| NBR o ring cord NBR Nitrile rubber, also known as Buna-N, Perbunan, acrylonitrile butadiene rubber, and NBR, is a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene. The raw material is Black/Yellow dotted in color.[clarification needed] Its elongation after fracture is 300% and possesses a tensile strength of 10 N/mm. NBR has good resistance to mineral oils, vegetable oils, benzene/petrol, ordinary diluted acids and alkaline. It is used in the automotive and aeronautical industry to make fuel and oil handling hoses, seals, and grommets, since ordinary rubbers cannot be used. It is used in the nuclear industry to make protective gloves. NBR's ability to withstand a range of temperatures from 40 to 108 C (40 to 226 F) makes it an ideal material for aeronautical applications. |
