Corrosion-Resistant Coatings for Fan Equipment - New York Blower

Airstream, exterior, and all surfaces are common arearequirements for coatings. Airstream surfaces coated -includes interior of housing, entire wheel, that portion of theshaft in contact with the airstream, airstream areas of collar,inlet ring and/or inlet plate, and all surfaces of the inlet cone.Exterior surfaces coated - includes all outside surfaces,except bearings, motor, and the shaft. All surfaces coated -includes all surfaces inside and outside, except bearings,motor, and that portion of the shaft not in contact with theairstreamAPPLICATION AND SELECTION GUIDEThe table below provides a condensed guide to the corrosionresistantproperties of generic coatings commonly available onfan equipment. Each coating should be chosen according tothe specific corrosive chemical or chemicals involved in theapplication. The customer is responsible for selecting thecoating which will provide proper protection. nyb can onlywarrant that the coating will be applied according to the coatingmanufacturer’s instructions.Fume-and aerosol-contaminated air has been used as the basisfor this guide. The fumes or aerosols of a substance areeffectively diluted by air, reducing the chemical concentration toa level significantly lower than the liquid solution. Because thisguide is based on dilute concentrations of fumes and aerosols,relatively few chemicals are listed as unsatisfactory for use withthese protective coating systems.Protective coatings play an important role in corrosion-resistantconstruction. They often have the lowest first cost. Specialalloy and fiberglass-reinforced plastic construction are alsoavailable for corrosive applications. Special alloy and FRPconstruction are able to handle a wider range of corrosives, arefar superior when it comes to corrosion resistance, and manytimes result in the lowest life cycle cost.CORROSION-RESISTANCE GUIDE TO GENERIC COATINGS AND ASSORTED METALSCOATINGSMETALSCorrosiveAgentBaked PhenolicAir-driedPhenolicCatalyzedEpoxyBaked Epoxy-PhenolicCatalyzedEpoxy-PhenolicInorganic ZincAir-dried VinylCoal Tar EpoxyAlkydAir-driedSiliconePolyurethanePolyesterVinyl EsterCarbon SteelAluminum304*Stainless Steel316Stainless SteelAcetic AcidAcetic AnhydrideAcetoneAcetyleneAluminum AcetateAluminum Chloride (dry)Ammonia (dry)Ammonia (wet)Ammonium SulfiteAnilineBarium ChlorideBenzeneBoric AcidBromine WaterButaneCalcium ChlorideCarbon Tetrachloride (dry)Chlorine Gas (dry)ChlorobenzeneCitric AcidCopper SulfateCyclohexanoneEthyl AcetateEthyl AlcoholEthylene DichlorideEthylene OxideFerric ChlorideFerric NitrateFluorine Gas (dry)FormaldehydeEEEEEEEEEEEEENEEESSEEEEEESSSNENNNEESSNSSSNENSEESNESNNSNNSSNENNSSNSNNSNSSSSNENSNNSNSSNNENNSTTSSSEEESTEEENEEETESESSESTETTENNSENSSSSNESENSESSSEENSSSNESNSNNEESNNNNESENNSNSNSNSSSESESNNEE = Excellent S = Satisfactory N = Not Recommended T = Test data not available* 347 stainless steel has the same corrosion-resistance characteristics as 304 stainless steel.Alloy 2205 has similar corrosion-resistance characteristics as 304 stainless steel.The suitability of the coatings found in this table has been based on fume concentration effectively diluted by air at 70°F. Highchemical concentration and/or elevated temperatures and/or moisture may significantly reduce a coating’s suitability.Page 3EENSSSNNNSENENSENNSEESSSNSESSENSNTTSSNSNSNSSTSSSNSSNSSNNSTTNNNNNNSNNNNNNNNSNNNNNNNNNNNNNNNSSSSSSSNSSSSSNSSSSSSSSSSSSESSSNNESSSSSSSSSSSSESSSSSSSSNNSSNSENNTSESNSSSSSSTESNSSSSNSSNSTTNESNEEEEEESENESEESESEESESNNEEESNNESTNSSNNNNNNENSSSNNNSSSSNNNSSEEESSEENNNSSNSSNNSSNSSSSSNNESSSEEENEESEEEENESSSSEESEEESNEEEEEEEESEEEEEEENESESSEESEEESNEEE

CORROSION-RESISTANCE GUIDE TO GENERIC COATINGS AND ASSORTED METALSCOATINGSMETALSCorrosiveAgentBaked PhenolicAir-driedPhenolicCatalyzedEpoxyBaked Epoxy-PhenolicCatalyzedEpoxy-PhenolicInorganic ZincAir-dried VinylCoal Tar EpoxyAlkydAir-driedSiliconePolyurethanePolyesterVinyl EsterCarbon SteelAluminum304*Stainless Steel316Stainless SteelFormic AcidGasolineGlycerineHydrochloric AcidHydrofluoric AcidHydrogen PeroxideHydrogen Sulfide (dry)Hydrogen Sulfide (wet)IodineLactic AcidMagnesium CarbonateMercuric ChlorideMethyl AlcoholMethyl Ethyl KetoneMineral OilMoistureNapthaNitric AcidOzonePerchloric AcidPhenolPhosphoric AcidPolyvinyl AcetatePotassium ChloridePotassium CyanidePotassium DichromatePotassium HydroxidePyridineSalt SpraySilver NitrateSodium BicarbonateSodium ChlorideSodium CyanideSodium DichromateSodium HydroxideSodium HypochloriteSodium SulfateSteam VaporSulfamic AcidSulfur Dioxide (dry)Sulfur Dioxide (wet)Sulfuric AcidTannic AcidTolueneTrichloroethyleneXyleneZinc ChlorideZinc SulfateSEEENNESEEEEEEEEEENSEEEEESNEEEEENNNNEEEEEEEEEEEENSESNNSNTSEESNEEENNNNSNSSSNTSSESSSNNSNSSSSENNNSSNSENNSSNNSEENSEESNNNSNENNNSNENSESSSNSSSSSNSENESSNEESNNESTSEEESEEENNSSSTEEENEETEESSSNEETSSSTEEEEENESSNNSNNEEESNEESNNNNSNESSSNSNEESNNNENSSNSENNSEENESNNNNNNNSSEEEEENSNSNNSNSSSENNSNSSNNNNNNNNESENNE = Excellent S = Satisfactory N = Not Recommended T = Test data not available* 347 stainless steel has the same corrosion-resistance characteristics as 304 stainless steel.NSSSSSENNEETENEENSSESENSSSETEEEESSENESSNNSENNNEENNSNNNSSNSSSNNEESNNNNNTSSSSNETEESESSSSSSSNESNSSSAlloy 2205 has similar corrosion-resistance characteristics as 304 stainless steel.The suitability of the coatings found in this table has been based on fume concentration effectively diluted by air at 70°F. Highchemical concentration and/or elevated temperatures and/or moisture may significantly reduce a coating’s suitability.NSNNNNNNNNSNNNSESNNNNNNNNNNNSNSSNNNNNSNNNNNNNNSSSSSSNSSNSSSSSSSSSSSSSSSSSSSSESSESSNNSESSNSSSSSESSESSNSSNTSSEEEEESNNNSETSTSSNESSSSSESSNSTTESENESSNSSNNSSNSSSSSNSESSTSSSNSSSSNSTSSSSSNSSSSNNTSNSSSEEEESEEEEEEESNEESSSSSEEEEEENEEEEESEEEESESEESNEEENESNNNSNNNNNSSSSSNNNSNNSSSSSNNNNSSSNSSNENNNESSNNNEENNESSESSNSSSSENSNENTNNENSSNSNNSNNESNSNNNESENSSEENNESNNSENEEEEEESNESESEEESSEESESENEETSNNSESENEEEENNEESNEENEEEEEESNEEEEEEESSEEEESENEESESSEESESEForm MJN 213