Material
Polychloroprene (CR / Neoprene)
CR's chief characteristic is flame retardency along with excellent ageing properties in ozone and weathering, combined with resistance to abrasion and flex fatigue.
CR (Neoprene) O-rings — balanced chemical and weather resistance.
Applications
Where it's used
Bonded seals, weather-exposed static seals, refrigerant systems.
Related
Also see
Material
NBR (Nitrile / Buna-N)
NBR is the workhorse elastomer of the sealing industry — a copolymer of butadiene and acrylonitrile whose acry…
View details →Material
FKM / FPM (Fluoroelastomer)
FKM (often referenced by the trade name Viton) is a fluorine-containing elastomer built for aggressive chemica…
View details →Material
EPDM
EPDM's saturated backbone gives outstanding resistance to ozone ageing, UV and weathering along with strong pe…
View details →Properties
Key advantages of CR (Neoprene)
- Balanced resistance to oils, ozone, weathering and moderate chemicals
- Temperature range from -35°C to +120°C
- Good flame resistance (self-extinguishing) — often specified for fire safety
- Moderate oil and fuel resistance — better than EPDM but below FKM
- Good adhesion to metals — used in bonded seal applications
Neoprene was the first commercially successful synthetic rubber and remains a versatile general-purpose elastomer. FITCO supplies CR O-rings and gaskets for refrigeration (R-12, R-22, R-134a), marine, mining and general industrial sealing applications.