3M™ Scotch-Weld™ Epoxy Adhesive, 2290, amber, 55 gal. (250.03 l)

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 250-350F (120-180C) 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.