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Formula: PI
Form: Metallized Film
Material: Polyimide (PI)
CAS Number: 60842-76-4
Commodity: Polymers
Metallized With: Aluminum - 50-80 nm
Thickness: 0.025mm
Surface Finish: Metallized On One Side

Polyimide Film Metallized with Aluminum (50-80 nm)

Polyimide Film Metallized with 50 - 80nm Aluminum merges the high heat resistance, dielectric strength, and chemical stability of polyimide with a precisely deposited nanometric aluminium coating, delivering enhanced electromagnetic shielding and barrier performance. This format is valuable in aerospace, electronics, and optics, where both electrical insulation and conductive or reflective surfaces are needed. Industries use it for EMI shielding in spacecraft electronics, reflective insulation in optical systems, and precision masking in photolithography. Specific applications include thermal–optical control layers in satellites, antenna subcomponent shielding, and reflective barriers in high-vacuum instrumentation. In research, it supports the study of metal–polymer adhesion, thin-metal film durability under thermal cycling, and optoelectronic device prototyping. The synergy of metallisation and polyimide’s thermal stability ensures consistent performance in extreme operational environments.
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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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