Technical Data Sheet
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DuPont™ Kapton® MT PI Disc

Goodfellow's range of DuPont™ Kapton® MT PI Discs offers 30 variations of this high-performance product. Known for its excellent thermal, mechanical and electrical properties, Kapton® MT is widely used in flexible printed circuits, wire and cable insulation, motor and transformer windings, and magnet wire coatings. With options for multiple diameters and thicknesses, our range of Kapton® MT Discs provide versatile solutions for demanding applications in aerospace, automotive, industrial, and electronics industries where toughness, temperature resistance and dielectric strength are required.
Thickness: 0.075mm
Diameter: 12.5mm
Technical Name: Polyimide
Grade: DuPont™ Kapton® MT
Formula: PI
Density: 1.42g/cm³
CAS Number: 60842-76-4
UOM Code: 167-695-49
SKU: 1000061088
Product Code: IM30-FM-000202


Thickness ±20%
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Thickness ±20%
Technical Data Sheet
Safety Data Sheet

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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 ) 02-Mar
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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