CR Rubber vs. PCTFE

CR rubber belongs to the thermoset elastomers (rubber) classification, while PCTFE belongs to the thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

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

Chloroprene Rubber (CR, Neoprene)Polychlorotrifluoroethylene (PCTFE)

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, %		380
Elongation at Break, %		150

Tensile Strength: Ultimate (UTS), MPa		11
Tensile Strength: Ultimate (UTS), MPa		36

Thermal Properties

Glass Transition Temperature, °C		-45
Glass Transition Temperature, °C		100

Maximum Temperature: Autoignition, °C		410
Maximum Temperature: Autoignition, °C		580

Maximum Temperature: Decomposition, °C		350
Maximum Temperature: Decomposition, °C		370

Maximum Temperature: Mechanical, °C		130
Maximum Temperature: Mechanical, °C		150

Specific Heat Capacity, J/kg-K		1120
Specific Heat Capacity, J/kg-K		920

Thermal Conductivity, W/m-K		0.19
Thermal Conductivity, W/m-K		0.21

Otherwise Unclassified Properties

Density, g/cm³		1.5
Density, g/cm³		2.1

Limiting Oxygen Index (LOI), %		26
Limiting Oxygen Index (LOI), %		80

Common Calculations

Strength to Weight: Axial, points		1.9
Strength to Weight: Axial, points		4.6

Strength to Weight: Bending, points		7.1
Strength to Weight: Bending, points		11

Thermal Diffusivity, mm²/s		0.11
Thermal Diffusivity, mm²/s		0.11

CR Rubber vs. PCTFE

Mechanical Properties

Thermal Properties

Otherwise Unclassified Properties

Common Calculations

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