I have a cast aluminum tender tank on my 1 1/2" scale 7 1/2" gauge locomotive and am looking for something to coat the inside of the water tank with to prevent the oxidation the water is causing. Anyone have any ideas of a good material to use?
Is there an opening large enough to get your hand through? If all the corrode can be scoured off and the surface cleaned to new metal, there is a company; General Magna-Plate that can coat the surface permanently, but is a little on the expensive side. Another possibility is to clean it the same way, then coat the surface with a poylurethane. The surface MUST be chemically clean in both cases to do any good. Any scratch or ding that goes through either coating will cause corrosion to start and will undermine the coating. Simply painting will not do the job more than a few days. Hope this helps.
