Wire enamels are applied on round and flat wires made of copper and aluminum. Wire enamels are cured onto these wires with the help of heat. They act as primary electric insulation. Wires coated with wire enamels are called magnet wires or enameled wires. These wires are widely used in transformers, generators, motors, and electric measuring instruments. Wire enamels reduce the chances of short circuit, which helps in extending the life of wires. Wires can be coated with up to 30 layers of enamel. Wire enamels offer thermal and chemical resistance along with improved mechanical stability. Materials such as polyurethane, polyesterimide, and polyester are used to insulate copper and aluminum wires.
Rise in the demand for wire enamels for use in electronic applications and increase in the usage of these enamels in power generation applications are expected to drive the wire enamels market in the next few years. This is prompting companies to increase the production of wire enamel. Additionally, easy availability of raw materials required to manufacture wire enamels is anticipated to boost the market during the forecast period.
Based on type, the wire enamels market can be divided into polyurethane, polyesterimide, polyester, polyamide-imide, and others. Polyurethane wire enamels are employed in timers, relays, small transformers, small motors, and fly-back transformers due to their excellent solder-ability and good crazing and pin-hole resistance. Polyesterimide wire enamels possess outstanding thermal properties, which makes them a favorable electric insulation material for high-end applications. Polyesterimide enameled wires are extensively used for ballasts, explosion-proof motors, compressors, dry transformers, washing machine motors, and electric tools. The polyesterimide segment dominates the wire enamels market, due to extensive usage of polyesterimide enameled wires in industries such as power generation and electronics across the globe.
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