I picked up several switches FasTrack switches and track sections cheap, with varying degrees of tarnish, areas where tinplate appeared to be gone, and areas of light rust and minor pitting. Soaked them in a Rubbermaid container full of Evaporust for a few hours, and gently brushed offending areas with an old toothbrush. I rinsed the Evaporust off with isopropyl alcohol, as i did not want to use water and encourage additional corrosion, and dried with compressed air. Neither plastic nor paint were affected. While the tinplate is not shiny, they rust and oxidation is gone and they work fine.
Jim
