Typical Properties of Free Film


Typical Properties of Free Film*

Property Test Method Terms Typical Values
Thickness   inches .003", .006"**
Specific Gravity ASTM D-972   1.26*
Area Factor   Sq. Ft. / Lb. 49.7*
Dimensional Stability 4" disc in air oven
10' @176°F
10' @266°F
10' @392°F
Percent Shrinkage  
0
20
59
Blocking 6 PSI 16 Hours Degree Fahrenheit 150
Gloss (60 deg.) ASTM D-523 Percent Reflectance 68
Contrast Ratio* ASTM D-589   > .98
WVTR ASTM E-96 grams/24 hours/100 sq. inch/atm 6 to 9
Water Absorption ASTM D-570
24 hrs @ 23°C
Percent 1.4 to 1.6
Tear Resistance ASTM D-1004
(2"/min.)
lbs. / mil 1
Tensile Strength

Yield
Rupture
ASTM D-882
(2" / min; 4" GL)
PSI  
 
5100
4800
Tensile Elongation

Yield
Rupture
ASTM D-882
(2" / min; 4" GL)
Percent  
 
4.2
75
Dielectric Strength ASTM D-149 Volts/ mil 2200
Dielectric Constant* ASTM D-150 @ 60 c/s 4.8
Dielectric Constant* ASTM D-150 @ 10(3) c/s 4.4
Volume Resistivity ASTM D-257 ohm / cm3 1 x 1016
Surface Resistivity ASTM D-257 ohm / cm2 2 x 1014

CODE GL - Gauge Length
* Based on 0.003" white film.
** Other thicknesses can be manufactured on request.

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