Essex Solutions Soderon® FS-155 copper magnet wire features a heavy build polyurethane/nylon insulation rated for 155°C. Designed for automatic winding in small motors, coils, and automotive applications, it offers excellent flexibility, adhesion, and solvent resistance. Its tough nylon topcoat surpasses Class 130 and 155 standards, with a thermoplastic flow temperature around 237°C, ensuring durability in molded coil and impregnation processes. UL listed and RoHS compliant, this red, round wire meets ASTM and IEC standards, making it ideal for bobbin wound, toroidal, and encapsulated coils requiring high thermal and mechanical performance. Available in 20 AWG and other sizes.