Nitrile Butadiene Rubber (Nitrile Rubber)

ASTM Designation: NBR

Standard Colour: Black

Description: This rubber is also known as Buna-N. This is most widely used rubber in oil-resistant applications, with moderate temperature range.

Chemical Structure:
Nitrile Butadiene Rubber (Nitrile Rubber) Structure

Standard operating temperature Range: -50 OC to +100 OC

Hardness Range: 40 – 90 Shore A

  • Excellent oil resistance
  • Good physical properties.
  • Properties vary based on the monomer content in this co-polymer.
  • Good dynamic properties
  • Good low temperature properties
  • Oil resistance applications, in the moderate temperature range such as seals, gaskets, O-rings, bellows, hose,
  • General purpose mouldings, extrusions, seals, gaskets, hoses, profiles, roll, belts, bearings, lining, rubberized fabric, shoe soling etc.
  • Rubber rollers for various applications.
  • Automotive Engine applications

Carboxylated NBR (XNBR) is used for applications requiring enhanced abrasion resistance