Boedeker Plastics, Inc. Logo -- boedeker plastics supply shiner
     texas tx usa boedeker plastics material supply shiner texas usa plastics
     distributor plastics sales plastics supply plastics machine shop

DuPont Cirlex ®
Polyimide Film Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

1-800-444-3485

BPI Home Page | Applications | Materials Guide | Contact Us!

blue line

GENERAL PROPERTIES
DuPont Cirlex ® 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 +650°F (+340°C).

Made from the same material as DuPont Kapton ® polyimide film, Cirlex ® has the same excellent balance of physical, chemical, and electrical properties over a wide temperature range.

Cirlex ® can be modified by laser cutting, drilling, machining, stamping, shearing and chemical etching to very exact tolerances.

Cirlex ® is available in sheet sizes up to 23.5" x 23.5" (597 mm x 597 mm), and thicknesses from 0.006" (0.15 mm) to 0.125" (3.175 mm) in thickness increments of 0.001". Custom sheet sizes are also available upon special request. Cirlex ® is packaged in "lay-flat" containers with protective interleaving.

DuPont Cirlex® is a product of DuPont, and is Amber in color.

TYPICAL APPLICATIONS
• PCB stencils • loudspeaker components • flexible printed circuit board substrates • metal clad, thick polymide materials (>0.008" thick) • high-density electronic interconnects • high-temperature mechanical seals
( see also Vespel, Kapton Film, and Imidex Film Polyimide Specifications )

blue line


TYPICAL PROPERTIES of CIRLEX POLYIMIDE FILMS (at 73°F)

ASTM or UL test Property Cirlex ® 900CL
0.009" (.23mm)
Cirlex ®1200CL
0.012" (.31mm)
Cirlex ®1500CL
0.015" (.38mm)
Cirlex ®3000CL
0.030" (.76mm)
Cirlex ®5000CL
0.050" (1.27mm)
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.051
1.42
0.051
1.42
0.051
1.42
0.051
1.42
0.051
1.42
D570 Water Absorption, saturation (%) 4.0 4.0 4.0 4.0 4.0
MECHANICAL
D638 Tensile Strength (psi) 32,490 34,000 35,000 33,300 31,800
D638 Yield Point at 3% (psi) 6,100 6,500 7,800 7,100 6,100
D638 Stress to Produce 5% Elongation (psi) 10,300 10,800 11,200 10,370 9,400
D790 Ultimate Elongation (%) 65 64 63 57 56
D790 Tensile Modulus (psi) 330,000 332,000 334,000 274,000 264,000
THERMAL
- Glass Transition Temp (°F / °C) 664 / 351 664 / 351 664 / 351 664 / 351 664 / 351
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
11 11 11 11 11
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

0.0025
0.084

0.0025
0.084

0.0025
0.084

0.0025
0.084

0.0025
0.084
C177 Specific Heat
(J/g-°K)
1.09 1.09 1.09 1.09 1.09
UL94 Flammability Rating V-0 V-0 V-0 V-0 V-0
ELECTRICAL
D149 Dielectric Strength (V/mil) short time 2790 2000 1940 1270 arc
D150 Dielectric Constant at 1 kHz 3.45 3.55 3.58 3.74 3.72
D150 Dissipation Factor 0.0021 0.0020 0.0018 0.0023 0.0026

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.
KAPTON, CIRLEX and VESPEL are registered trademarks of DuPont.
blue line

Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

©     Copyright Boedeker Plastics, Inc.