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ïż½rarrrxrrar! lz <br /> Materials Compatibility <br /> Parker O-Ring Handbook2 Wilden Chemical Resistance Guide3 <br /> Compatibility of Various Elastomers to Methyl Compatibility of Various Elastomers, Metals <br /> Oleate and Plastics to Methyl Oleate <br /> CompoundCompound <br /> Compatibility Compatibility <br /> Elastomer Rating Material Rating <br /> Nitrile NBR 4 Elastomers <br /> Hydrogenated Nitrile HNBR 4 Wil-Flex C <br /> II Ethylene Propylene EPDM 2 Polyurethane - <br /> i <br /> Fluorocarbon FKM 1 Neoprene D <br /> Hifluor FKM 1 Buna-N D <br /> Perfluoroelastomer FFKM 1 Nordel C <br /> Aflas (TFE/Propylene] FEPM X Won B <br /> Neoprene/Chloroprene CR 4 Teflon A <br /> Styrene-Butadiene SBR 4 Saniflex TPE - <br /> Polyacrylate ACM X <br /> Polyurethane AU,EU X Metals <br /> Butyl [IR 2 Aluminum - <br /> Butadiene BR 4 Cast Iron - <br /> Isoprene IR X Stainless Steel (316) - <br /> Natural Rubber NR 4 Hastelloy - <br /> Hypalon CSM 4 Halar ECTFE Coated - <br /> Fluorosilicone FVMQ 2 <br /> Silicone MQ, VMQ, PVMQ X Plastics <br /> Nylon - <br /> Compatibility Rating Carbon-Filled Acetal (CFA) A <br /> 1 -Satisfactory Polypropylene - <br /> 2- Fair (usually OK for static seal) Polyethylene <br /> 3- Doubtful (sometimes OK for static sea]) PVDF - <br /> 4- Unsatisfactory <br /> X- Insufficient Data Compatibility Ratings: <br /> A -Minor Effect <br /> B- Minor to Moderate Effect <br /> C - Moderate to Severe Effect <br /> D- Not Recommended <br /> -- Insufficient Information <br /> I <br /> 1 <br /> 2 Parker O-Ring Handbook, Parker Hannifin ' Chemical Resistance Guide, Wilden Pump & <br /> Corporation, O-Ring Division, Lexington, KY, Engineering Co., Grand Terrace, CA, May <br /> 2001. 2003. <br /> 3 <br />