Epoxies, Etc 40-3901 Electrically Conductive Epoxy Adhesive

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Epoxies, Etc 40-3901 Electrically Conductive Epoxy Adhesive
Categories:	Polymer; Thermoset; Epoxy; Epoxy Adhesive
Material Notes:	Description: 40-3901 is a two component epoxy adhesive filled with silver. This electrically conductive epoxy resin formulation offers an easy one to one mix ratio that cures at room temperature. 40-3901 is designed for adhesive bonding in microelectronic and optoelectronic applications. Due to its excellent continuity of conductivity, it has also been used extensively in applications such as micro-wave EMI and RFI shielding, in the assembly or repair of printed circuit boards, wave guides, electronic modules, flat cable, high frequency shields, connectors, circuitry, and as a cold solder. 40-3901 is formulated with pure silver (no alloys). Both the resin and hardener have silver particles dispersed. Features: Electrically conductive Thermally conductive Room temperature cure Easy 1:1 mix ratio Good bond strength Information provided by Epoxies, Etc
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Physical Properties	Original Value	Comments

Specific Gravity	1.80 g/cc	Hardener
	3.10 g/cc	Resin

Mechanical Properties	Original Value	Comments
Hardness, Shore D	70
Flexural Strength	10200 psi
Shear Strength	700 psi	Lapshear (Al to Al)

Electrical Properties	Original Value	Comments
Volume Resistivity	0.0060 ohm-cm

Thermal Properties	Original Value	Comments
Thermal Conductivity	7.93 W/m-K
Maximum Service Temperature, Air	135 °C
Minimum Service Temperature, Air	-35.0 °C

Processing Properties	Original Value	Comments
Cure Time	1.00 hour @Temperature 65.0 °C
	15.0 min @Temperature 90.0 °C
	24.0 hour @Temperature 25.0 °C
Shelf Life	12.0 Month @Temperature 25.0 °C

Descriptive Properties
Color	Silver
Mix Ratio	1:1

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PFEPOX093 / 316770

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