Exonic Polymers is a leading manufacturer of custom Neoprene (CR) rubber profiles. Neoprene Rubber is a synthetic rubber elastomer. It exhibits outstanding water resilience, pill-resistant, abrasion resistance and excellent adhesion to metal. Neoprene rubber is often used for applications in environments with moderate chemicals and wet or dry organic acids. It displays excellent flame resistances that it is one of the few rubbers that are self-extinguishing.

Neoprene (CR) Rubber Advantages & Benefits

  • Outstanding physical toughness
  • Resistance to heat and hydrocarbon oils
  • Outstanding resistance to damage caused by twisting and flexing
  • Better flame retardant/self-extinguishing characteristics than exclusively hydrocarbon-based elastomers
  • Wider short and long-term operating temperature range than other general-purpose hydrocarbon elastomers
  • Resistance to the degradation effects of sun, ozone and weather

Neoprene (CR) Rubber Properties

Common Name: CR, Neoprene, NR, Chloroprene

ASTM D2000 Classification: AA,BA - Military (MIL-STD 417: RS)

Chemical Definition: Neoprene

Specific Gravity: 1.23

Temperature Range

Low Temperature Usage: -10° to -50° F

High Temperature Usage: Up to 225° F

Tensile Strength

Tensile Range: 500-3000 P.S.I. - Very Good

Elongation: 600% Maximum - Good

Durometer (Hardness)

Range: 40-95 Shore A

Resilience/ Rebound: Very Good

Abrasion Resistance: Good

Tear Resistance: Fair - Good

Compression Set: Fair - Good

Additional Properties

Aging Weather: Fair

Adhesion to Metals: Excellent

Solvent Resistance: Fair

Oil Resistance: Fair

Heat Resistance: Good

Flame Resistance: Excellent

Common Neoprene (CR) Applications


  • Conveyer belts
  • Neoprene industrial hose
  • Neoprene O rings
  • Neoprene Diaphragms
  • Grommets and vibration mounds

Wire & Cabling

  • Cable jackets
  • Jacketing in lead press cured mining cables
  • Jacketing in heavy-duty cables


  • Neoprene window seals
  • Custom window gaskets
  • Highway and bridge seals
  • Bridge bearing pads
  • Neoprene washers
  • Bridge stay-cable anchor components
  • Deviator pads
  • Neoprene O Ring
  • Elevator astragals