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Epoxy vs. ECTFE

Epoxy belongs to the thermoset plastics classification, while ECTFE belongs to the thermoplastics. There are 19 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 epoxy and the bottom bar is ECTFE.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.4
1.6
Elongation at Break, % 4.5
230
Tensile Strength: Ultimate (UTS), MPa 67
49

Thermal Properties

Maximum Temperature: Autoignition, °C 430
620
Maximum Temperature: Decomposition, °C 430
450
Maximum Temperature: Mechanical, °C 130
150
Specific Heat Capacity, J/kg-K 1500
1170
Thermal Conductivity, W/m-K 0.2
0.15
Thermal Expansion, µm/m-K 100
100

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 16
18
Electrical Resistivity Order of Magnitude, 10x Ω-m 13
14

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.7
Limiting Oxygen Index (LOI), % 20
60

Common Calculations

Stiffness to Weight: Axial, points 1.0
0.52
Stiffness to Weight: Bending, points 34
23
Strength to Weight: Axial, points 14
8.1
Strength to Weight: Bending, points 28
18
Thermal Diffusivity, mm2/s 0.1
0.078
Thermal Shock Resistance, points 20
22