PROPERTIES1 |
METHOD OR CONDITIONS |
PARYLENE C |
EPOXIES2 |
SILICONES2 |
URETHANES2 |
Dielectric strength, volts/mil short time (1 mil films) |
ASTM D149-64 |
5,000 |
Corr. to 1/8" |
ASTM D149-64 |
590 |
400-500 |
550 |
450-500 |
Step-by-step (1 mil films) |
ASTM D149-64 |
4,700 |
n/a |
n/a |
n/a |
Volume resistivity, ohms (23ºC, 50% RH) |
ASTM D257-61 (Dielectric -- 1 in2 mercury) |
8.8 x 1016 |
1012-1017 |
2 x 1015 |
2 x 1011-1015 |
Surface resistivity, ohms (23ºC, 50% RH) |
ASTM D257-61 (Dielectric -- 1 in2 mercury) |
1014 |
n/a |
n/a |
n/a |
Dielectric constant: |
ASTM D160-65T (Dielectric -- 1 in2 mercury) |
|
 60 Hz
|
3.15 |
3.5-5.0 |
7.75-3.05 |
4-7.5 |
103 Hz |
3.10 |
3.5-4.5 |
n/a |
4-7.5 |
106 Hz |
2.95 |
3.3-4.0 |
2.6-2.7 |
6.5-7.1 |
Dissipation factor: |
ASTM D150-65T (Dielectric -- 1 in2 mercury) |
|
60 Hz |
0.020 |
0.002-0.01 |
0.007-0.001 |
0.015-0.017 |
103 Hz |
0.019 |
0.002-0.02 |
n/a |
0.05-0.06 |
106 Hz |
0.013 |
0.03-0.05 |
0.001-0.002 |
n/a |
|
|
1.Properties measured on parylene films, 0.001 inch thick.
2.Properties depend somewhat on deposition conditions.
|