Properties of Neoprene (CPR)
Neoprene (CPR) is a versatile synthetic elastomer prized for its resilience, flexibility, and resistance to oils, chemicals, heat, and environmental degradation. It is widely used in applications such as wetsuits, automotive parts, and protective gear.
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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).
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| 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)
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.