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Grade: DuPont™ Kapton® HN
Formula: PI
Form: Metallized Film
Material: Polyimide (PI)
CAS Number: 60842-76-4
Commodity: Polymers
Metallized With: Aluminum - 30 nm
Surface Finish: Metallized On One Side

Kapton® HN Polyimide Film Metallized with Aluminum (30 nm)

Kapton® HN Polyimide Film Metallized with 30 nm Aluminum combines the high-temperature stability, dielectric strength, and chemical resistance of Kapton® HN with the added functionality of a precision aluminum coating. The 30 nm metallization layer provides controlled electrical conductivity and effective electromagnetic or optical shielding while maintaining the film’s flexibility and thermal endurance. This makes it highly suitable for aerospace electronics, precision sensing equipment, and EMI shielding in miniaturized devices. Specific applications include reflective thermal control films for spacecraft, conductive layers in flexible circuit substrates, and shielding laminates for sensitive instrumentation. In research, it supports investigations into thin-film metallization adhesion, thermal emissivity control, and microcircuit reliability under space-like environments. The combination of robust polymer performance with nanoscale metallic functionality makes this material vital for advanced engineering solutions in harsh service conditions.
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Tolerances

Metallised Film
Thickness ±10%
Sizes
Linear dimension <100mm ±1mm
Linear dimension >=100mm +2% / -1%

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Poor
Acids - dilute Fair
Alcohols Poor
Alkalis Poor
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good
Halogens Fair
Ketones Good
Mechanical Properties
Element Value
Coefficient of friction 0.42
Hardness - Rockwell E52-99
Elongation at break( % ) Aug-70
Tensile modulus( GPa ) 2.0 – 3.0
Izod impact strength( J m⁻¹ ) 80
Tensile strength( MPa ) 70-150
Electrical Properties
Element Value
Dielectric constant @1MHz 3.4
Dissipation factor @ 1kHz 0.0018
Dielectric strength( kV mm⁻¹ ) 22
Surface resistivity( Ohm/sq ) 10¹⁶
Volume resistivity( Ohmcm ) 10¹⁸
Physical Properties
Element Value
Flammability V0
Radiation resistance Good
Refractive index 1.66
Resistance to Ultra-violet Poor
Limiting oxygen index( % ) 53
Water absorption - over 24 hours( % ) 0.2-2.9
Density( gcm⁻³ ) 1.42
Thermal Properties
Element Value
Heat-deflection temperature - 1.8MPa( C ) 360
Lower working temperature( C ) -270
Upper working temperature( C ) 250-320
Specific heat( J K⁻¹ kg⁻¹ ) 1090
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.1-0.35@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 30-60

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