Imidex ^®
Polyimide Film Specifications

GENERAL PROPERTIES

Imidex ^® 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 +446°F (+230°C). Imidex offers good dimensional stability combined with excellent chemical resistance -- there are no known solvents.

Imidex ^® polyimide film is similar to DuPont ™ Kapton ^® material. It is manufactured by Westlake Plastics Company from Aurum ^® polyimide resin.

Imidex ^® 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

AVAILABILITY
Imidex ^® thermoplastic polyimide is offered in a single grade in thicknesses from .001" to .040", in rolls up to 26"wide.

( see also Kapton Film Specifications )

TYPICAL PROPERTIES of IMIDEX POLYIMIDE FILM (0.001" at 73°F)
ASTM or UL test	Property	Imidex ®
PHYSICAL
D792	Density (lb/in³) (g/cm³)	0.048 1.33
D1894	Coefficient of Friction - Kinetic	-
D1894	Coefficient of Friction - Static	-
MECHANICAL
D638	Ultimate Tensile Strength (psi)	17,100
D638	Yield Point at 3% (psi)	-
D638	Stress to Produce 5% Elongation (psi)	-
D790	Ultimate Elongation (%)	110
D790	Tensile Modulus (psi)	440,000
D1922	Tear Strength - Propagating (Elmendorf) (lbf)	2.8
D1004	Tear Strength - Initial (Graves) (psi)	50.4
THERMAL
-	Max Operating Temp (°F / °C)	446 / 230
D696	Coefficient of Linear Thermal Expansion (x 10 -5 in./in./°F)	3.1
-	Glass Transition Temp (°F / °C)	-
-	Melting Point (°F / °C)	730 / 388
C177	Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10 -4 cal/cm-sec-°C)	0.11 0.43
UL94	Flammability Rating	V-0
ELECTRICAL
D149	Dielectric Strength (V/mil) short time	6290
D150	Dielectric Constant at 1 kHz	2.5
D150	Dissipation Factor at 1 kHz	0.0014
D257	Volume Resistivity (ohm-cm)at 50% RH	-
OPTICAL
D1003	Haze (%)	0.1
D1003	Light Transmission (%)	64
D542	Refractive Index (Sodium D Line)	-

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.

IMIDEX is a registered trademark of Westlake Plastics Company.
AURUM is a registered trademark of Mitsui Chemical Company.
KAPTON is a registered trademark of DuPont.