NBR rubber

NBR is a copolymer of butadiene and acrylonitrile, and the acrylonitrile content can vary between 18% and 50% depending on the application. The lower acrylonitrile content improves flexibility at low temperatures but reduces resistance to oils and fuels. Conversely, a higher acrylonitrile content increases resistance to oils and fuels but limits low temperature flexibility and increases compression stability. Our standard NBR materials have a balanced acrylonitrile content of approximately 30%.

NBR offers good resistance to:

• Mineral oil-based oils and lubricants
• Aliphatic hydrocarbons
• Vegetable and animal oils and fats
• Hydraulic oils H, H-L, H-LP
• Hydraulic fluids HFA, HFB, HFC
• Silicone oils and lubricants
• Water (max. 80°C)

NBR is not resistant to:

• Fuels with high aromatic content
• Aromatic hydrocarbons
• Chlorinated hydrocarbons
• Non-polar solvents
• Hydraulic fluids HFD
• Glycol-based brake fluids
• Ozone, weathering, aging, UV

Temperature range of use: Standard types: -30°C to +100°C (short term up to +120°C) Special grades: up to -50°