The insulation is made from modified Polyurethane with a polymide overcoat, and protects the coiled wire from short-circuiting.
Magnet wire is copper wire with a thin layer of insulation, and is used in a variety of applications including transformers, wound coils, motors, solenoids, and instruments.Magnet Wire, Heavy Build Enameled Copper Wire, 14 AWG, 10..0 Lbs, 790' Length, 0.