I would like to get some feedback on a device I have been working on. I have a long history in electronics and have been recently testing on my cast iron table tops a device I have designed which uses a sacraficial anode and impressed current to keep your cast iron tops rust free. A piece of zinc (sacraficial anode) is connected to the underside of your cast iron table top. An electronic circuit impresses a low DC voltage and current through the table top and the anode. Without getting into to much depth, the theory behind this is that the anode will corrode and not the cast iron. I removed any wax which I was previously using to keep the rust off, and have had this device on my table saw since october and have no rust or even a haze of rust as of yet. I live in michigan and the winters are terrible on my tools with cast iron table tops. The device seems to work great for condensation and humidity (no rust), but when water is directly splashed on the table, the device seems to slow down the corrosion process but not totally stop it. Is there a market for a device like this out there? Just want some feedback.