Water is the most abundant nutrient in our body and plays an important transmission function in every body cell and tissue. Sixty percent of our body weight is water. The fact that you can live without food for a long period of time, even months, but live only for a few days without water is true.
The addition of zinc, a sacrificial anode, would prevent the iron metal from corroding. According to the table of Standard Reduction Potentials, the standard reduction potential of zinc is about -0.76 volts. The standard reduction potential of iron is about -0.44 volts.
2. Sand the cast iron with a medium-grit sandpaper or steel wool until the paint and rust are gone. You can complete this process by hand, using a circular rubbing motion.Alternately, use an electric sander or a handheld rotary tool with a sanding wheel attachment for tight spaces.ast iron needs a layer of protection, such as a coat of paint, polyurethane, wax or oil, against moisture and humidity. Without such protection the metal quickly rusts. It's important to remove layers of old paint and rust just prior to refinishing so that the new layer of protection can be applied immediately.