Nomex Kapton NKN

Nomex Kapton NKN 1

Nomex Kapton (NK and NKN) laminates are duplex and triplex laminates constructed of Dupont NOMEX paper bonded to kapton polyimide film with high temperature adhesive system.

  • Good dielectric properties
  • High heat resistance
  • Thermal endurance and Class H categorization

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DETAILS

Nomex Kapton NK and NKN are duplex and triplex insulation laminate materials made of calendered DuPont™ Nomex bonded to polyimide film with a proprietary high temperature adhesive. The materials are designed not to delaminate or blister at high temperatures. 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 Nomex paper provides long term thermal stability, as well as improved propagation tear strengths. Excellent Class H insulation.
CGS can also slit,sheet and die cut material to your specification, saving your time and materials.
Colors
Nomex tends to usually be a white color. Kapton Polyimide often appears brown.

Specifications

 

Product Number CGSTAPE-7958 Unit Backing
Nomex/Polyimide/Nomex Mil 2-1-2 2-2-2 3-1-3 3-2-3 3-3-3 5-3-5 5-5-5
Nominal Thickness 6 7 8 9 10 14 16
Product Yield lb/Syd 0.28 0.35 0.37 0.43 0.51 0.67 0.81
Tensile Strength (min)         MD lb/inch 100 120 118 148 170 250 300
TD 60 80 70 100 120 170 200
Elongation (min)          Unfold % 10 10 10 10 10 10 10
Fold 8 8 8 8 8 8 8

Breakdown Voltage (min)   Unfold

 KV 8 13 9 16 18 19 23

Fold

 7 12 8 15 17 18 22
Bond Strength At Room Temp. No Delamination
Bond Strength At 200±2C,10min. No Delamination, No Blister, No Adhesive Flow

 

Nomex Kapton Applications

Nomex Kapton is a highly performing solution for the insulation of electric motors and more generally rotating machines with working tem­peratures up to 200°C. These include uses such as slot liners, wedges and phase insulation in motors and generators which have thermal requirements above Class H applications.

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