CR - Polychloroprene (CR; aka Neoprene)
Clwyd reference | CR |
ASTM classification | CR |
Polychloroprene (CR; aka Neoprene) has good all-round properties, resists degradation from sun, ozone and weather. Typical applications include wetsuits and professional diving suits, gloves, refrigeration seals, gaskets, hoses and car fan belts. | |
Typical applications | Wetsuits and professional diving suits, gloves, refrigeration seals, gaskets, hoses and car fan belts. |
Advantages |
|
Disadvantages |
|
Available hardness range (Shore A) | 35 - 95 |
Upper continuous service temp. | 100°C |
Min. temp. for sealing applications | -40°C |
Minimum non-brittle temp. | -50°C |
Tensile strength (up to) | 23 MPa |
Elongation at break (up to) | 450% |
Price Bracket | Very low |
ASTM 1 Oil | Excellent |
ASTM 2 Oil | Good |
ASTM 3 Oil | Good |
Kerosene | Good |
Liquid B | None |
Liquid 101 | None |
Phosphate ester | None |
Ketone | Average |
Toluene | None |
Iso-octane | Average |
Methanol | Excellent |
Acid (weak) | Good |
Acid (strong) | None |
Base (weak) | Good |
Base (strong) | Average |
Hydrogen sulphide | Average |
Steam | Average |
Ozone | Good |
Radiation | Good |