Jimmy, I bought a used cabinet table saw that had boxes stored on it in an unheated garage for many years after the man died. It was rusted and pitted so badly I had to sand the top down to get most of the worst rust and pits. It had grooves from rust. Then I had to get it flat again and then I used Johnson paste wax as a protection. Wood slides well over this wax as well. I did use about a gallon of WD-40 as lubricant during the sanding and to clean the rust and metal. I spent a full day getting the top back into shape. That saw never rusted for about a decade, until I sold it and replaced it with a SawStop table saw. Those old Powermatic table saws were built like battleships. Heavy, with a 5 HP motor, it cut through stuff like a hot knife through butter.
