... in used secondary zinc. A third, declining method is to use low Z5 Grade Zinc.[2 ... Other modern techniques have largely replaced hot-dip for these sorts of roles. This includes electrogalvanizing, ... , French chemist Paul Jacques Malouin described a method of coating iron by dipping it in molten ... , French chemist Stanislas Sorel obtained a patent for a method of coating iron with zinc, after first ...