Kapton® Polyimide films

Kapton® MT and Kapton® FMT

 
 
 

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. The Kapton® FMT polyimide film provides all the benefits of the Kapton® MT polyimide film with the addition of a fluoropolymer resin coated on both sides of the film.

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

Kapton® MT and Kapton® FMT films have higher modulus than HN; this offers improved strength to the final product. 

Applications include:

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

ELECTRICAL PROPERTIES of Kapton® MT

PROPERTY

1 MIL

1.5MIL

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