Magnet wire, also known as winding wire, is a specific type of coated wire that is used in electric motors and other electrical equipment. The history of magnet wire dates back to the early 19th century, when aluminum and copper wires were first developed for use in electric motors. These wires had a thin insulation layer that allowed for the transfer of electrical energy without interference. As electric motors grew in popularity, so too did the need for a wire that could carry magnetic coils and transfer electrical energy efficiently. This led to the invention of bondable wire, which is an insulated conductor coated with a bond coat that provides extra protection against corrosion. Modern magnet wires have undergone various improvements over time and include various different types depending on the application they are being used for. The choice of insulation material, thickness and type of wire depends on the application, temperature range, and other factors.