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DuPont™ NOMEX® NKN 2-2-2 Laminates Type NK and Type NKN are duplex and triplex laminates constructed of calendared NOMEX® NKN 2-2-2 paper bonded to KAPTON® polyimide film with a proprietary high temperature adhesive system. These laminates are designed not to delaminate or blister at high temperatures.
| Product | Thickness Nominal (Inches) | Product Yield yd2 /lb) |
Product Yield (lb/yd2 ) |
Dielectric Strength (Volts) | Volume Resistivity (ohms-cm) | Surface Resistivity (ohms/square) | MD Tensile Strength (Ib/In Width) | XD Tensile Strength (Ib/In Width) | MD Tear Strength (Ibs) | XD Tear Strength (Ibs) |
|---|---|---|---|---|---|---|---|---|---|---|
| NK 2-1 | 0.003 | 5.90 | 0.17 | 6,000 | 10¹⁵ | 10¹³ | 60 | 40 | 5 | 3 |
| NK 2-2 | 0.004 | 4.17 | 0.24 | 9,000 | 10¹⁵ | 10¹³ | 70 | 45 | 6 | 4 |
| NK 3-1 | 0.004 | 4.55 | 0.22 | 7,000 | 10¹⁵ | 10¹³ | 72 | 46 | 5 | 3 |
| NK 3-2 | 0.005 | 3.57 | 0.28 | 9,000 | 10¹⁵ | 10¹³ | 80 | 60 | 6 | 5 |
| NK 3-3 | 0.006 | 2.86 | 0.35 | 13,500 | 10¹⁵ | 10¹³ | 90 | 70 | 12 | 8 |
| NK 5-5 | 0.010 | 1.72 | 0.58 | 20,000 | 10¹⁵ | 10¹³ | 100 | 80 | 14 | 10 |
| NKN 2-1-2 | 0.006 | 3.57 | 0.28 | 9,000 | 10¹⁵ | 10¹³ | 100 | 60 | 6 | 5 |
| NKN 2-2-2 | 0.007 | 2.85 | 0.35 | 14,000 | 10¹⁵ | 10¹³ | 122 | 81 | 8 | 6 |
| NKN 3-1-3 | 0.008 | 2.70 | 0.37 | 10,000 | 10¹⁵ | 10¹³ | 120 | 73 | 9 | 6 |
| NKN 3-2-3 | 0.009 | 2.32 | 0.43 | 17,000 | 10¹⁵ | 10¹³ | 150 | 100 | 10 | 9 |
| NKN 3-3-3 | 0.010 | 1.96 | 0.51 | 19,000 | 10¹⁵ | 10¹³ | 170 | 120 | 12 | 10 |
| NKN 3-5-3 | 0.011 | 1.58 | 0.63 | 20,000 | 10¹⁵ | 10¹³ | 190 | 140 | 15 | 11 |
| NKN 5-1-5 | 0.011 | 1.82 | 0.55 | 13,000 | 10¹⁵ | 10¹³ | 190 | 140 | 6 | 5 |
| NKN 5-2-5 | 0.012 | 1.69 | 0.59 | 18,000 | 10¹⁵ | 10¹³ | 220 | 120 | 15 | 10 |
| NKN 5-3-5 | 0.013 | 1.49 | 0.67 | 21,000 | 10¹⁵ | 10¹³ | 260 | 180 | 21 | 14 |
| NKN 5-5-5 | 0.016 | 1.23 | 0.81 | 25,000 | 10¹⁵ | 10¹³ | 330 | 220 | 26 | 16 |
| NKN 7-1-7 | 0.015 | 1.33 | 0.75 | 16,500 | 10¹⁵ | 10¹³ | 200 | 155 | 15 | 10 |
These products are available as 36-yard rolls of slit tape, from ½ inch in width, on 3-inch diameter cores. They are also available as full width trimmed (36 inch wide) rolls in 25, 50, and 100-yard length. Cut sheets, special core sizes, and non-standard roll lengths are available upon request.
The properties shown in this data sheet are typical values, and should not be used as specification limits. Contact DuPont for assistance in preparing specifications of these materials for your application.
The shelf life of NOMEX® laminates is in excess of one year when they are stored at or below room temperature.
Material Safety Data Sheets (MSDS) describing the use of these products are available upon request from DuPont.
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