Hapco DI-PAK™ R-4525/7 Potting and Encapsulating Compound

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Hapco DI-PAK™ R-4525/7 Potting and Encapsulating Compound
Categories:	Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced
Material Notes:	A general purpose series of low viscosity, strong, potting and encapsulating compounds. DI-PAK™ R-4525 has excellent electrical insulating properties and bonds well to many substrates. By varying the curing agents, the desired cure and working life can be obtained. Information provided by Hapco, Inc.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.51 g/cc	1.51 g/cc	ASTM D-4669
Viscosity	12500 cP	12500 cP	ASTM D-4878
Linear Mold Shrinkage	0.00050 - 0.0020 cm/cm	0.00050 - 0.0020 in/in	ASTM D-2566

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	95	95	ASTM D-2240
Tensile Strength	62.4 MPa	9050 psi	ASTM D-638
Elongation at Break	1.1 %	1.1 %	ASTM D-638
Modulus of Elasticity	2.74 GPa	397 ksi	ASTM D-638
Flexural Strength	69.6 MPa	10100 psi	ASTM D-790
Flexural Modulus	2.77 GPa	402 ksi	ASTM D-790
Izod Impact, Notched	0.240 J/cm	0.450 ft-lb/in	ASTM D-256
Izod Impact, Unnotched	0.347 J/cm	0.650 ft-lb/in	ASTM D-256

Electrical Properties	Metric	English	Comments
Volume Resistivity	2.60e+13 ohm-cm	2.60e+13 ohm-cm	ASTM D-270
Dielectric Constant	4.2 @Frequency 100000 Hz	4.2 @Frequency 100000 Hz	ASTM D-150
	4.3 @Frequency 1000 Hz	4.3 @Frequency 1000 Hz	ASTM D-150
Dielectric Strength	26.2 kV/mm	666 kV/in	ASTM D-149
Dissipation Factor	0.0070 @Frequency 100000 Hz	0.0070 @Frequency 100000 Hz	ASTM D-150

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.432 W/m-K	3.00 BTU-in/hr-ft²-°F
Maximum Service Temperature, Inert	155 °C	311 °F

Processing Properties	Metric	English	Comments
Cure Time	960 - 1440 min @Thickness 3.17 mm	16.0 - 24.0 hour @Thickness 0.125 in	Demold
	120 - 240 min @Thickness 3.17 mm, Temperature 65.6 °C	2.00 - 4.00 hour @Thickness 0.125 in, Temperature 150 °F	Demold
Gel Time	50.0 min @Load 0.100 kg	50.0 min @Load 0.221 lb	ASTM D-2971

Descriptive Properties
Color (cured)	Black
Mix Ratio	100:12.5		Weight
	100:20		Volume

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PHAPCO033 / 317092

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