Chrome Plating Blistering: Serious Cause and Smart Fix

Summary for chrome plating blistering Discussion

Chrome plating on cylinder rod blistering is explained as likely corrosion starting under the coating rather than on the chrome itself. Joey Yan asked why a wheel loader’s cylinder rod, parked outdoors for nearly a year, developed bubbles that later burst and exposed corroded base metal. The reply says chrome is more electrochemically noble than steel, so if the plating has pinholes or porosity, corrosion can begin in the substrate and lift the coating into a blister. The answer also notes that hydraulic oil on a cylinder rod can provide temporary corrosion resistance, so equipment operated regularly may fare better than a machine left exposed to sun and rain after the oil is washed off. The responder suggests checking the operating manual for guidance on periodic operation or corrosion protection during long storage.