Chloroprene Rubber (CR), widely known as Neoprene®, was one of the first oil resistant synthetic rubbers. It is a good general purpose rubber with an excellent balance of physical and chemical properties.
- However, it has only moderate resistance to petroleum based oils and fuels.
- It has better chemical, oil, ozone and heat resistance than natural rubber but a rather lower level of physical properties.
- Chloroprene tends to slowly absorb water and its electrical properties are poor.
- Its gas permeability is fairly low and flame resistance is excellent, chloroprene being one of the few rubbers that are self-extinguishing.
- Gives excellent rubber-metal bonds and good resilience.
- Certain grades of Neoprene may crystallise and harden during storage although they will thaw on heating.
- Chloroprene is widely used because of its wide range of useful properties and reasonable price.
- Typical applications include belting, coated fabrics, cable jackets, seals and gaiters.
- Typical working temperature range: -35°C to +100°C
Neoprene® is a registered trademark of DuPont Performance Elastomers.