Wire Insulations

A polyvinyl formal resin enamel used as general-purpose insulation for many years. Commonly applied in the manufacture of oil-filled transformers and electrical motors. Extremely tough and abrasion resistant, capable of withstanding severe windability and forming requirements. Compatible with most varnishes and encapsulants.

A polyurethane resin-based all-purpose enamel that can be wound easily and rapidly into many types of coils. Its unique property is the ability to be soldered without prior removal of the enamel. Excellent for the manufacture of Litz wire due to ease of soldering, very high moisture resistance, and low dielectric losses at high frequencies.

A nylon enamel film over a polyurethane enamel base coat. The nylon addition improves cut-through temperature, windability, resistance to abrasion, and resistance to chemicals and solvents without significant change in soldering properties. Preferred in wire sizes 30 AWG and larger where a solderable film is required.

A modified polyesterimide base resin with excellent physical and electrical properties. Can be soldered without prior removal of the insulation at temperatures of 850°F and higher. Available with nylon topcoat (MW-78C / JW-1177/40) which enhances windability and increases heat shock capabilities. Also available with various bondable topcoats.

Manufactured from a modified polyester based on terephthalic acid. Can be freely substituted as replacement for lower class insulations with a substantial increase in temperature rating. Solvent resistance is very good, and practically all types of impregnating varnishes may be used with it.

A superior high-temperature enamel prepared from a polyester-polyimide polymer. Can be freely substituted for dual-coated high-temperature polyester type films. Offers improved heat shock, cut-through, thermal flexibility, and Freon resistance at higher temperatures.

A superior high-temperature enamel based on polyester-amide-imide resins. Can be freely substituted for dual-coated Class 200 magnet wire in the finer sizes.

Similar to Polybond but with a layer of polyamide (nylon) superimposed over the underlying polyurethane before the application of the butyral topcoat. This provides higher cut-through values than obtainable with Polybond, upgrading it to Class 130.

Isomid enameled wire with a polyamide-imide topcoat. Offers superior burnout, heat shock, and cut-through resistance with excellent windability properties, permitting its use in practically all applications subjected to continuous high temperatures and sudden overloads.

Polyurethane enamel with an additional overlying film that imparts a high-friction surface to the wire. Used as a substitute for textile-insulated wire in the manufacture of universal wound coils or other self-supporting coil forms. Solderable without stripping. Available in two grades: Gripeze #1 (Heavy Polyurethane dimensions) and Gripeze #2 (Triple Polyurethane dimensions).

The highest temperature properties of all wire enamels developed to date. Burnout, heat shock, and cut-through resistance far exceeds that of all other enamels.

Polyurethane enameled wire with an additional layer of thermoplastic cement. Polybond #1 is Single Polyurethane with sufficient overcoat to increase the diameter to that of Heavy Polyurethane. Polybond #2 is Heavy Polyurethane with a layer of overcoat cement with dimensions of Triple Polyurethane. Application of heat or a suitable solvent cements all turns together, forming a solid-bodied mass. Bondable topcoat is based on polyvinyl butyral resin.