3M™ Scotch-Weld™ Epoxy Adhesive 2290
- | Select product options for IDs.
Details
Highlights
- Offers exceptionally high shear and peel strength
- Dries to a tack-free film which allows bonds to be made up to 3 months later for B-staging and multi-stage processes
- Excellent wetting during cure requires only coating a single surface
- Heat press during cure recommended for lamination use
3M™ Scotch-Weld™ Epoxy Adhesive 2290 is a solvent-based, low viscosity, amber-tinted, thermosetting epoxy adhesive requiring heat cure. It is designed for metal to metal coating and subsequent bonding: for example, in motor lamination and wire winding.
3M™ Scotch-Weld™ Epoxy Adhesive 2290 is designed to coat and bond metal substrates, including steel and aluminum. This epoxy is a low (21% solids) formulation with very low viscosity. 3M™ Scotch-Weld™ Epoxy Adhesive 2290 can be applied in a variety of methods including: brushing, flow coating, dip coating, roll coating, knife coating, and spraying. It is ideal for assembling metal laminations and various applications on metal cores, rotors and motors, and wire windings. B-staging coated and dried parts are optional; allowing final cure up to 3 months later. Epoxy adhesives are part of the class of adhesives called "structural adhesives," which include polyurethane, acrylic, cyanoacrylate, and others. One-part heat cured epoxies are rigid adhesives that have outstanding strength when measured at elevated temperatures. These adhesives require a thermal cure, typically around 250°-350°F (120°-180°C) for 40-60 minutes, to achieve full strength. They provide high shear and peel strengths, depending on the formula, and better heat and chemical resistance than other common adhesives.
Suggested applications
- Assemble laminated steel cores for electrical motor stators and rotors
- Adhere copper foil to B-staged epoxy in the manufacture of printed circuits
- Coat, protect and utilize coils and electronic subassemblies
- Thin metal stack laminations such as those used in magnetic tape heads
Typical Properties
| Adhesive Type | Epoxy |
| Applications | Laminated Steel Cores Assembly, Copper Foil to B-staged Epoxy Adherence, Coils and Electronic Subassemblies Coating, Thin Metal Stack Laminations |
| Bond Flexibility | Rigid |
| Brands | Scotch-Weld™ |
| Container Size (Imperial) | 5 Gallon, 55 Gallon |
| Container Size (Metric) | 18.93 L, 208.2 L |
| Flame Retardant | UL94 HB |
| Full Cure Time | 30 - 60 min @ 350 °F (177 °C) @ 75 psi |
| Indoor/Outdoor | Both |
| Industries | Consumer Goods, General Industrial, Specialty Vehicle, Construction, Electronics, Transportation, Military and Government |
| Physical Form | Liquid |
| Product Form | Gallon |
| Product Type | Epoxy Adhesive |
| Shear Strength | 5000 psi |
| Solids Weight Percent (Approximate) | 19.5 % - 23 % |
| Storage Temperature (Celsius) | 22.0 °C |
| Storage Temperature (Fahrenheit) | 72.0 |
| Units per Case | 1.0 |
| Viscosity | Self-leveling |
| Volume (Imperial) | 5 gal, 55 gal |
| Volume (metric) | 19 L, 250.03 L |
Resources
Safety Data Sheets
Document Number: MSDS_1096718_CA_EN
(PDF)
