Hapco DI-PAK™ R-4528/7 Potting and Encapsulating Compound

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Hapco DI-PAK™ R-4528/7 Potting and Encapsulating Compound
Categories:	Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced
Material Notes:	A black, flame retardant, thermally conductive, high performance series that can be used in all types of electrical components. Combined with its ability to dissipate heat, DI-PAK™ R-4528 also provides low linear thermal expansion, low shrinkage, and low exothermic heat while curing. Meets UL requirements. Information provided by Hapco, Inc.
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Metric	English	Comments

Specific Gravity	1.69 g/cc	1.69 g/cc	ASTM D-4669
Viscosity	24000 cP	24000 cP	ASTM D-4878
Linear Mold Shrinkage	0.00050 - 0.0010 cm/cm	0.00050 - 0.0010 in/in	ASTM D-2566

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	95	95	ASTM D-2240
Tensile Strength	48.3 MPa	7000 psi	ASTM D-638
Elongation at Break	0.60 %	0.60 %	ASTM D-638
Modulus of Elasticity	2.41 GPa	350 ksi	ASTM D-638
Flexural Strength	53.8 MPa	7800 psi	ASTM D-790
Flexural Modulus	2.66 GPa	386 ksi	ASTM D-790
Izod Impact, Notched	0.219 J/cm	0.410 ft-lb/in	ASTM D-256
Izod Impact, Unnotched	0.331 J/cm	0.620 ft-lb/in	ASTM D-256

Electrical Properties	Metric	English	Comments
Volume Resistivity	7.50e+13 ohm-cm	7.50e+13 ohm-cm	ASTM D-270
Dielectric Constant	4.4 @Frequency 100000 Hz	4.4 @Frequency 100000 Hz	ASTM D-150
	4.6 @Frequency 1000 Hz	4.6 @Frequency 1000 Hz	ASTM D-150
Dielectric Strength	16.6 kV/mm	421 kV/in	ASTM D-149
Dissipation Factor	0.0090 @Frequency 100000 Hz	0.0090 @Frequency 100000 Hz	ASTM D-150

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.418 W/m-K	2.90 BTU-in/hr-ft²-°F
Maximum Service Temperature, Inert	163 °C	325 °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	100:10		Volume
	100:6		Weight

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.

PHAPCO037 / 317096

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message