Permobond® RS-2245 Nitrile Rubber is a proprietary Nitrile/Natural rubber blend(MOR – Moderate Oil Resistance). This is a polar-type lining used where there may be exposure to aliphatic hydrocarbons in a service condition. With the blend of Natural Rubber has excellent physical properties, such as tensile strength, abrasion resistance, and elongation. RS-2245 is flexible and will expand and contract with thermal variations of the metal substrate.