GENERAL PROPERTIES DuPont ™ Kapton® polyimide film is a high performance polymer which combines excellent physical, electrical, and mechanical properties at temperatures as low as -452°F (-269°C) and as high as +752°F (+400°C). DuPont ™ Kapton® offers excellent dimensional stability combined with excellent chemical resistance -- there are no known solvents. DuPont ™ Kapton® is a product of DuPont.
DuPont ™ Kapton® polyimide film is Amber in color.
TYPICAL APPLICATIONS • 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
DuPont TM KAPTON® GRADES DuPont ™ Kapton® HN
Standard-grade Kapton® HN film excels in low and high temperature environments. Type HN film can be laminated, metallized, punched, formed, or adhesive coated. It is available in thicknesses from 0.0003" (7.5 µm) up to 0.005" (125 µm).
DuPont ™ Kapton® VN
This grade has all of the properties of Type HN, plus superior dimensional stability. Type VN is also available in thicknesses from 0.0003" (7.5 µm) up to 0.005" (125 µm).
Other DuPont ™ Kapton® Grades
Other grades are available with the following attributes: antistatic, thermally conductive, ptfe coated, cryogenic insulation, corona resistant, etchable, pigmented for color, and conformable.
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TYPICAL PROPERTIES of KAPTON POLYIMIDE FILMS (0.001" at 73°F) | ||
| ASTM or UL test | Property | DuPont ™ Kapton® HN |
| PHYSICAL | ||
| D792 | Density (lb/in³) (g/cm³) |
0.051 1.42 |
| D1894 | Coefficient of Friction - Kinetic | 0.48 |
| D1894 | Coefficient of Friction - Static | 0.63 |
| MECHANICAL | ||
| D638 | Ultimate Tensile Strength (psi) | 33,500 |
| D638 | Yield Point at 3% (psi) | 10,000 |
| D638 | Stress to Produce 5% Elongation (psi) | 13,000 |
| D790 | Ultimate Elongation (%) | 72 |
| D790 | Tensile Modulus (psi) | 370,000 |
| D1922 | Tear Strength - Propagating (Elmendorf) (lbf) | 0.07 |
| D1004 | Tear Strength - Initial (Graves) (psi) | 1.6 |
| THERMAL | ||
| - | Max Operating Temp (°F / °C) | 752 / 400 |
| D696 | Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) |
1.1 |
| - | Glass Transition Temp (°F / °C) | 725 / 385 |
| - | Melting Point (°F / °C) | none |
| C177 | Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) |
0.83 2.87 |
| UL94 | Flammability Rating | V-0 |
| ELECTRICAL | ||
| D149 | Dielectric Strength (V/mil) short time | 7700 |
| D150 | Dielectric Constant at 1 kHz | 3.4 |
| D150 | Dissipation Factor at 1 kHz | 0.0018 |
| D257 | Volume Resistivity (ohm-cm)at 50% RH | 1.5 x 1017 |
| OPTICAL | ||
| D1003 | Haze (%) | - |
| D1003 | Light Transmission (%) | - |
| D542 | Refractive Index (Sodium D Line) | 1.70 |
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.KAPTON, CIRLEX and VESPEL are registered trademarks of DuPont.
All values at 73°F (23°C) unless otherwise noted.
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