This document provides specifications for three different materials: Parylene N, Parylene C, and PTFE (Teflon). It includes their thermal properties like melting points and coefficients. It also lists their mechanical properties such as Young's modulus, tensile strength, and density. Finally, it provides their electrical properties including dielectric constants, dissipation factors, and volume resistivity. The document appears to be comparing these three materials for various applications.

1. °C 420 290 335
°F 788 554 635
°C 60 80 260
°F 140 176 500
°C 80 100 315
°F 176 212 600
Linear Coefficient of Thermal
Expansion (α) @ 25°C (ppm)
69 35 100
Thermal Conductivity (k) 0.1226 0.084 0.25
Specific Heat (c) @ 20°C, (J/(g*K)) 0.837 0.712 1.4
Continuous Service Temperature
Short-Term Service Temperature
Thermal
Properties
Melting Point
Gas
Permeability
Nitrogen (N2) 3.0 0.4
Oxygen (O2) 15.4 2.8
Carbon Dioxide (CO2) 84.3 3.0
Hydrogen (H2) 212.6 43.3
Parylene Specifications
GPa
psi
MPa
psi
MPa
psi
%
%
g/cm3
lb/ft3
% after 24 hours
Rockwell
2.4 2.8 0.55
350,000 400,000 80,000
48.3 68.9 26.9
7,000 10,000 3,900
42.1 55.2 23
6,100 8,000 3,300
Elongation to Break 250 200 300
Yield Elongation 2.5 2.9
1.11 1.289 2.16
69.3 80.5 134.8
Water Absorption <0.1 <0.1 <0.1
Hardness R85 R80 R58
Coefficient of Static Friction (µs) 0.25 0.29 0.15
Coefficient of Kinetic Friction (µs) 0.25 0.29 0.10
Mechanical
Properties
Young's Modulus
Tensile Strength
Yield Strength
Density
Units Parylene N Parylene C PTFE (Teflon)
Units Parylene N Parylene C PTFE (Teflon)
Units Parylene N Parylene C PTFE (Teflon)
Electrical
Properties
V/um @ 25.4um 276 220 60
V/mil @ 0.001" 7000 5600 1500
ohm-meter, 23°C
@ 50% RH 1.4E+15 8.8E+14 1.0E+16
ohm-inch, 73°F
@ 50% RH
5.5E+16 3.5E+16 3.90E+17
Dielectric Constant (k)
60 Hz 2.65 3.15
1KHz 2.65 3.10
1MHz 2.65 2.95 2.1
Dissipation Factor
60 Hz 0.0002 0.020
1KHz 0.0002 0.019
1MHz 0.0006 0.013 <0.0002
Dielectric Strength
Volume Resistivity
@25°C
(cc * mm) /
(m2 * day * atm)
VSI Parylene 685 S. Arthur Ave., Unit 7 Louisville, Colorado 80027
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