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3M™ Scotch-Weld™ Epoxy Adhesive 2290

3M Product Number  2290     
3M™ Scotch-Weld™ Epoxy Adhesive 2290 is a twenty-one percent solids liquid, one-part epoxy adhesive.
  • Very low viscosity
  • Liquid coating for metal laminations
  • B-stage. Bonds can be made up to 3 months later.
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3M™ Scotch-Weld™ Epoxy Adhesive 2290 is B-stageable. Thermosetting for metal to metal bonding and coating. Can be used in laminating steel cores for motors, starters and rotors. Good for many thin metal stack laminations such as those used in magnetic tape heads, to adhere copper foil on printed circuits, and to coat, protect and unitize coils and electronic sub-assemblies.


Adhesive TypeEpoxy
Consumer LabelNo
Container Volume5 Gallon, 55 Gallon, 1 Gallon
Full Cure30-60 Minutes @ 350 F (177 C) @ 75 psi
IndustriesTransportation, Specialty Vehicle, Construction, Military & Government, General Industrial, Electronics, Consumer Goods
Peel Strength at 72 Degrees F (22 Degrees C)10 lb/in
Physical FormLiquid
Product FormGallon
Shear Strength at 72 Degrees F (22 Degrees C)5000 Pound-Force Per Square Inch
Shelf Life in Months (from date of manufacture)15
Solids Weight Percent (Approximate)19.5 to 23 Percent
Specific Gravity1.2 in dried state
Storage Temperature72 Degree Fahrenheit
Time to Handling Strength45 Minute
TypeEpoxy Adhesive
Viscosity Range (cps) at Room Temperature1-100