Nomex Kapton NKN

NK and NKN laminates are duplex and triplex laminates constructed of calendered Dupont NOMEX paper bonded to Kapton polyimide film with high temperature adhesive system.The polyimide film in these 2 and 3-ply laminates contributes high dielectric strength, as well as good initial tear strength and tensile properties. The calendered NOMEX paper provides long term thermal stability, as well as improved propagation tear strengths. Highly performing solution for the insulation of electric motors and more generally rotating machines with working tem­peratures up to 200°C. Such as slot liners, wedges and phase insulation in motors and generators which have thermal requirements above Class H applications.

CGS can also slit,sheet and die cut Nomex Kapton laminates to your specification, saving your time and materials. Contact us for more details.

Request Quote


  • Good dielectric properties
  • High heat resistance
  • Thermal endurance and Class H categorization
  • Availability in narrow widths


  • Slot Liner
  • Phase, turn-to-turn Insulating
  • Transformer and inductor windings
  • Motor and other electrical applications



Product Number CGSTAPE-7958UnitBacking
Nominal Thickness6789101416
Product Yieldlb/Syd0.280.350.370.430.510.670.81
Tensile Strength (min)         MDlb/inch100120118148170250300
Elongation (min)          Unfold%10101010101010

Breakdown Voltage (min)   Unfold



Bond Strength At Room Temp.No Delamination
Bond Strength At 200±2C,10min.No Delamination, No Blister, No Adhesive Flow



NK and NKN are duplex and triplex insulation laminate materials made of calendered Nomex bonded to polyimide film with a proprietary high temperature adhesive. The materials are designed not to delaminate or blister at high temperatures.


Nomex usually whitish, Kapton usually brownish


• Nomex Kapton Nomex (NKN) is manufactured in thicknesses range of 0.006″ – 0.016″.
• Standard size is 36″ x 50 Yds, can be slit to required width.
• Can be punched or cut to desired form or shape.