CHLOROPRENE RUBBER
| DESCRIPTION |
| Introduced in 1931, chloroprene (or "neoprene") is one of the oldest synthetic elastomers. Due to its ability to resist both oils and oxidation, it is used in a variety of applications. However, its oil resistance depends significantly on the type of oil. Chloroprene has good resistance to napthenic and paffaffinc oils of high molecular weight, however, it swells excessively in aromatic oils of low molecular weight. Vulcanizates of chloroprene demonstrate minimal significant change after prolonged outdoor exposure. Due to the chlorine content, chloroprene's flame resistance is superior to most other rubbers. Some chloroprene vulcanizates, particularly O-Rings, occasionally exhibit distortion due to crystallization of the rubber at room temperature. This effect can be completely reversed by warming the parts in low heat. Chloroprene is especially well suited for rubber-to-metal bonding. |
| COMPOSITION |
| Produced from the chloroprene monomer, a combination of cholorine and butadiene. Medium Density. |
| PHYSICAL PROPERTIES* | Excellent | Good | Fair | Poor |
| Abrasion resistance | • | |||
| Compression Set | • | |||
| Elongation | • | |||
| Flame resistance | • | |||
| Gas permeability | • | |||
| Low temperature flexibility | • | |||
| Tear resistance | • | |||
| Tensile strength | • |
| CHEMICAL RESISTANCE* | Excellent | Good | Fair | Poor |
| Automotive refrigerants | • | |||
| Dilute acids | • | |||
| Dilute alkalis | • | |||
| Ozone | • | |||
| Steam | • | |||
| Water | • | |||
| Weather | • |
| OPERATING TEMPERATURE |
| -40 to 225 °F |
*Excellent, good, fair and poor serve as general guidelines only. Actual testing in the application environment is always recommended.
