Neoprene Polychloroprene (CR)

Abbreviation:

CR

ASTM D-2000 Classification:

BC, BE

Chemical Definition:

Polychloroprene

 

Physical & Mechanical Properties

  • Durometer or Hardness 20 - 95 Shore A
  • Tensile Strength 500 - 3000 PSI
  • Elongation % 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

Thermal Properties

  • Low Temperature -70° F to -30° F
  • Minimum for Continuous Use (static) -80° F
  • Brittle Point -80° F
  • High Temperature +200° F to 250° F
  • Maximum for Continuous Use (static) +250° 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

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
  • Alcohols 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
  • Esters 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 with Oil R-11, R-12, R-22
  • Silicone Oil Fair to Excellent
  • Solvent Resistance Fair

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