Conformal -
coating.com

Search Our Site:

Conformal-Coating.com
What is Parylene?
Parylene Benefits
Parylene Applications
ParyleneTechnical
   Parylene “C” Specs
   Electrical
   Physical
      Physical Comp.
   Mechanical
      Taber Wear Index
  Thermal
  Barrier
   Optical
   Chemical
Parylene Bulletin Board
Parylene Resources
Industry Specifications
Design Considerations
Frequently Asked
    Questions
 

Electrical Properties 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 1Properties  measured on parylene films, 0.001 inch thick. 2Properties depend  somewhat on deposition conditions.