DUPONT™ KAPTON® HN (POLYIMIDE)

DUPONT™ KAPTON® HN (POLYIMIDE)

Material Information

Dupont™ Kapton® polyimide film is an amber colored high performance polymer. It is known to offer a combination of excellent physical, electrical, and mechanical properties over a wide range of temperatures (-425º F to 752º F). Dupont™ Kapton® also has excellent dimensional stability as well as excellent chemical, radiation, and flame resistance.

Dupont™ Kapton® HN is an all purpose standard grade Dupont™ Kapton® which excels in low and high temperature environments. It can be laminated, metallized, punched, formed, or adhesive coated.

Application

  • Wire and cable tapes
  • Formed coil insulation
  • Flexible printed circuit board substrates
  • Motor slot liners
  • Magnet wire insulation
  • Transformer and capacitor insulation
  • Magnetic and pressure-sensitive tapes
  • Tubing

Properties

  • Excels in low and high temperature environments (-425º F to 752º F)
  • Excellent physical, electrical, and mechanical properties
  • Excellent chemical, radiation, and flame resistance

Physical

Astm Test Method

DuPont™ Kapton® HN

Density (lb/in^3) D792 0.051
Specific Gravity D792 1.42
Coefficient of Friction – Kinetic D1894 0.48
Coefficient of Friction – Static D1894 0.63

Mechanical

Ultimate Tensile Strength (PSI) D638 33,500
Yield Point at 3% (PSI) D638 10,000
Stress to Produce 5% Elongation (PSI) D638 13,000
Ultimate Elongation (%) D790 72
Tensile Modulus (PSI) D790 370,000
Tear Strength – Propagating (Elmendorf)
(LBF)
D1922 0
Tear Strength – Initial (Graves) (PSI) D1004 1.6

Thermal

Coefficient of Thermal
Expansion, 10^-5/°F
D696 1.1
Melting Point, °F None -
Glass Transition Temp (°F) - 725
Thermal Conductivity, BTU-in/hr-ft² °F C177 0.83
Flammability Rating UL94 VO

Electrical

Dielectric Strength, Short Term,
(Volts/Mil)
D149 7700
Volume Resistivity (ohm-cm) @ 50% RH D257 1.50 x 10^17
Dielectric Constant at 1 kHz D150 3.4
Dissipation Factor at 1 kHz D150 0.0018

Optical

Light Transmission (%) D1003 -
Haze (%) D1003 -
Refractive Index (Sodium D Line) D542 1.7

NOTE:

The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.