Closed cell NBR foam
The main feature of nitrile sponge rubber NBR is its high resistance to several chemical agents, such as animal and vegetable oils, grease, solvents and aliphatic hydrocarbons, LNG and LPG gases, water and saline solutions.
It also has good mechanical properties, aging and UV rays resistance and it can be used as a thermal insulator. It withstands low temperatures quite well but not high temperatures or flames.