General Chemical Resistance Guide - WARCO

1 America's choice for quality rubber. Resistance GUIDEyThe General Chemical Resistance Of Various ElastomersThis chart is offered as a General Guide , including the suitability of various elastomers for service in these chemicals and ratings are based for the most part, on published literature of various polymer suppliers, rubber manufacturers, and in some cases, the considered opinion of experienced compounders. We cannot guarantee their accuracy nor assume responsibilit for use thereof. Many factors must be considered in using a rubber part in service.

2 The most important as we see them temperature of Service: Higher temperatures increase the affect of all chemicals on polymers. The increase varies with the polymer and the Chemical . A compound quite suitable at room temperature might fail miserably at elevateed of Service: A compound that swells badly might still function as a static seal yet fail in any dynamic Grade of the Polymer: Many types of polymers are available in different grades that vary greatly in Chemical Compound Itself: Compounds designed for other outstanding properties may be poorer in performance in a Chemical than one designd especially for fluid Durometer.

3 In General , the harder a compound the better its light of the above factors, it is always best to Purpose Non-Oil ResistantGeneral Purpose - Oil ResistantSpecialty ElastomersFluid ChartKey (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)( 13)(14)Typical WARCOCmpd NameNatual RubberSBR or BUNA-SButylEPDM or EPRubberNitrile, NBRor BUNA-NEpichloro-hydrinNeopreneHypalon UrethanePolysulfideSilicone FluoroSiliconeFluoroCarbonPolyacrylateAS TM D 1418 NRSBRIIREPDM, EPMNBRCO, ECOCRCSMAU, EUTVMQFVMQFKMACMD esignationChemical NamePolyisopreneStyreneButadieneIsobutyl leneIsopreneEthylenePropylenCopolymerAcr ylonitrile ButadieneEpichloro-HydrinChloropreneChlo rosulfo-natedPolyethylenePolyeter.

4 OrPolyetherUrethanePolysulfidePolydimeth yl-SiloxaneFluorovinylMethylSiloxaneFluo rinatedHydrocarbonCopolymer ofEthyl and ButylAcrylateGenerally Resistant ToMost ModerateChemicals Wet or Dry, Organic Acids, AlcoholsKetones AldehydesSimilar toNatural RubberAnimal andVegetableFats, Oils,Greases, Ozone, Strong and Oxidizing ChemicalsAnimal and VegetableOils, Ozone,Strong and Oxidising ChemicalsMany Hydrocarbons,Fats, Oils,Greases, Hydraulic Fluids, ChemicalsSimilar toNitrile with OzoneResistanceModerateChemicals and Acids, Ozone, Oils, Fats, Greases, Many Oilsand SolventsSilimar toNeoprenewith ImprovedAcid ResistanceOzones,Hydrocarbons,ModerateCh emicals,Fats, Oils,GreasesOzone, Oils,Solvents, Thinners,Ketones, Esters,AromaticHydrocarbonsModerate or Oxidising Chemicals,Ozone, concentratedSodiumHydroxideModerate or OxidizingChemicals, Ozone, Aromatic ChloronatedSolvents, BasesAll Aliphatic,Aromatic andHalogenatedHydrocarbons, Acids, Animal andVegetable OilsOzone, Extreme Pressure, Lubricants,Hot Oils,Petroliums Solvents.

5 Animal and Vegetable FatsGenerallyAttacked By Ozone, StrongAcids, Fats, Oils Greases, MostHydrocarbonsSimilar toNatural RubberPetrolium Solvents, CoalTar Solvents,Aromatic HydrocarbonsMineral Oilsand Solvents,AromaticHydrocarbonsOzone*Keton es, Esters,Aldehydes, Chlorinated and Nitro HydrocarbonsKetones,Esters, Aldehydes,Chlorinatedand NitroHydrocarbonsStrong OxidizingAcids, Esters,Ketones,Choloronated,Aromatic and Nitro HydrocarbonsConcentratedOxidizing Acids, Esters,Ketones,ChlorinatedAromatic and Nitro HydrocarbonsConcentrated Acids, Esters,Ketones,Chlorinatedand Nitro HydrocarbonsMercaptans,ChloronatedHydroc arbons,NitroHydrocarbons,Ethers, Amines,HetercocyclicsMany SolventsOils, ContentratedAcids, Dilute Sodium HydroxideBrake FluidsHydrazine KetonesKetones, Low Mole Weight, Ester and Nitro ContainingCompoundsWater, Alcohols,Glycols, Alkali, Esters, AromaticHydrocarbons, HalogenatedHydrocarbons,Phenol*Except PVC Blends Chemical Resistance GuideChemical Effect Rating.

6 A - Recommended - Little or minor effectB - Minor to moderate effect - Rubber parts probably still useful in many applicationsC - Moderate to severe effect - Rubber parts perhaps still useful in limited applicationsU- Not recommendedBlank - No data or insufficient evidence - It should be noted that it is not expected that a polymer unrated would perform better than those that are Resistance Key(1)NRIR(2)SBRBR(3)IIR(4)EPMEPDM(5)NBR (6)COECO(7)CR(8)CSM(9)AUEU(10)T(11)Si(12 )FSi(13)FKM(14)ACMA cetaldehydeCUAAUCCUCAUU UAcetamideCCAAABBUUBAB UAcetic Acid, GlacialBCBACUCCUBBCC UAcetic Acid.

7 30%BBBABBAACBABB UAcetic AnhydrideBBBBCUAAUBCUU UAcetoneBBAAUUBBUCBUU UAcetophenoneCUAAUUUUUUUU UAcetyl ChlorideUUAAA cetyleneBBAABBBCBAA crylonitrileUCUUUCCUUUUA dipic AcidAAAlkazeneUUBBBAlum-NH3-Cr-KAAAAAAAA UA luminum AcetateABAABBBAUUUUA luminum ChlorideAAAAAAAAUBAA AAluminum FluorideBAAAAAAAUBAAA luminum NitrateAAAAAAAABA luminum PhosphateAAAAAAAAAAA luminum SulfateABAAAAAUAAA UAmmonia AnhydrousAAAAABCUUA mmonia Gas (Cold)AAAAAAAAAAA mmonia Gas (Hot)BBBBUAUUA mmonium CarbonateAAAAUBAA mmonium ChlorideAAAAAAAAAA mmonium HydorxideUUAAUBAAAUABB UAmmonium NitrateCAAAAABAUAA mmonium NitriteAAAAAAABA mmonium PersulfateAUAAUAAUUA mmonium PhosphateBAAAAAAAAA mmonium SulfateABAAAAAUUAmyl AcetateBCAAUUUUUUUUU UAmyl AlcoholBBAABAAAUBUAB UAmyl BorateUUUUAAAAAAmyl ChloronapthaleneUUUUUUUCUBA UAmyl NapthaleneUUUUUUUUCUAA BAnilineUUBBUUCCUCCC UAniline DyesBBBBUBBUBBB UAniline HydrochlorideBCBBBUUUBUBB UAnimal FatsUUBBAABBAUBAA AAnsul EtherUUCCCUUBAUCU UAqua RegiaUUUCUCCBA rochlor(s)

8 UUCCCUUBBA UArsenic AcidBAAAAAAACAAAA CArsenic TrichlorideAAAskarelUUUUBUUUUUBA UAsphaltUUUUBACCBAUBA BBarium ChlorideAAAAAAAAAAAAA ABarium HydroxideAAAAAAAAAAAAA UBarium SulfateAAAAAAAAAAAAAB arium SulfideABAAAAAAABAAA UBeerAAAAAAAAUAAA UBeet Sugar LiquorsAAAAAAAUAAA UBenzeneUUUUUUUUUCUAA UBenzenesulfonic AcidAABAB enzaldehydeUAAUUUUUUUUU UBenzyl AlcoholBBUUABBAB enzyl BenzoateBBAAB enzyl ChlorideUUAAB enzoic AcidBBAB last Furnace GasUUUUABAB leach SolutionsUUAACABBAB oraxBBAABAAABBA BBordeaux MixtureBBAAAABBAB oric AcidAAAAAAAAAUAAA UBrineAAAAAB romine - AnhydrousUUBCBAB romine TrifluorideUUUUUUUUUUUUU UBromine WaterBABBAB romobenzeneUUUUUUUUUCUAA UImportant Note: The Chemical Resistance information presented has been compiled and edited by the TLARGI Committee.

9 No warranty is expressed or implied. For specific information please call West American Rubber Co., LLC Chemical Resistance GuideChemical Effect Rating:A - Recommended - Little or minor effectB - Minor to moderate effect - Rubber parts probably still useful in many applicationsC - Moderate to severe effect - Rubber parts perhaps still useful in limited applicationsU- Not recommendedBlank - No data or insufficient evidence - It should be noted that it is not expected that a polymer unrated would perform better than those that are Resistance Key(1)NRIR(2)SBRBR(3)IIR(4)EPMEPDM(5)NBR (6)COECO(7)CR(8)CSM(9)AUEU(10)T(11)Si(12 )FSi(13)FKM(14)ACMI mportant Note.

10 The Chemical Resistance information presented has been compiled and edited by the TLARGI Committee. No warranty is expressed or implied. For specific information please call West American Rubber Co., LLCB unker Oil ABABAA AButadieneUUCCUUBBUBBB utaneUUUUAAAAAAAA AButterUUBAAABBAUAAA AButyl AcetateBBUUUCUUU UButyl Acetyl RicinoleateAABBBAB utyl AcrylateUUUBUB utyl AlcoholAABBAAAUBBAA UButyl AmineUUUUCUUUUBUU UButyl BenzoateAAUUAAB utyl CarbitolAAABBAB utyl CellosolveAACBBUUB utyl OleateUUBBUUBAB utyl StearateUUBBBABAB utyleneUUUUBCCBBAB utyraldehydeCCBBCCCBCUU UCalcium AcetateAAABBBUUC alcium BisulfiteUUUUAAAAUAAAC alcium ChlorideAAAAAAAAAAAAA ACalcium HydroxideAAAAAAAAAUAAA UCalcium HypochloriteUUAACBCABAAC alcium