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Product groups
Nitrile butadiene rubber
Short designation NBR
Brand name Perbunan®
Buna N®
Chemical description Nitrile butadiene rubber
Mechanical properties  
  Hardness range [Shore A/D] 40 – 90
  Wear resistance Good – very good
  Tensile strength [MPa] 10 – 25
Physical properties  
  Density [g/cm³] 1.4
Application temperatures  
 Temperature range, short-term [°C] -40 – 120
 Temperature range, continuous [°C] -30 – 100
Other properties  
  Flammability according to UL 94 Burns (still HB)
Chemical resistance  
  Mineral grease and oils ++
  Petrol ++
  Weak/strong acids o/--
  Weak/strong alkalis +/-
  Perchloroethylene -
  Trichloroethylene --
  Acetone --
  Alcohols +
  Brake fluid -
  Hydrolysis resistance
  (hot water)
+
  Weather/UV radiation o
This information is for reference only; we do not assume any liability for its accuracy. The properties of elastomer materials are highly dependent on their specific composition and their additives.

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