Terminology - N

  • NATURAL RUBBER: Natural Rubber, also known as Polyisoprene, has very good tear strength and tensile, as well as good abrasion resistance and stiffness range. This compound has good low-temperature flexibility and excellent resistance to cold flow. While natural rubber is not naturally ozone resistant, additives can be added to improve ozone resistance
  • NEOPRENE: See Chloroprene.
  • NITRILE (NBR): Nitrile Butadiene Rubber (NBR) is a copolymer of butadiene and acrylonitrile. It is known for having excellent resistance to petroleum oils and gasoline, as well as excellent resistance to mineral and vegetable oils. However, it has poor resistance to the swelling action of oxygenated solvents such as acetone, methyl ethyl ketone, and other ketones.