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Self Bonding Wire Enamels

Wire enamels based on polyvinylbutyral or polyamide for the production of magnet wire for use in self-supporting wire windings. These types of wire windings are particularly used in selfsupporting coils, sch as magnetic coils, TV-deflection yoke coils, measuring instrument coils and the wire windings in small motors.

Overview about our Self bonding Wire Enamels

 

Voltatex® 8700 (former E 7012)

Voltatex® 8700 represents a class of thermoplastic bonding wire enamel without cresylic acid solvent,

based on polyvinylbutyral resin with different solid contents such as Voltatex® 8710, Voltatex® 8714

and Voltatex® 8718. Wound coils may be bonded by resistance heating, solvents, heating in an oven

or by means of hot air during the winding process.

Voltatex® 8700 bonding wire enamel is preferably used in combination with solderable polyurethane

base coats. Minimum bonding temperature is 100 °C, but optimum bond strength requires about

140 °C.

Voltatex® 8600 (former E 8297)

 

Voltatex® 8600 C represents a class thermoplastic bonding wire enamel based on polyamide resin

with different solid contents such as Voltatex® 8611 C and Voltatex® 8616 C.

Voltatex® 8600 C bonding wire enamel can be applied to polyurethane or polyesterimide base coats.

Voltatex® 7200 is commonly used as a base coat. Wound coils of such magnet wire may be bonded by

resistance heating, solvents, heating in an oven or by hot air during the winding process. Minimum 

temperature for bonding is 140 °C, but optimum bond strength requires a temperature above 170 °C.

Self-bonding magnet wire is required for example in self-supporting coils e.g. TV yoke coils, coils for 

electrical brakes, windings in small motors etc.