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CR Rubber vs. FFKM

Both CR rubber and FFKM are thermoset elastomers (rubber). There are 6 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.5
2.0
Elongation at Break, % 380
170
Maximum Temperature: Mechanical, °C 130
280
Strength to Weight: Axial, points 1.9
2.3
Strength to Weight: Bending, points 7.1
7.2
Tensile Strength: Ultimate (UTS), MPa 11
16