MakeItFrom.com
Menu (ESC)

PBT vs. IR Rubber

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

For each property being compared, the top bar is PBT and the bottom bar is IR rubber.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.3 to 1.5
1.0
Elongation at Break, % 2.5 to 43
600
Glass Transition Temperature, °C 40
-70
Limiting Oxygen Index (LOI), % 20
19
Maximum Temperature: Autoignition, °C 380
300
Maximum Temperature: Decomposition, °C 380
300
Specific Heat Capacity, J/kg-K 1040 to 1200
1550
Strength to Weight: Axial, points 12 to 25
5.6
Strength to Weight: Bending, points 25 to 38
17
Tensile Strength: Ultimate (UTS), MPa 58 to 140
19