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Isonom NKN 2039

Isonom NKN 2039

A flexible composite electrical insulation material consisting of Kapton polyimide film coated on both sides with uncalandered Nomex 411.

Rated to 180ºC, its commonly used as slot liner, slot closure and phase insulation in high thermally-stressed electric motors.

Isonom NKN 2039 is a flexible, composite electrical insulation that displays high tensile strength and high tear resistance whilst also maintaining high electrical strength. Manufactured by Isovolta, this high quality material consists of a layer of Kapton™ Polyimide film which is coated on both sides with a layer of uncalendered Nomex™.

The use of uncalendered Nomex 411 in the construction of Isonom NKN 2039 makes this particular grade highly flexible and highly absorbent in comparison to other grades. This has seen it used extensively as slot liner, slot closure and phase insulation in thermal high stressed electric motors up to 180ºC (class H). It has also been used as interlayer insulation in transformers and other electrical machines and appliances.

Available Sizes

Isonom NKN 2039 is available from AG in 0.25mm thick. The material is stocked in roll form measuring 965mm wide x 50mtrs long but is usually supplied either by the metre, converted to slit tapes, or in custom component form.

AG’s extensive fabrication facilities can accurately cut this material with little set up time and no minimum order quantity. This offers the benefits of reduced material wastage on your end and a significant labour saving during installation.

For more information, or to discuss the suitability of this high quality insulation for your particular application, don’t hesitate to contact your local AG branch or sales representative.

Additional Information and Resources

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Isonom NKN 2039 TDS

Max. Continuous Temp.

Breakdown Voltage

Tensile Strength


Any Approvals for Water / Food

Dangerous Goods for Transport