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Specification of Parylene


Typical Specifications of Parylene C
 
  PARYLENE C VALUE ASTM METHOD
  GENERAL
 Density (g/cm) 1.289 D1505
 Refractive welcome 1.639  
  ELECTRICAL
 Dielectric strength
 (voltage breakdown)
 volts/mil
5,600 volts D149
 Dielectric constant   D150
  60 Hz 3.15  
  1 kHz 3.10  
  1 MHz 2.95  
 Dissipation factor   D150
  60 Hz 0.020  
  1 kHz 0.019  
  1 MHz 0.013  
 Dielectric strength
 @ 25µm, short time
 MV/m
220 D149
 Dielectric strength
 @ 25µm, step-by-step
 MV/m
185 D149
 Volume resistivity
 @ 23ºC, 50% RH, ohms
8.8 x 1016 D257
 Surface resistivity
 @ 23ºC, 50% RH, ohms
1 x 1014 D257
  MECHANICAL
 Tensile modulus, GPa 3.2 D882
 Tensile strength, MPa 70 D882
 Tensile strength, psi 10,000 D882
 Yield strength, MPa 5.5 D882
 Elongation to break, % 200 D882
 Yield elongation, % 2.9 D882
 Coefficient of  friction-static 0.29 D1894
 Coefficient of  friction-dynamic 0.29 D1894
 Rockwell hardness R80 D785
  THERMAL
 Melting point, ºC 290ºC  
 Linear coefficient of
 expansion (10-5/ºC)
3.5 D696
 Thermal conductivity @ 25ºC
 (watts/meter-Kelvin)
0.082 C177
 Specific heat @ 20ºC
 cal/g/ºC
0.17  
  BARRIER
 Water absorption, % (24 hr) 0.06 (.029") D570
 Water vapor transmission
 @ 37ºC (ng)
0.0004 D570
 Gas permeability
 cc-mil/100  in 2 - 24 hrs
   
 N2 0.6  
 O2 5  
 CO2 14  
 H2 110  
 Moisture vapor transmission
 gm-mil/100 in - 24 hrs
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