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FEP vs. PP Homopolymer

Both FEP and PP homopolymer are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (22, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 300
3.0 to 80
Flexural Modulus, GPa 0.6
1.5 to 7.0
Flexural Strength, MPa 24
41 to 100
Tensile Strength: Ultimate (UTS), MPa 20
36 to 93

Thermal Properties

Glass Transition Temperature, °C 60
170
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 50
73 to 160
Maximum Temperature: Mechanical, °C 200
120
Specific Heat Capacity, J/kg-K 1170
1230 to 1900
Thermal Expansion, µm/m-K 95
30 to 90

Otherwise Unclassified Properties

Density, g/cm3 2.1
0.91 to 1.2

Common Calculations

Strength to Weight: Axial, points 2.6
11 to 21
Strength to Weight: Bending, points 7.6
27 to 37