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.
Offers Exceptionally High Shear and Peel Strength
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.
Recommended Applications
Understanding Epoxy Adhesives
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.
Epoxy adhesive (often referred to as epoxy glue) is widely used in building and home construction; aircraft and automobile manufacturing; bicycle, boat, golf clubs, ski and snowboard assembly as well as a host of home use and other applications. It is used virtually anywhere high-strength bonds are needed along with resistance to environmental conditions. These adhesives are popular for their ease of use, mechanical strength and chemical resistance. Formulations can be created to make epoxy for plastic flexible or epoxy for metal rigid, epoxy resin transparent or opaque, quick setting or slow setting. The versatility with which these adhesives can be formulated helps meet almost any requirement for bonding wood, metal, glass, stone and various plastics.
Bringing Better Ideas to the Surface through Science and Innovation
In our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.
Click here for more information on 3M Structural Adhesives. (PDF, 15.87 Mb)
| Adhesive Type | Epoxy |
| Brands | Scotch-Weld™ |
| Container Size (Imperial) | 1 Gallon, 5 Gallon, 55 Gallon |
| Container Size (Metric) | 3.8 Liter, 18.93 Liter, 208.2 Liter |
| Flame Retardant | UL94 HB |
| Full Cure Time | 30 - 60 min @ 350 °F (177 °C) @ 75 psi |
| Indoor/Outdoor | Both |
| Industries | Military & Government, Transportation, Construction, Consumer Goods, General Industrial, Electronics, Specialty Vehicle |
| Physical Form | Liquid |
| Product Color | Amber |
| Product Form | Gallon |
| Product Type | Epoxy Adhesive |
| Shear Strength | 5000 psi |
| Solids Weight Percent (Approximate) | 19.5 % - 23 % |
| Specific Gravity | 1.2 in dried state |
| Storage Temperature (Celsius) | 22.0 °C |
| Storage Temperature (Fahrenheit) | 72.0 °F |
| Units per Case | 1.0, 4.0 |
| Viscosity | Self-leveling |
| Viscosity Range (cps) at Room Temperature | 40-80 |
| Volume (Imperial) | 1 gal, 5 gal, 55 gal |
| Volume (Metric) | 19 L, 250.03 L |
Safety Data Sheets
Document Number: MSDS_1096718_US_EN
(PDF)
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3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
