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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

Specifications

PhysicalAstm Test MethodDuPont™ Kapton® HN
Density (lb/in^3)D7920.051
Specific GravityD7921.42
Coefficient of Friction – KineticD18940.48
Coefficient of Friction – StaticD18940.63
Mechanical
Ultimate Tensile Strength (PSI)D63833,500
Yield Point at 3% (PSI)D63810,000
Stress to Produce 5% Elongation (PSI)D63813,000
Ultimate Elongation (%)D79072
Tensile Modulus (PSI)D790370,000
Tear Strength – Propagating (Elmendorf)
(LBF)
D19220
Tear Strength – Initial (Graves) (PSI)D10041.6
Thermal
Coefficient of Thermal
Expansion, 10^-5/°F
D6961.1
Melting Point, °FNone
Glass Transition Temp (°F)725
Thermal Conductivity, BTU-in/hr-ft² °FC1770.83
Flammability RatingUL94VO
Electrical
Dielectric Strength, Short Term,
(Volts/Mil)
D1497700
Volume Resistivity (ohm-cm) @ 50% RHD2571.50 x 10^17
Dielectric Constant at 1 kHzD1503.4
Dissipation Factor at 1 kHzD1500.0018
Optical
Light Transmission (%)D1003
Haze (%)D1003
Refractive Index (Sodium D Line)D5421.7

Disclosure: 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.

 

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