CR or Neoprene® Polychloroprene
- Abbreviation: CR
- ASTM D-2000 Classification: BC, BE
- Chemical Definition: Polychloroprene
Physical & Mechanical Properties
- Durometer or Hardness Range: 20 – 95 Shore A
- Tensile Strength Range: 500 – 3,000 PSI
- Elongation (Range %): 100% – 800%
- Abrasion Resistance: Very Good to Excellent
- Adhesion to Metal: Excellent
- Adhesion to Rigid Materials: Good to Excellent
- Compression Set: Poor to Good
- Flex Cracking Resistance: Good
- Impact Resistance: Good to Excellent
- Resilience / Rebound: Fair to Good
- Tear Resistance: Good to Excellent
- Vibration Dampening: Good to Excellent
Chemical Resistance
- Acids, Dilute: Excellent
- Acids, Concentrated: Poor
- Acids, Organic (Dilute): Good to Excellent
- Acids, Organic (Concentrated): Poor to Good
- Acids, Inorganic: Good to Excellent
- Alcohol’s: Excellent
- Aldehydes: Poor to Fair
- Alkalies, Dilute: Good
- Alkalies, Concentrated: Poor
- Amines: Poor to Good
- Animal & Vegetable Oils: Good
- Brake Fluids, Non-Petroleum Based: Fair
- Diester Oils: Poor
- Esters, Alkyl Phosphate: Poor
- Esters, Aryl Phosphate: Poor to Fair
- Ethers: Poor
- Fuel, Aliphatic Hydrocarbon: Poor to Good
- Fuel, Aromatic Hydrocarbon: Poor to Fair
- Fuel, Extended (Oxygenated): Fair
- Halogenated Solvents: Poor
- Hydrocarbon, Halogenated: Poor
- Ketones: Poor to Fair
- Lacquer Solvents: Poor
- LP Gases & Fuel Oils: Good
- Mineral Oils: Fair to Good
- Oil Resistance: Fair
- Petroleum Aromatic: Good
- Petroleum Non-Aromatic: Good
- Refrigerant Ammonia: Excellent
- Refrigerant Halofluorocarbons: R-11, R-12, R-13, R-21, R-22
- Refrigerant Halofluorocarbons w/ Oil: R-11, R-12, R-22
- Silicone Oil: Fair to Excellent
- Solvent Resistance: Fair
Thermal Properties
- Low Temperature Range: -70º F to -30º F
- Minimum for Continuous Use (Static): -80º F
- Brittle Point: -85º F
- High Temperature Range: +200º F to +250º
- Maximum for Continuous Use (Static): +250º F
Environmental Performance
- Colorability: Fair
- Flame Resistance: Fair to Good
- Gas Permeability: Fair to Good
- Odor: Fair to Good
- Ozone Resistance: Good to Excellent
- Oxidation Resistance: Good to Excellent
- Radiation Resistance: Fair to Good
- Steam Resistance: Fair to Good
- Sunlight Resistance: Good to Excellent
- Taste Retention: Fair to Good
- Weather Resistance: Fair to Good
- Water Resistance: Fair to Good
For assistance in identifying the appropriate polymer or material, or to develop and formulate a CR or Neoprene / polychloroprene rubber compound to meet your specific application and performance requirements, please contact Rahco Rubber, Inc. at sales@rahco-rubber.com or 847-298-4200.
Rahco Rubber, Inc. makes no expressed or implied warranty as to any qualities, attributes, or characteristics of any polymer or material. This information is provided for reference only. Neoprene® is a registered trademark of the DuPont Corporation.