Kapton® Polyimide films

Kapton® MT

Thermal conductivity properties ideal for controlling and managing heat in electronic assemblies

DuPont™ Kapton® MT polyimide film is a homogeneous film possessing 3x the thermal conductivity and cut through strength of standard Kapton® HN.

Kapton® MT offers an excellent combination of electrical properties, thermal conductivity and mechanical toughness for its use in electronic and automotive applications.

Kapton® MT has higher modulus than HN; this offers improved strength to the final product. As all Kapton® films, MT retains its properties for extended storage periods in original packaging at temperatures between 4–29°C (40–85°F).

Applications include:

  • Insulation pads (heat sink)
  • Heater circuits
  • Power supplies
  • Ceramic board replacement

ELECTRICAL PROPERTIES OF Kapton® MT

PROPERTY

1 MIL

1.5 MIL

2 MIL

3 MIL

TEST METHOD

Dielectric Strength, V/mil

5,500

5,100

4,600

4,100

ASTM D149

Dielectric Constant

4.2

4.2

4.2

4.2

ASTM D150

Thermal Conductivity, W/m*K

.46

.46

.46

.46

ASTM D5470

Volume Resistivity

>1016

>1016

>1016

>1016

ASTM D257

For complete information on Kapton® MT, view data sheet.