Buna-N Components

Nitrile (Buna-N) is a general purpose oil resistant polymer which has good solvent, oil, water and hydraulic fluid resistance, good compression set, abrasion resistance and tensile strength. Nitrile should not be used in highly polar solvents such as acetone, and MEK, ozone, chlorinated hydrocarbons and nitro hydrocarbons

Minor Rubber offers a wide range of BUNA-N products, including:

Characteristics of BUNA-N:
  • Common Name:  Buna-N, Nitrile, NBR
  • ASTM D2000 Classification: BF, BG, BK
  • Military (MIL-STD 417): SB
  • Chemical Definition: Butadiene Acrylonitrile

General Characteristics

  • Durometer Range: 20 – 95
  • Tensile Range (P.S.I.): 200 – 3000
  • Elongation (Max. %): 600
  • Compression Set: Good
  • Resilience – Rebound: Good
  • Abrasion Resistance: Excellent
  • Tear Resistance: Good
  • Solvent Resistance: Good to Excellent
  • Oil Resistance: Good to Excellent
  • Low Temperature Usage: 30° to -40°
  • High Temperature Usage: up to 250°
  • Aging Weather – Sunlight: Poor
  • Adhesion to Metals: Good to Excellent

For more information about Buna-N products, contact Minor Rubber today!