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FFKM vs. FKM Rubber

Both FFKM and FKM rubber are thermoset elastomers (rubber). There are 6 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is FFKM and the bottom bar is FKM rubber.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.0
1.8
Elongation at Break, % 170
300
Maximum Temperature: Mechanical, °C 280
220
Strength to Weight: Axial, points 2.3
1.1
Strength to Weight: Bending, points 7.2
4.7
Tensile Strength: Ultimate (UTS), MPa 16
7.5