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 adhesive 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.