Check the bottom paint or coating for signs of wear and tear, and make sure it is still in good condition.Make sure the rivets are tight and free of corrosion. Rivets are often a weak point in a boat’s hull and can be a source of corrosion.This is a metal fitting that is designed to corrode instead of the metal of the boat. A sacrificial anode can be installed to help protect against corrosion.Inspect your boat regularly for signs of corrosion, especially in areas where water can collect, such as around fittings and rivets and on the bottom paint or coating.They can tell you if the rust is severe and what needs to be done to fix it. If you suspect that your boat has aluminum rust, it’s a good idea to have it inspected by a professional. If you see this, it’s a good indication that the metal is corroding.Īnother sign of aluminum rust is pitting or crusting on the surface of the metal. The first sign of aluminum rust is often a dry powder on the surface of the metal. This form of rust can be tricky to spot, but there are a few things you can look for. Aluminum also does not stick to a magnet (It is non-magnetic). Aluminum hulls are usually a light gray and dull in texture, while steel hulls are relatively shiny. How Do You Know If Your Boat Is Aluminium?Īluminum boats are often identifiable by the color of their hulls. The rate of galvanic corrosion also increases as the difference in electrical potential between the two metals increases. The level of corrosion that takes place is determined by a number of factors, including the type of electrolyte, the pH of the electrolyte, the temperature of the electrolyte, and the relative sizes of the two metals. The metal that corrodes the most is known as the anode, and the metal that corrodes the least is known as the cathode. The electrolyte provides a conductive solution that allows electrons to flow between the two metals, and a chemical reaction takes place that causes the metals to corrode. The process of galvanic corrosion occurs when two dissimilar metals are in contact with each other in the presence of an electrolyte. The electrolyte is the waterline, and the oxygen in the water accelerates the corrosion process. The aluminum boat is the anode, and the steel trailer is the cathode. As this reaction progresses over time, the metal begins to corrode. Corrosion starts with tiny particles on the metal reacting with water molecules. ![]() When aluminum hulls come into contact with water or other elements in seawater, they can corrode. How Aluminum Boats Rust Here’s How Aluminum Boats Rust: Boats are susceptible to corrosion from a number of factors, including the environment, water chemistry, and saltwater exposure. ![]() If you’re a boat owner and an avid boater, then maybe the answer to this question is ‘No!’ You may be surprised at aluminum boats’ seemingly high corrosion levels.ĭespite that fact, Aluminium boat corrosion is an actual risk, and you need to be aware of it. How to Care for Your Aluminium Boat Does Aluminum Boat Rust?
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