Nitrile (Buna-N)

Nitrile's resistance to the more aromatic distillates of petroleum is better than neoprene, and it exhibits excellent resistance to mineral and vegetable oils, but relatively poor resistance to the swelling action of oxygenated solvents such as acetone and the ketones. Resistance to heat aging is good.

Nitrile exhibits good resilience, low permanent set, good abrasion resistance and some ozone resistance. Tear resistance is inferior to natural rubber.

Nitrile accommodates applications where oils and heat are prevalent.