3M Scotch-Weld™ 2290 Epoxy Adhesive/Coating

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3M Scotch-Weld™ 2290 Epoxy Adhesive/Coating
Categories:	Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive
Material Notes:	3M™ Scotch-Weld™ Epoxy Adhesive/Coating 2290 is an amber tinted thermo-setting adhesive/coating for metal to metal bonding and coating. It can be used to assemble laminated steel cores for electrical motor stator and rotors, to adhere copper foil to B-staged epoxy in the manufacture of printed circuits, and to coat, protect, and utilize coils and electronic subassemblies. Information provided by 3M
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Physical Properties	Metric	English	Comments

Solids Content	19.5 - 23 %	19.5 - 23 %
Viscosity	40 - 80 cP	40 - 80 cP

Mechanical Properties	Metric	English	Comments
Shear Strength	34.5 MPa	5000 psi	Overlap, Tap Water 30 days @ RT; ASTM D1002-72
	34.5 MPa	5000 psi	Overlap, 20% Salt Spray 30 days @ 35°C; ASTM D1002-72
	34.5 MPa	5000 psi	Overlap, 7 days at RT; ASTM D1002-72
	34.5 MPa	5000 psi	Overlap, Aromatic Fuels 7 days @ RT; ASTM D1002-72
	2.07 MPa @Temperature 150 °C	300 psi @Temperature 302 °F	Overlap; ASTM D1002
	8.27 MPa @Temperature 120 °C	1200 psi @Temperature 248 °F	Overlap; ASTM D1002
	24.1 MPa @Temperature 82.0 °C	3500 psi @Temperature 180 °F	Overlap; ASTM D1002
	34.5 MPa @Temperature -55.0 °C	5000 psi @Temperature -67.0 °F	Overlap; ASTM D1002
	34.5 MPa @Temperature 24.0 °C	5000 psi @Temperature 75.2 °F	Overlap; ASTM D1002
Peel Strength	1.75 kN/m	10.0 pli	T-Peel; ASTM D1876

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.20e+15 ohm-cm	1.20e+15 ohm-cm
Dielectric Constant	5.2 @Frequency 1000 Hz	5.2 @Frequency 1000 Hz
Dielectric Strength	94.5 kV/mm	2400 kV/in
Dissipation Factor	0.011 @Frequency 1000 Hz	0.011 @Frequency 1000 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	262 µm/m-°C @Temperature -20.0 - 70.0 °C	146 µin/in-°F @Temperature -4.00 - 158 °F
	543 µm/m-°C @Temperature 100 - 120 °C	302 µin/in-°F @Temperature 212 - 248 °F
Glass Transition Temp, Tg	95.0 °C	203 °F
Flash Point	-14.0 °C	6.80 °F

Descriptive Properties
Appearance	Light Amber

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.

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PMM34638 / 169385

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