Generally To: Resistant Generally Cold Affected Or

1 Comparative Properties Of Typical Proco Products, Inc. ElastomersANSI/ASTM D1418-77 CIIREPDMCSMCRNBRNR/IRElastomer Common NameChlorobutylEPDM/EPTH ypalonNeopreneNitrile/Buna-NGum/NaturalA STM D-2000; SAE J-200 Military: MIL STD 417 Proco's CodeAA-BARSB*D*OBA-CA-DARSE*QCESCHBC-BES CF*NBF-BG--BK-CHSBJ*PAARNG*RChemical NameDefinitionChloro-IsobutyleneIsoprene Ethylene PropylenePolymerChlor-SulfonatedPolyethy lenePoly-ChlorpreneButadieneAcro-Nitrile PolyisopreneHardness Range: Duro ASpecific Gravity Of BaseLow Min Service FHigh Temp. -Max. Service to -60250 to to to to +30 to to -60185 AbrasionAbsorption, WaterAcid - ConcentratedAcid - DiluteAdhesion to FabricsGoodVery GoodGoodExcellentGoodGood To To ExcelExcellentExcellentGoodExcellentVery GoodVery GoodExcellentGoodExcellentGoodGoodExcell entExcellentGoodGoodGoodGoodGoodExcellen tVery GoodFair To GoodFair To GoodExcellentAdhesion To MetalsChemicalsColdDielectric StrengthDynamic PropertiesGoodExcellentGoodExcellentFair Good To to To To GoodGoodGoodFairExcellentFair To GoodFair To GoodPoorGood To To GoodExcellentExcellentExcellentElectrica l InsulationFlameHeatHeat AgingHydrocarbons-AliphaticGood To GoodVery GoodPoorExcellentPoorExcellentExcellentP oorGoodGoodExcellentVery GoodFair To GoodFair To GoodGoodVery GoodGoodFair To GoodPoorPoorGoodGoodExcellentGood To - AromaticHydrocarbons - OxygenatedImpermeabilityOil - Animal & VegetableOil And GasolinePoorGoodVery LowVery GoodPoorPoorGood To LowGoodPoorFairPoor To FairLow To Very LowGoodGoodFairPoorLowGoodGoodGoodPoorLo wVery GoodExcellentPoorFair To GoodFairly

2 LowPoor To GoodPoorOxidationOzoneRadiationRebound - ColdRebound - HotExcellentExcellentGoodPoorVery GoodExcellentOutstandingOutstandingVery GoodVery GoodExcellentOutstandingVery GoodFair To To To GoodVery GoodVery GoodGoodFairVery GoodGoodGoodGoodPoor To FairExcellentExcellentExcellentSet, CompressionSolvents, LacquerSteamSunlight AgingSwelling In OilFairFair To GoodGoodVery GoodPoorGoodPoor To FairExcellentOutstandingPoorFairPoorFair OutstandingGood To To GoodPoorFairVery GoodGoodGoodFairFair To GoodPoorVery GoodGoodPoorFair To GoodPoorPoorTearTensile StrengthWaterWeatherGoodGoodGoodGood To To GoodGood To To To GoodFairGood To To GoodFairGenerallyResistantTo:Animal And Veg. Oils, Fats,Greases, Air, Gas, Water,Many Oxidizing Chemicals,And OzoneVegetable And Animal Fats,Oils, Ozone, Many Strong Andoxidizing Chemicals, Ketones,Alcohol'sStrong Acids and Bases,Freons, Hydroxides, Ozone,Alcohol's, Etching, Alkalineand Hypochlorite Acids and Chemicals,Ozone, Oils, Fats, and Manysolvents.

3 Oily Abrasive Hydrocarbons, Fats,Oils Greases, HydraulicFluids, Chemicals andSolventsWater, Air, Average Concentra-tion Acids, Bases, Alcohol's,Salts, Ketones, Best OrAttacked By:Not For: Oils, Solvents, andAromatic For: Mineral Oils, Sol-vents, and Aromatic For: Ketones, Esters, andCertain Chlorinated OxidizingAcids. Chlorinated, Nitro andAromatic HydrocarbonsNot For: Oxidizing Acids, Estersand Ketones, Aromatic, Chlo-rinated and Nitro For: Ozone, Ketones,Esters, Aldehydes, Nitro andChlorinated, Hydrocarbons,Polar Solvents, For: Ozone, Strong Acids,Bases, Oils Solvents, Most Hy-drocarbons