Re: Refinishing/coating Edge/Lo-Pro Trem?
"Anodic films are most commonly applied to protect aluminium alloys, although processes also exist for titanium, zinc, magnesium, niobium, and tantalum. Iron or carbon steel metal exfoliates when oxidized under neutral or alkaline microelectrolytic conditions; i.e., the iron oxide (actually "Ferric hydroxide" or Hydrated iron oxide, also known as rust) forms by anoxic anodic pits and large cathodic surface, these pits concentrate anions such as sulfate and chloride accelerating the underlying metal to corrosion. Carbon flakes or nodules in high carbon steel(e.g. cast iron) may cause an electrolytic potential and interfere with coating or plating. Ferrous metals are commonly anodized electrolytically in Nitric acid, or by treatment with Red Fuming Nitric Acid, to form hard black Ferric Oxide. This oxide remains conformal even when plated on wire and the wire is bent."