North America Product Offering  

Product Brand Name Formvar Soderbond® N/155 Soderex®/155 Soderon®/155 Soderex®/180 Soderon®/180 Solidex® Solidon® Polybondex® Thermalex 200® GP/MR-200® AI Allex®
Thermal Class 105°C 155°C 155°C 155°C 180°C 180°C 180°C 180°C 180°C 200°C 200°C 220°C 240°C
NEMA Designation


MW 15-C/A

 MW 136 MW 79 MW 80 MW 82 MW 83 MW 77 MW 78 Reference NEMA MW 1000 for dimensional data only MW 74 MW 35
MW 73		 MW 81
MW 16
IEC Designation 60317-1 - 60317-20 60317-21 60317-51 60317-55 60317-23 - - 60317-42 60317-13 60317-26 60317-46
Insulation Polyvinyl Acetal Polyurethane / Nylon / Butvar Polyurethane Polyurethane / Polyamide Polyurethane Polyurethane / Polyamide Soderable Polyester(imide) Soderable Polyester(imide) / Polyamide Modified Polyester / (with or without Polyamideimide)  /Bondcoat Modified Polyester
(THEIC-modified)		 Polyester / Polyamideimide Polyamideimide Polyimide
Characteristics Excellent flexibility, adhesion, and abrasion scrape resistance. Good thermal shock resistance. Excellent bond strength at room temperature. Polyurethane insulation allows soldering without prior removal of the film from the wire. Excellent resistance to moisture and most common solvents. Excellent solderability and elevated thermal properties. Same characteristics as Soderex with the advantages of a nylon topcoat. The nylon topcoat helps provide improvement in the windability and tolerates more severe winding operations. Designed for applications requiring both high thermal resistance and low soldering temperatures. Designed for applications requiring both high thermal resistance and low soldering temperatures. The nylon topcoat helps provide improvement in the windability and tolerates more severe winding operations.  Soderability is coupled with a need for high thermal resistance. Good solderability at high temperatures. Enhanced by addition of a polyamide overcoat. Excellent resistance to thermal stress. Different constructions of bondable wire having a GP/MR-200® or Thermalex 200® base insulation with a thermoplastic bondcoat. Bondcoat allows the use of resistance, induction, or radiant heating to flow the bond. Thermally stable, modified polyester film and has excellent physical, chemical and electrical properties for small coils operating at high temperatures. Standard of excellence for motor repair with high moisture resistance and ease of insertion. Film insulation has physical toughness, excellent dielectric properties, and superior chemical resistance to common solvents and refrigerants. Provides unsurpassed scrape and abrasion resistance. The combination of high moisture and chemical resistance makes it suited for the most demanding of applications. Exceptional resistance to chemical solvents and burn-out, will operate at temperatures in excess of 240°C for intermittent duty and outstanding thermoplastic flow and ability to withstand excessive overloads in extreme conditions.
Applications Oil-filled transformers, motors, solenoids Helical and toroidal coils, solenoid coils, voice coils. Appliance motors, relays, timers and clock coils, encapsulated coils, bobbin wound coils, small motors, automotive coils, toroidal coils.  Appliance motors, relays, timers and clock coils, encapsulated coils, bobbin wound coils, small motors, toroidal coils, transformers, components for automotive. Relays, automotive coils, specialty power transformers, appliance controls, automotive controls, solenoids, motors. Bobbin wound and paper section coils, molded and encapsulated coils, small motors, armatures and fields, automotive coils, toroidal coils, linear motors, relays, transformers, watch coils, components for automotive, ignition coils.  Automotive controls, relays, ABS coils, ignition coils, solenoids, appliance controls, coils, small motors, small transformers. Applications submitted to high thermal stresses: automotive components, ignition coils, small motors, solenoids, appliance controls, small transformers.  Armatures, bobbinless coils, brake, clutch, and ignition coils, motors, relays, sensors, solenoids, stators, transformers Small appliance and power tool motors, continuous operation coils, encapsulated coils, sub-fractional instrument and servo-motors, DC motors, fractional and integral horsepower motors. Applications submitted to high stresses (thermal, chemical, and/or mechanical). Fractional and integral horsepower motors, hermetic motors, DC motors, automotive alternators and gnerators, power tool motors, dry type transformers (Class 105 through 200). Fractional and integral horsepower motors, high temperature continuous duty coils and relays, hermetic and sealed units, heavy duty hand tool motors, encapsulated coils. Fractional and integral horsepower motors, high temperature continuous duty coils and relays, hermetic and sealed units, heavy duty hand tool motors, encapsulated coils
Note: Special builds, additional sizes and colors available upon request. For additional details, or specific requests, please contact Essex Magnet Wire Marketing at finewire@spsx.com.
Products listed are UL recognized with the exception of Formvar.
*MW 102 for Polybondex Bond E and Bond S products.