MakeItFrom.com
Menu (ESC)

FEP vs. CA

Both FEP and CA are thermoplastics. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is FEP and the bottom bar is CA.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 300
25 to 30
Flexural Modulus, GPa 0.6
1.7 to 2.1
Flexural Strength, MPa 24
40 to 55
Tensile Strength: Ultimate (UTS), MPa 20
30 to 37

Thermal Properties

Glass Transition Temperature, °C 60
230
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 50
65 to 75
Heat Deflection Temperature At 455 kPa (66 psi), °C 70
75 to 85
Maximum Temperature: Autoignition, °C 630
400
Specific Heat Capacity, J/kg-K 1170
1500
Thermal Conductivity, W/m-K 0.22
0.25
Thermal Expansion, µm/m-K 95
14

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 2.0
3.6
Dielectric Strength (Breakdown Potential), kV/mm 22
15
Electrical Resistivity Order of Magnitude, 10x Ω-m 16
16

Otherwise Unclassified Properties

Density, g/cm3 2.1
1.3
Limiting Oxygen Index (LOI), % 80
17
Refractive Index 1.4
1.5
Water Absorption After 24 Hours, % 0.010
2.3

Common Calculations

Strength to Weight: Axial, points 2.6
6.4 to 7.9
Strength to Weight: Bending, points 7.6
17 to 19
Thermal Diffusivity, mm2/s 0.088
0.13