point	155 - 165 °C	311 - 329 °F	MQSA 70A

Processing Properties	Metric	English	Comments
Zone 1	190 - 200 °C	374 - 392 °F
Zone 2	200 - 210 °C	392 - 410 °F
Zone 3	210 - 220 °C	410 - 428 °F
Zone 4	200 - 210 °C	392 - 410 °F
Die Temperature	190 - 200 °C	374 - 392 °F
Drying Temperature	90.0 - 100 °C @Time 7200 - 10800 sec	194 - 212 °F @Time 2.00 - 3.00 hour
Screw Speed	20 rpm	20 rpm

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PLUBR5039 / 238909

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