The corrosive wear occurs in the presence of metals that oxidize or corrode. Fiberglass boats are strong, and do not rust, corrode, or rot. However, they corrode and deform easily. Cracking can allow moisture to penetrate and corrode the reinforcement. Stainless steel is less likely to corrode or stain than mild steel. Coinage metals, such as copper and silver, slowly corrode through use. In a saltwater environment, most ferrous metals and some non-ferrous alloys corrode quickly. Without inhibitors, WFNA will corrode nearly all structural metals. It can corrode some metals and must be stored and transported carefully. However, other metals can corrode in similar ways. However, if the protective coating is compromised it will corrode. Ballast tanks do not corrode uniformly throughout the tank. It does not corrode as easily as steel. Caesium hydroxide is a very strong base, and will rapidly corrode glass. The wire provides connections that will not corrode or creep.