Properties of Neoprene (CPR)
Neoprene is a synthetic rubber material known for its versatility, durability, and resistance to oils, chemicals, heat, and weathering. It’s commonly used in various applications such as wetsuits, laptop sleeves, orthopedic braces, automotive fan belts, and more due to its flexibility and ability to provide insulation and protection.
The following table provides a comprehensive list of neoprene (CPR) properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Category | Elastomer |
| Density | 1230 - 1250 kg/m3 |
| Mechanical Properties | Metric |
| Yield Tensile Strength | 3.4 - 24.1 MPa |
| Young’s Modulus (E) | 0.7 - 20 GPa |
| Elongation at Break | 100 - 800% |
| Shore Hardness (A) | 30 - 95 |
| Thermal Properties | Metric |
| Melting Point | 80 °C |
| Thermal Conductivity | 0.192 W/m·K |
| Specific Heat Capacity (Cp) | 2170 J/kg·K |
| Glass Transition Temperature (Tg) | -50 °C |
| Electrical Properties | Metric |
| Relative Permittivity (@1 MHz) (εr) | 2.0 - 6.3 |
| Electrical Resistivity | 1011 Ω·cm |
Unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)
Related Pages
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) A.M. Howatson, P.G. Lun, J.D. Todd, P.D. Engineering Tables and Data. United Kingdom: University of Oxford, Department of Engineering Science, 2009.