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SBR Rubber vs. PFA

SBR rubber belongs to the thermoset elastomers (rubber) classification, while PFA belongs to the thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SBR rubber and the bottom bar is PFA.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.1
2.2
Elongation at Break, % 530
300
Limiting Oxygen Index (LOI), % 18
80
Maximum Temperature: Mechanical, °C 100
260
Specific Heat Capacity, J/kg-K 1880
1000
Strength to Weight: Axial, points 3.4
3.9
Strength to Weight: Bending, points 11
10
Tensile Strength: Ultimate (UTS), MPa 14
30
Thermal Conductivity, W/m-K 0.17
0.25
Thermal Diffusivity, mm2/s 0.082
0.12