Hapco DI- PAK™ E-4541 TPU

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Hapco DI- PAK™ E-4541 TPU
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Flexible, 45, 65 and, 95 shore A hardness, potting and encapsulating systems. Accelerated gel times, and black or unpigmented versions are available. The Di-Pak™ Advantage: Flexible or Rigid Low Viscosity Multiple Speeds Mercury Free Improve your process and your product: Eliminate Rejects Fast Cure & Fast Turnover Increase Performance Hand Mix or Dispense Information provided by Hapco, Inc.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.04 g/cc	1.04 g/cc	ASTM D-4669
Viscosity	2600 cP	2600 cP	ASTM D-4878
Linear Mold Shrinkage	0.0020 - 0.0030 cm/cm	0.0020 - 0.0030 in/in	ASTM D-2566

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	45	45	ASTM D-2240
Tensile Strength	4.34 MPa	630 psi	ASTM D-638
Elongation at Break	449 %	449 %	ASTM D-638
Modulus of Elasticity	0.00110 GPa	0.160 ksi	ASTM D-638
Izod Impact, Notched	NB	NB	ASTM D-256
Tear Strength	18.1 kN/m	103 pli	ASTM 624 Die-C

Electrical Properties	Metric	English	Comments
Volume Resistivity	7.10e+15 ohm-cm	7.10e+15 ohm-cm	ASTM D-270
Dielectric Constant	2.7 @Frequency 100000 Hz	2.7 @Frequency 100000 Hz	ASTM D-150
	2.8 @Frequency 1000 Hz	2.8 @Frequency 1000 Hz	ASTM D-150
Dielectric Strength	14.6 kV/mm	370 kV/in	ASTM D-149
Dissipation Factor	0.22 @Frequency 100000 Hz	0.22 @Frequency 100000 Hz	ASTM D-150

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.202 W/m-K	1.40 BTU-in/hr-ft²-°F
Maximum Service Temperature, Inert	60.0 °C	140 °F

Processing Properties	Metric	English	Comments
Cure Time	1080 - 1440 min @Thickness 3.17 mm	18.0 - 24.0 hour @Thickness 0.125 in	Demold
Gel Time	20.0 min	20.0 min	ASTM D-2971
	3.00 min @Load 0.100 kg	3.00 min @Load 0.221 lb	ASTM D-2971

Descriptive Properties
Color (cured)	Clear Amber
Mix Ratio	100:50		Volume
	100:50		Weight

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PHAPCO002 / 317061

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