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Galvanization
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==Protective action== The zinc coating, when intact, prevents corrosive substances from reaching the underlying iron.<ref>{{cite web |title=How to Galvanize Metal to Protect Pipes |url=https://www.appmfg.com/blog/how-to-galvanize-metal-to-protect-pipes |website=www.appmfg.com |access-date=3 February 2022 |language=en}}</ref> Additional [[electroplating]] such as a [[chromate conversion coating]] may be applied to provide further [[Passivation (chemistry)#Surface passivation|surface passivation]] to the substrate material.<ref>{{cite journal |last1=Magalhães |first1=A.A.O |last2=Margarit |first2=I.C.P |last3=Mattos |first3=O.R |title=Electrochemical characterization of chromate coatings on galvanized steel |journal=Electrochimica Acta |date=July 1999 |volume=44 |issue=24 |pages=4281–4287 |doi=10.1016/S0013-4686(99)00143-7 }}</ref>
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