General Chemical Resistance Guide

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CHEMICAL RESISTANCE GUIDE

America's choice for quality rubber. TM The General Chemical Resistance Of Various Elastomers

This chart is offered as a general guide, including the suitability of various elastomers for service in these chemicals and fluids.The 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 responsibility for use thereof. Many factors must be considered in using a rubber part in service. The most important as we see them are:

1. The 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 temperature. 2. Conditions of Service : A compound that swells badly might still function as a static seal yet fail in any dynamic application. 3. The Grade of the Polymer: Many types of polymers are available in different grades that vary greatly in chemical resistance. 4. The Compound Itself : Compounds designed for other outstanding properties may be poorer in performance in a chemical than one designd especially for fluid resistance. 5. The Durometer : In general, the harder a compound the better its resistance.

In light of the above factors, it is always best to test.

General Purpose Non-Oil Resistant General Purpose - Oil Resistant Specialty Elastomers Fluid Chart Key (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14)

Typical WARCO 40-R-149 60-A-128 60-T-56 60-K-20 60-P-187 60-D-3 60-E-306 60-H-17 60-S-563 60-S-802 75-F-81 60-D-16 Cmpd No.

Common Natual Rubber SBR or Butyl EPDM or EP Nitrile, NBR Epichloro- Neoprene Hypalon Urethane Polysulfide Silicone Fluoro Fluoro Polyacrylate Name BUNA-S Rubber or BUNA-N hydrin Silicone Carbon

ASTM D 1418 NR SBR IIR EPDM, EPM NBR CO, ECO CR CSM AU, EU T VMQ FVMQ FKM ACM

Designation Polyisoprene Styrene Isobutyllene Ethylene Acrylonitrile Epichloro- Chloroprene Chlorosulfo- Polyeter, or Polysulfide Polydimethyl- Fluorovinyl Fluorinated Copolymer of Chemical Butadiene Isoprene Propylen Butadiene Hydrin nated Polyether Siloxane Methyl Hydrocarbon Ethyl and Butyl Name Copolymer Polyethylene Urethane Siloxane Acrylate

Moderate or Ozone, Extreme Generally Similar to Animal and Many Similar to Moderate Silimar to Ozones, Ozone, Oils, Oxidising Moderate or All Aliphatic, Pressure, Resistant To Most Moderate Natural Vegetable Animal and Hydrocarbons, Nitrile with Chemicals and Neoprene Hydrocarbons, Solvents, Chemicals, Oxidizing Aromatic and Lubricants, Chemicals Wet Rubber Fats, Oils, Vegetable Fats, Oils, Ozone Acids, Ozone, with Improved Moderate Thinners, Ozone, Chemicals, Halogenated Hot Oils, or Dry, Organic Greases, Oils, Ozone, Greases, Resistance Oils, Fats, Acid Chemicals, Ketones, concentrate Ozone, Hydrocarbons, Petroliums Acids, Alcohols Ozone, Strong Strong and Hydraulic Greases, Resistance Fats, Oils, Esters, d Aromatic Acids, Animal Solvents, Ketones and Oxidizing Oxidising Fluids, Many Oils Greases Aromatic Sodium Chloronated and Animal and Aldehydes Chemicals Chemicals Chemicals and Solvents Hydrocarbons Hydroxide Solvents, Bases Vegetable Oils Vegetable Fats

Concentrated Ozone* Ketones, Strong Oxidizing Oxidizing Concentrated Mercaptans, Many Brake Fluids Ketones, Low Water, Alcohols, Generally Ozone, Strong Similar to Petrolium Mineral Oils Ketones, Esters, Acids, Esters, Acids, Esters, Acids, Esters, Chloronated Solvents Hydrazine Mole Weight, Glycols, Alkali, Attacked By Acids, Fats, Natural Solvents, Coal and Solvents, Esters, Aldehydes, Ketones, Ketones, Ketones, Hydrocarbons, Oils, Ketones Ester and Esters, Aromatic Oils Greases, Rubber Tar Solvents, Aromatic Aldehydes, Chlorinated Choloronated, Chlorinated Chlorinated Nitro Contentrated Nitro Hydrocarbons, Most Aromatic Hydrocarbons Chlorinated and Nitro Aromatic Aromatic and Nitro Hydrocarbons, Acids, Dilute Containing Halogenated Hydrocarbons Hydrocarbons and Nitro Hydrocarbons and Nitro and Nitro Hydrocarbons Ethers, Amines, Sodium Compounds Hydrocarbons, Hydrocarbons Hydrocarbons Hydrocarbons Hetercocyclics Hydroxide Phenol

*Except PVC Blends Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU Acetaldehyde CUAAU CCUCAUU U Acetamide CCAAA BBUUBAB U Acetic Acid, Glacial BCBACUCCUBBCC U Acetic Acid, 30% BBBABBAACBABB U Acetic Anhydride BBBBCUAAUBCUU U Acetone BBAAUUBBUCBUU U Acetophenone CUAAUUUUUU UU U Acetyl Chloride UU AA Acetylene BBAAB BB CB A Acrylonitrile UCUUU CC UUUU Adipic Acid A A Alkazene UUBBB Alum-NH3-Cr-K AAAAA AA A U Aluminum Acetate ABAABBBA UUU U Aluminum Chloride AAAAAAAA UBAA A Aluminum Fluoride BAAAAAAA UBAA Aluminum Nitrate AAAAAAAA B Aluminum Phosphate AAAAAAAA A A Aluminum Sulfate ABAAA AA UAAA U Ammonia Anhydrous A AAA AB CUU Ammonia Gas (Cold) AAAAA AA AAA Ammonia Gas (Hot) BB BB UAUU Ammonium Carbonate AAAAUBA Ammonium Chloride AAAAAAAA A Ammonium Hydorxide UUAAUBAAAUABB U Ammonium Nitrate CAAAAABAU A Ammonium Nitrite AAAAA AA B Ammonium Persulfate AUAAU AAU U Ammonium Phosphate BAAAA AA AA Ammonium Sulfate ABAAA AA U U Amyl Acetate BCAAUUUUUUUUU U Amyl Alcohol BBAABAAAUBUAB U Amyl Borate UUUUA AA A A Amyl Chloronapthalene UUUU UUUCUBA U Amyl Napthalene UUUUU UUUCUAA B Aniline UUBBUUCCUC CC U Aniline Dyes BBBBU BBUB BB U Aniline Hydrochloride BCBBB UUUBUBB U Animal Fats UUBBAABBAUBAA A Ansul Ether UUCCC UUBAUCU U Aqua Regia UUUC UC CB Arochlor(s) UUCCC U UBBA U Arsenic Acid BAAAAAAACAAAA C Arsenic Trichloride AA Askarel UUUUB UUUUUBA U Asphalt UUUUBACCBAUBA B Barium Chloride AAAAAAAAAAAAA A Barium Hydroxide AAAAAAAAAAAAA U Barium Sulfate AAAAAAAAAAAAA Barium Sulfide ABAAAAAAABAAA U Beer AAAAAAAA UAAA U Beet Sugar Liquors AAAAA AA UAAA U Benzene UUUUUUUUUCUAA U Benzenesulfonic Acid AA BA Benzaldehyde UAAUUUUUUUUU U Benzyl Alcohol BBUUAB BA Benzyl Benzoate BB AA Benzyl Chloride UU AA Benzoic Acid BBA Blast Furnace Gas UU U U ABA Bleach Solutions UUAA CA BBA Borax BBAAB AAA BBA B Bordeaux Mixture BBAA AA BBA Boric Acid AAAAAAAAAUAAA U Brine AAA AA Bromine - Anhydrous UU BCBA Bromine Trifluoride UUUUUUUUUUUUU U Bromine Water BABBA Bromobenzene UUUUUUUUUCUAA U

Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU Bunker Oil A BABAA A Butadiene UUCCUUBBU BB Butane UUUUAAAAAA AA A Butter UUBAAABBAUAAA A Butyl Acetate BB UUU CUUU U Butyl Acetyl Ricinoleate AA BB BA Butyl Acrylate UUU B U Butyl Alcohol AABBA AAUBBAA U Butyl Amine UUUUC UUUUBUU U Butyl Benzoate AA UU AA Butyl Carbitol AAA BB A Butyl Cellosolve AAC BB UU Butyl Oleate UUBB UU BA Butyl Stearate UUBBB A BA Butylene UUUUB CC B BA Butyraldehyde CCBBC CC BCUU U Calcium Acetate A AAB BB UU Calcium Bisulfite UUUUA AAAUAAA Calcium Chloride AAAAAAAAAAAAA A Calcium Hydroxide AAAAAAAAAUAAA U Calcium Hypochlorite UUAACBCA BAA Calcium Nitrate AAAAAAAAAABAA A Calcium Sulfide BBAABBAAAUBAA U Cane Sugar Liquors AAAAAAAAUUAAA U Carbamate UUBBC BBUB AA U Carbitol BBBBB BBUBBBB U Carbolic Acid UUBBUCCUUAA Carbon Bisulfide UUCUUU C AA Carbon Dioxide BBBBAABAAAAAA B Carbonic Acid ABAAAAAAAAAAA A Carbon Monoxide BBAAAAAAAUABA Carbon Tetrachloride UUUUCBUUCCUAA Castor Oil AABBAAAAACAAA A Cellosolve UUBB B B C Cellosolve Acetate UUBBU UB UU Cellulube AAU UU BA U Chlorine (Dry) UU BCB C AA Chlorine (Wet) UUCC BUCUC BA U Chlorine Dioxide CCU UC BA Chlorine Trifluoride UUUUUUUUUUUBU Chloroacetone BBAUBB UU Chloroacetic Acid BB Chlorobenzene UUUUUUUUCUUBA U Chlorobromomethane UUBB UU UBB Chlorobutadiene UUUUU U BA Chlorododecane UUUUU U AA Chloroform UUUUU UU UBA O-Chloronapthalene UUUUU U UBA 1-Chloro 1-Nitro Ethane UUUUU UUUUU C U Chlorosulfonic Acid UUUUU UUUU C U Chlorotoluene UUUUU UUU BA Chrome Plating Solutions UUUUU UCUUBBA Chromic Acid UUCCU UBU CCA Citric Acid AAAAAAAAAUAAA Cobalt Chloride AAAAA A UBAA U Cocoanut Oil UUAAA BBA AA A Cod Liver Oil UUAAA BBA BAA A Coke Oven Gas UU BBA Copper Acetate AAB BB Copper Chloride AAAAA AAA AAA A Copper Cyanide AAAAA AAA AAA A Copper Sulfate BBAAA AAAUAAA U Corn Oil UUBCAABBAUAAA A Cottonseed Oil UUCAAABBAUAAA A Creosote UUUUBUCCBCUAA A Cresol UUUUC CCU BA Cresylic Acid UUUUC CCU BA Cumene UU B BA Cyclohexane UUUUA UUBAUAA B

Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU Cyclohexanol BUUUBAABAA Cyclohexanone BBUUUU B UU P-Cymene UU B BA Decalin UU UU B AA Decane UU B UUB BAA A Denatured Alcohol AAAAAAAACAAAA U Detergent Solutions BBAAAAAAU AAA U Developing Fluids ABBBA AA AAAA Diacetone AA B UU Diacetone Alcohol UUAAUUAAB A Dibenzyl Ether UUBBUUB BB Dibenzyl Sebecate BB U BBCCB Dibutyl Amine UUUUU UU CUU Dibutyl Ether UUCCC CCBAUCC C Dibutyl Phthalate CUBAUBUUCABBB Dibutyl Sebecate UUBBU UUUBBBB U O-Dichlorobenzene UUUUU UUUAUBA Dichloro-Isopropyl Ether UUCCU UUBAUCC B Dicyclohexylamine UU C C Diesel Oil UUUUAABBBAUAA A Diethlamine BBBBC CCCBBUU U Diethyl Benezene UUUUU UUUBUAA Diethyl Ether UUUUU CCAAUCU C Diethylene Glycol AAAAAAAAUUBAA U Diethyl Sebecate BBU UU BBBB Diisobutylene BCCAUCA Diisopropyl Benzene UUUUU UU B BA Diisopropyl Ketone AAU UU B UU Dimethyl Aniline UUUB U UU Dimethyl Formamide BCCBU Dimethyl Phthalate UUBBU UU B BB Dinitrotoluene UUUUU UU C Dioctyl Phthalate BB BUU BCBB Dioctyl Sebecate UUBBUCUUBCCCB U Dioxane BB C Dioxolane UUCBU Dipentene BACA Diphenyl BBA Diphenyl Oxides A CBA Dowtherm Oil UUUU UUUB BAA Dry Cleaning Fluids UUUUC UU BA Epichlorohydrin UUBB UU Ethane UUUUA BBBAUAA A Ethanolamine BBBBBBBBCBBUU U Ethyl Acetate UUBBUUCCUBBUU Ethyl Acetoacetate CCBBU C BBUU Ethyl Acrylate BB U BBUU Ethyl Alcohol AAAAAAAABAAAA U Ethyl Benzene UUUUUUUUUC AA Ethyl Benzoate BB B AA Ethyl Cellosolve BB B UU Ethyl Cellulose BBBB BBBUCUU U Ethyl Chloride BBAAABBCBUUAA C Ethyl Chlorocarbonate UU CC BA Ethyl Chloroformate UCCBA Ethyl Ether CCCBUUBA CU U Ethyl Formate UUBBUUBB AA Ethyl Mercaptan UUUUUU U A Ethyl Oxalate AAAAUUC AA A Ethyl Pentochlorobenzene UUUUCCUUCB BA Ethyl Silicate BBAAAAAA AA Ethylene A AA Ethylene Chloride CC CA Ethylene Chlorohydrin BB U BB BCBA Ethylene Diamine BBAAAAAA AUU Ethylene Dichloride UUCCUUUUUUCCA Ethylene Glycol AAAAAAAABCAAA U Ethylene Oxide CCU UU CUU Ethylene Trichloride CCU UU CCA

Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU Fatty Acids CCUUB BB UC A Ferric Chloride AAAAAAAAA A A Ferric Nitrate AAAAAAAA ACAA A Ferric Sulfate AAAAAAAA ABAA A Fish Oil A AAA Fluoroboric Acid AAAAA AA Fluorine (Liquid) CC UU B Fluorobenzene UUUUU UU UBA Fluorocarbon Oils AA Fluorolube UAAA AA A BB Fluorinated Cyclic Ethers AA Fluosilicic Acid AAAA Formaldehyde AABBAAU A Formic Acid AAAABBAAU BCC Freon 11 UUUUA BAUAUBA Freon 12 BABBAAAAAAUCB Freon 13 AAAAAAAA A A Freon 21 UUUUBBUUUU Freon 22 AAAAUAAAUAUUU Freon 31 BBAAU AB B U Freon 32 AAAAA AA A C Freon 112 UUUBBBA A Freon 113 CBUUAAAABAUUB Freon 114 AAAAAAAAAAUBB Freon 115 AAAAA AA A B Freon 142b AAAAA AA A U Freon 152a AAAAA AC A U Freon 218 AAAAA AA A A Freon C316 AAAAA AA Freon C318 AAAAA AA A A Freon 13B1 AAAAA AAAAU A Freon 114B2 UCUUB AA A B Freon 502 AA B A B Freon TF CBUUAAAAAAU A Freon T-WD602 CBABB BBAAU A Freon TMC BCBBB BBBAC A Freon T-P35 AAAAA AAAAA A Freon TA AAAAA AAAAA C Freon TC UBABA AAAAU A Freon MF UBU A CUCA Freon BF UUUBBBA Fuel Oil UUUUAABBBAUAA A Fumaric Acid AAU A BB BAA U Furan, Furfuran UUCCU UU B Fufural CCBBUUBB C U Gallic Acid ABBBB BBU AA U Gasoline UUUUAABBAAUAA Gelatin AAAAAAAAAUAAA U Glauber's Salt UBB U AA U Glucose AAAAAAAAAUAAA Glue AAAAAAAAAUAAA Glycerin AAAAAAAAABAAA U Glycols AAAAAAAABAAAA U Green Sulfate Liquor BBAABABBAUAAA A Halowax Oil UUUUU UU AUAA n-Hexaldehyde UUBAUABB Hexane UUUUAABBBAUAA A n-Hexene-1 UUUUB BBAAUAA A Hexyl Alcohol AACCA BBUABAA U Hydrazine AAB BBU C Hydraulic Oil (Petroleum) UUUUAABBAACAA A Hydrobromic Acid ACAAU AAU UCA U Hydrochloric Acid (Hot) 37% UUCCUUUCUUUUA U Hydrochloric Acid (Cold) 37% BBAABUBAUUBBA U Hydrocyanic Acid BBAAB BA U BA U Hydrofluoric Acid (Conc.) Hot UUUUU UCUUUUB U Hydrofluoric Acid (Conc.) Cold UUBBU BAUUUUA U Hydrofluoric Acid - Anhydrous UUBB A U Hydrofluosilicic Acid ABAAB BA UU A

Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU Hydrogen Gas BBAAA AAACCCA B Hydrogen Peroxide (90%) UUCCU C UABB Hydrogen Sulfide (Wet) (Cold) UUAAUBAB ACCU U Hydrogen Sulfide (Wet) (Hot) UUAAUBBC ACCU U Hydroquinone BB C C BU Hypochlorous Acid BBBBUB A Iodine Pentafluoride UUUUUUUUUUUUU U Iodoform AA Isobutyl Alcohol ABAAB AAU ABA U Isooctane UUUUAABBBAUAA A Isophorone AAU B U Isopropyl Acetate AAU UUA U U Isopropyl Alcohol ABAABAAA AABA U Isopropyl Chloride UUUUU U BA Isopropyl Ether UUUUB BBBA U C Kerosene UUUUAACCBBUAA A Lacquers UUUUUUUUUAUUU U Lacquer Solvents UUUUUUUUUAUUU U Lactic Acid AAAAA AA UAAA Lard UUUUAACCAUBAA A Lavender Oil UUUUB C B BA B Lead Acetate A AABBB UU Lead Nitrate AAAAA AA BA Lead Sulfamate BBAAB AA UBAA U Lime Bleach AAAAA BB UBAA U Lime Sulfur UUAAU AA UAAA U Lindol AA CC CCB Linoleic Acid UUB U B B Linseed Oil UUBBA BBBA AA A Liquified Petroleum Gas UUUUAABBAACBA C Lubricating Oils (Petroleum) UUUUAABBBCUAA A Lye BBAAB BABCBAB U Magnesium Chloride AAAAAAAAACAAA Magnesium Hydroxide BBAABAAAAC A U Magnesium Sulfate BBAAAAAA BAAA U Maleic Acid BBCC B A Maleic Anhydride BBCC A Malic Acid BUUA BB BAA U Mercuric Chloride AAAAAAAA A Mercury AAAAAAAAA A Mesityl Oxide UUBBU UU BUUU Methane UUUUAABBBAUBA A Methyl Acetate UUBBUUB UU Methyl Acrylate UUBBU B UU Methylacrylic Acid UUBB B UB U Methyl Alcohol AAAAABAAUBAAC U Methyl Bromide BUU AAU Methyl Butyl Ketone UUAAU UU ABUU Methyl Cellosolve UUBB BB U Methyl Chloride UUCCU UU UBA U Methyl Cyclopentane UUUU C B BA Methylene Chloride UUUUU UUU BB Methyl Ethyl Ketone UUAAUUUUUA UU U Methyl Formate UUBBUUBB BB Methyl Isobutyl Ketone UUCCUUUU BCUU U Methyl Methacrylate UUUUUUU BCUU U Methyl Oleate UUBBU U BA Methyl Salicylate BB U Milk AAAAA AAUBAAA U Mineral Oil UUUUAABBABBAA A Monochlorobenzene UUUUUUUU BUBA Monomethyl Aniline UU U UU B Monoethanolamine BBBBU UU BUU Monomethylether BBAAA A B Monovinyl Acetylene BBAAA BB CB A Mustard Gas AAAAAA Naptha UUUUCACUCBUBA B Napthalene UUUUU UUBBUAA Napthenic Acid UUUUB B AA

Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU Natural Gas CCUUAAAABBACA B Neatsfoot Oil UUBBA UBAA A Neville Acid UUBBC C A BA Nickel Acetate A AAB B UU Nickel Chloride AAAAA AA AAAA Nickel Sulfate BBAAA AAA AAA U Niter Cake AAAAA AA CAAA U Nitric Acid - Conc. UUCCUUCBUUUUA U Nitric Acid - Dilute UUBBUUAACUBBA U Nitric Acid - Red Fuming UUUUUUUUUUUUC U Nitrobenzene UUUUUUUUUUUUB U Nitrobenzine CC UU AA Nitroethane BBBBU CC UUU U Nitromethane BBBBU CC UUU U Nitrogen AAAAAAAAAAAAA A Nitrogen Tetroxide UUCCU UU CUU Octadecane UUUUA BBAAUAA B n-Octane UUUU BUBA Octachlorotoluene UUUUU UUUUUBA U Octyl Alcohol BBAAB AAUBBBA U Oleic Acid CCBBC CCB B Oleum Spirits BCBCBA Olive Oil UUBBABBBA U A A o-Dichlorobenzene UUUBBA Oxalic Acid BBAABCBB UBAA Oxygen - Cold BBAABBBBABAAA A Oxygen - 200 - 400° F. UUUUUUUUUUBUB Ozone UUBAUABAAAAUA B Paint Thinner, Duco UUUU B BB Palmitic Acid BBBBABBBAU AA Peanut Oil UUCCAABBBUAAA A Perchloric Acid BB CAA AUAA Perchloroethylene UUUUCBUUUABBA Petroleum - Below 250 UUUUAABBBUBBA A Petroleum - Above 250 UUUUCBUUUUUUB C Phenol BB CCU CBA Phenylbenzene UUUUU UU B BA Phenyl Ethyl Ether UUUUU UU B Phenyl Hydrazine ABCCU CC A Phorone BB C Phosphoric Acid - 20% BCAAB BAAU BA Phosphoric Acid - 45% UUBBU BBAUUBA Phosphorous Trichloride UUAAU UU AA Pickling Solution CCUC BU Picric Acid BBBBB ABB UBA Pinene UUUUB BBBBUBA Pine Oil UUUUB UU B AA Piperidine UUUUU UU UU Plating Solution - Chrome UUAA C U A Plating Solution - Others AAA A U A Polyvinyl Acetate Emulson AA BB Potassium Acetate A AAB BB UU Potassium Chloride AAAAAAAAAAAAA A Potassium Cupro Cyanide AAAAA AAAAAAA A Potassium Cyanide AAAAAAAAAAAAA A Potassium Dichromate BBAAA AAAAAAA A Potassium Hydroxide BBAABAAABBCCB U Potassium Nitrate AAAAAAAAAAAAA A Potassium Sulfate BBAAAAAAABAAA U Producer Gas UUUUA BBAUBBA B Propane UUUUAAAABAUBA A Propyl Acetate UUBBUUUU B UU n-Propyl Acetate UUAAUU B UU U Propyl Alcohol AAAAAAAAUAAAA U Propyl Nitrate BB CUU Propylene UUUUU UU B BA Propylene Oxide BB UU U Pyranol UUUUAUUUB BAA A Pydrauls UUBBUUUUU BBA U

Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU Pyridine UUBBUUUU U Pyroligneous Acid BB BB B Pyrrole CCCCU U UBB U Radiation BBUBB BBAUCUU B Rapeseed Oil UUAABABBBUUAA B Red Oil UUUUA BBAAUAA A Sal Ammoniac AAAAA AAAABAA A Salicylic Acid ABAAA AA Salt Water AAAAA AA C AA Sewage BBBBA AAUUBAA U Silicate Esters UUUUB AAA UAA Silicone Greases AAAAAAAAAACAA A Silicone Oils AAAAAAAAAACAA A Silver Nitrate AAAAB AAABAAA A Skydrol 500 UUBAUUUUU CCU U Skydrol 7000 UUAAUUUUUUBCB U Soap Solutions BBAAAAAAAUAAA U Soda Ash AAAAAAAA UAAA Sodium Acetate ACAAB BBUU UU U Sodium Bicarbonate AAAAAAAA CAAA Sodium Bisulfite ABAAAAAA CAAA U Sodium Borate AAAAAAAA AAAA Sodium Chloride AAAAAAAAACAAA Sodium Cyanide AAAAAAAA AAAA Sodium Hydroxide AAAABBAABUBBB A Sodium Hypochlorite CCBBBABBUUBBA U Sodium Metaphosphate AAAAA BB AA Sodium Nitrate BBAABAAA U Sodium Perborate BBAAB BB BBAA Sodium Peroxide BBAAB BBU UAA U Sodium Phosphate AAAAA AAA U A A Sodium Silicate AAAAA AA A Sodium Sulfate BBAAAAAAABAAA U Sodium Thiosulfate BBAAB AAABAAA U Soybean Oil UUCCAABBBUAAA A Stannic(ous) Chloride AABBA AA BAA Steam Under 300° F. UUAAU CUU UUU U Steam Over 300° F. UUCBUUUUU UUU U Stearic Acid BBBBBBBBA A Stoddard Solvent UUUUAACCABUAA A Styrene UUUUU UU UCB Sucrose Solution AAAAA AA U Sulfite Liquors BBBBBBBB UUBA U Sulfur UUAAUCAA UAAA U Sulfur Chloride UUUUC CB AA Sulfur Dioxide CCBAU CC UABA U Sulfur Hexafluoride AAAAAAA AAA Sulfur Trioxide BUBBU UU UBBA U Sulfuric Acid (Dilute) CCBBUBBABUUCA U Sulfuric Acid (Concentrated) UUBBUUUBUUUUA U Sulfuric Acid (20% Oleum) UUUUUUUUUUUUA U Sulfurous Acid BBBBB BAUUU A U Tannic Acid ABAAA AAAAB A U Tar, Bituminous UUUUBBCC BAA U Tartaric Acid ABBBABBAAUAAA Terpineol UUCCB UUBA AA Tertiary Butyl Alcohol BBBBB BBUBBBA U Tertiary Butyl Catechol UCBBUBBUUAAU Tertiary Butyl Mercaptan UUUUU UUU A Tetrabromomethane UUUUU BA Tetrabutyl Titanate BBBAB AA AA Tetrachloroethylene UUUUU BU BA U Tetraethyl Lead UUUUB CC BA Tetrahydrofuran UUBB A U Tetralin UUUUU UU AA Thionyl Chloride UUUU U A Titanium Tetrachloride UUUUC UU C BA Toluene UUUUUUUUCUUBA Toluene Diisocyanate CCAA UU Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU Transformer Oil UUUUA BB BAA B Transmission Fluid Type A UUUUAABBAABAA A Triacetin BCAAB BBUB UU U Tributoxy Ethyl Phosphate BBAAU UUUA BA Tributyl Phosphate BUAAU UCUA UU U Tributyl Mercaptan UUUUU UU A Trichloroethane UUUUU UUUUUBA U Trichloroacetic Acid CBBBB BB C U Trichloroethylene UUUUCUUUU BBA Tricresyl Phosphate UUAAUUCCCBCBB Triethanol Amine BBBBC AAUC UU U Triethyl Aluminum B Triethyl Borane A Trinitrotoluene UUUUU BB B BB Trioctyl Phosphate UUAAU UU BCBB U Triaryl Phosphate UUAAU CCBBCBA U Tung Oil UUCUA BBBB BA Turbine Oil UUUUBABB A BA B Turpentine UUUUAAUUUBUBA A Unsymmetrical Dimethyl Hydrazine (UDMH) AAB BA UUUU Varnish UUUUB CC A BA Vegetable Oils UUAAAABB UAAA A Versilube AAAAAAAA BCAA A Vinegar BBAAB AA BA A U Vinyl Chloride BUUA Wagner 21B Fluid ABAC AB UCUU Water AAAAABAAAUAAA U Whiskey, Wines AAAAA AAAUAAA U White Pine Oil UUUUB UU B AA White Oil UUUUA BB AUAA A Wood Oil UUUUA BB BUBA A Xylene UUUUUUUUCBUAA Xylidenes UUUUC UU UUUU Zeolites AAAAA AA AA Zinc Acetate ACAAB BB UUUU U Zinc Chloride AAAAA AA C AA U Zinc Sulfate BBAAA AA UAAA U SPECIFICATION FLUIDS MIL-L-644B CCCCAACCC C B MIL-L-2104B UUUUAAAAAACAA A MIL-L-2105B UUUUAAAAAACAA A MIL-G-2108 UUUUAAAAAACAA A MIL-S-3136B Type I UUUUAABCBAUAA B Type II UUUUAACCCAUAA Type III UUUUAACCCAUAA Type IV UUUUAAAAAACAA A Type V UUUUAABBBACAA A Type VI UUUUAABBBACAA A Type VII UUUUAACCCAUAA MIL-L-3150A UUUUAAAAAACAA A MIL-L-3503 UUUUAABBBACAA A MIL-L-3545B UUUUBBBCCCUAA B MIL-C-4339C UUUUAAAAAACAA A MIL-G-4343B UUCCB BBA UBA A MIL-L-5020A UUUUAABCBAUAA B MIL-J-5161F UUUUAACCCAUAA MIL-C-5545A UUUUBBBCCCUAA B MIL-H-5559A BAAAABBBCCBBB C MIL-F-5566 AAAAABBBBAAAA MIL-F-5602 UUUUAABBBACAA A MIL-H-5606B UUUUAABBBAUAA A MIL-J-5624G Grade JP-3 UUUUAACCCAUAA B Grade JP-4 UUUUAACCCAUAA B Grade JP-5 UUUUAACCCAUAA B MIL-O-6081 C UUUUAABBBACAA A

Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU MIL-L-6082C UUUUAAAAAACAA A MIL-H-6083C UUUUAABBBACAA A MIL-L-6085A UUCUABCCCBCAA C MIL-L-6086B UUUUAAAAAACAA A MIL-L-6387A UUUUABCCBBCAA MIL-C-6529C UUUUBBBCCCUAA B MIL-F-7024A UUUUAABCBAUAA B MIL-H-7083A BAAAABBBCCBBB C MIL-G-7118A UUCUABCCCBCAA C MIL-G-7187 UUUUAAAAAACAA A MIL-G-7421A UUUUABCCBBCAA MIL-H-7644 BABABBBBCCUBA B MIL-L-7645 UUUUBBBCCCUAA B MIL-G-7711A UUUUAAAAAACAA A MIL-L-7808F UUCUABCCCBCAA C MIL-L-7870A UUUUAABBBACAA A MIL-C-8188C UUCUABCCCBCAA C MIL-A-8243B BAAAABBBCCBBB C MIL-L-8383B UUUUAAAAAACAA A MIL-H-8446B UUUUBCB UBUAA C MIL-I-8660B AAAAAAAAAAUAA MIL-L-9000F UUUUAABCCBUAA B MIL-T-9188B UUAAUUUUUUUCU U MIL-L-9236B CCCCABCCBBUAA C MIL-L-10295A UUUUAABBBACAA A MIL-L-10324A UUUUAABBBACAA A MIL-G-10924B UUUUAABBBACAA A MIL-L-11734B UUCUABCCCBCAA C MIL-O-11773 UUCUABCCCBCAA C MIL-P-12098 BABABBBBCCUBA B MIL-H-13862 UUUUAABBBACAA A MIL-H-13866A UUUUAABBBACAA A MIL-H-13910B BABABBBBCCUBA B MIL-H-13919A UUUUAABBBACAA A MIL-L-14107B UUUUC A UUAA MIL-L-15017 UUUUAAAAAACAA A MIL-L-15018B UUUUAAAAAACAA A MIL-L-15019C UUUUAAAAAACAA A MIL-L-15719A CBBBBBBBUUUBA B MIL-G-15793 UUCUABCCCBCAA C MIL-F-16929A UUCUABCCCBCAA C MIL-L-16958A UUUUAABBBACAA A MIL-F-17111 UUUUAABBBACAA A MIL-L-17331D UUUUAAAAAACAA A MIL-L-17353A UUUUABCCBBCAA MIL-L-17672B UUUUAAAAAACAA A MIL-L-18486A UUUUAAAAAACAA A MIL-G-18709A UUUUAAAAAACAA A MIL-H-19457B UUAAUUUUUUUCU U MIL-F-19605 UUUUAACCCAUAA MIL-L-19701 UUCUABCCCBCAA C MIL-L-21260 UUUUAAAAAACAA A MIL-S-21568A BAAAAAAA UBA A MIL-H-22072 BAAAABBBCCBBB C MIL-L-22396 UUUUAAAAAACAA A MIL-L-23699A UUCUABCCCBCAA C MIL-G-23827A UUCUABCCCBCAA C MIL-G-25013D BAAAAABBCBUBA B MIL-F-25172 UUUUAACCCAUAA MIL-L-25336B UUCUABCCCBCAA C MIL-F-25524A UUUUAACCCAUAA MIL-G-25537A UUUUAABBBACAA A MIL-F-25558B UUUUAABBBACAA A MIL-F-25576C UUUUAACCCAUAA MIL-H-2598 UUUUAABBBACAA A MIL-H-25598 MI-F-25656B UUUUAACCCAUAA MIL-L-25681C BAAAAABBCBUBA B MIL-G-25760A CCCCABCCBBUAA C

Chemical Resistance Guide Important Note: 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., LLC

Chemical Effect Rating: A - Recommended - Little or minor effect B - Minor to moderate effect - Rubber parts probably still useful in many applications

C - Moderate to severe effect - Rubber parts perhaps still useful in limited applications U - Not recommended

Blank - 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 rated.

Fluid Resistance (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Key NR SBR IIR EPM NBR CO CR CSM AU T Si FSi FKM ACM IR BR EPDM ECO EU MIL-L-25968 UUCUABCCCBCAA C MIL-L-26087A UUUUAAAAAACAA A MIL-G-27343 AAAAAAAAAAUAA MIL-H-27601A UUUUBBBCCCUAA B MIL-G-27617 BAAU UAA MIL-I-27686D BAAAABBBCCBBB C MIL-L-27694A AAAAAAAAAAUAA MIL-L-46000A UUCUABCCCBCAA C MIL-H-46001A UUUUAAAAAACAA A MIL-L-46002 UUUUAAAAAACAA MIL-H-46004 UUUUAABBBACAA A MIL-P-46046A BABABBBBCCUBA B MIL-H-81019B UUUUAABBBACAA A MIL-S-81087 AAAAAAAAABUBA O-A-548a BAAAABBBCCBBB C O-T-634b UUUUCCUUUCUBA U P-S-661b UUUUAACCCAUAA P-D-680 UUUUAACCCAUAA TT-N-95a UUUUAACCCAUAA TT-N-97B UUUUBBCCCAUBA C TT-I-735b AAAAABBBBAAAA TT-S-735 Type I UUUUAABCBAUAA B Type II UUUUAACCCAUAA Type III UUUUAACCCAUAA Type IV UUUUAAAAAACAA A Type V UUUUAABBBACAA A Type VI UUUUAABBBACAA A Type VII UUUUAACCCAUAA TT-T-656b UUAAUUUUUUUCU U VV-B-680 BABABBBBCCUBA B VV-G-632 UUUUAAAAAACAA A VV-G-671c UUUUAAAAAACAA A VV-H-910 BABABBBBCCUBA B VV-I-530a UUUUAABBBACAA A VV-K-211d UUUUAACCCAUAA VV-K-220a UUUUAABCBAUAA B VV-L-751b UUUUBBBCCCUAA B VV-L-800 UUUUAABBBACAA A VV-L-820b UUUUAABBBACAA A VV-L-825a Type I UUUUAAAAAACAA A Type II UUUUAAAAAACAA A Type III UUUUBBBCCCUAA B VV-O-526 UUUUAAAAAACAA A VV-P-216a UUUUAABBBACAA A VV-P-236 UUUUBBBCCCUAA B 51-F-23 UUUUAABBBACAA A ASTM Method D-471 1. UUUUAAAAAACAA A 2. UUUUAABBBACAA A 3. UUUUAABBBACAA A

Note: Our laboratory is in constant touch with the latest developments on all of the elastomers shown. In addition, it is constantly experimenting with new elastomers as they are developed. For specific up to date information for your particular needs contact West American Rubber Company, LLC.

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