Permobond® RS-0575 Black Neoprene® (CR) Rubber a high polymer content designed specifically for the Oilsands. The permeation resistance of the mineral, vegetable, and animal oils is also better than all other CR linings. RS-0575 has good resistance to paraffinic and naphthenic oils of higher molecular weight but swell extensively in aromatic oils of low molecular weight. RS-0575 has been fortified with the addition of higher levels of filler loading we have improved the crosslink giving it exceptional resistance to oils, abrasion, and swelling in aqueous solutions and slurries.