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Premium N-K-N Flexible Laminate Insulation Sheet - 2-3-2 Construction
Our N-K-N (Nomex-Kapton-Nomex) Insulation Sheet is a high-grade, 3-ply electrical laminate engineered for heavy-duty electrical systems. Constructed using a rugged 2-3-2 configuration (2 mil Nomex / 3 mil Kapton / 2 mil Nomex), this 36" x 36" sheet provides an overall nominal thickness of 7 mils. It combines the superior thermal stabilization and tear resistance of DuPont Nomex® paper with the upgraded electrical barrier properties of an extra-thick Kapton® polyimide film core.
Rated for Class H (180°C to 220°C) continuous operations, this flexible composite sheet maintains its structural integrity and electrical isolating characteristics under intense thermal spikes, mechanical stress, or harsh chemical exposure. It is highly conformable, easy to die-cut or slice, and is ideal for custom high-voltage phase barriers and lining applications.
Technical Specifications
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Property
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Specification
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Material Composition
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N-K-N (Nomex / Kapton Polyimide Film / Nomex)
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Layer Configuration
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2-3-2 Mil (Total Nominal Thickness: 7 Mils / 0.17 mm)
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Sheet Dimensions
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36" x 36" (3 ft. x 3 ft.)
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Insulation Class
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Class H (180°C / 356°F continuous operating temperature)
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Dielectric Breakdown
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> 12.0 kV (Typical value based on construction thickness)
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Chemical Resistance
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Excellent resistance to common industrial solvents, acids, and transformer oils
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NKN 2-3-2 Material Specifications
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Property
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Value
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Description
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Voltage Resistance
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≥ 9,000 to 11,000 V
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Dielectric strength prevents electrical leaks.
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Thickness Code (2-3-2)
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7 MIL (0.18 mm)
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Total thickness (2 mil Nomex / 3 mil Polyimide / 2 mil Nomex)
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Max Temperature
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220° C
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Maximum operating temperature without breaking down.
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Tensile Strength
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≥ 150 lbs/inch
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High mechanical strength resists tearing.
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Volume Resistivity
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10¹⁵ Ω-cm
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Excellent electrical isolation. |
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