Cirlex ® Polyimide Film

PHYSICAL
ASTM or UL test Property Results

D792

Density (lb/in³)
(g/cm³)

0.051
1.42

D570

Water Absorption, saturation (%)

4.0

MECHANICAL

D638

Tensile Strength (psi)

32,490

D638

Yield Point at 3% (psi)

6,100

D638

Stress to Produce 5% Elongation (psi)

10,300

D790

Ultimate Elongation (%)

65

D790

Tensile Modulus (psi)

330,000

THERMAL

-

Glass Transition Temp (°F / °C)

664 / 351

D696

Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)

11

C177

Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)


0.0025
0.084

C177

Specific Heat
(J/g-°K)

1.09

UL94

Flammability Rating

V-0

ELECTRICAL

D149

Dielectric Strength (V/mil) short time

2790

D150

Dielectric Constant at 1 kHz

3.45

D150

Dissipation Factor

0.0021

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.