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Zinc anodes are crucial for the proper maintenance of a boat. They are essentially a metal attachment to the boat’s underwater part, often on a propeller shaft or the propeller.
A zinc anode is designed to be the thing on your boat that corrodes instead of any steel or other metal components of your boat – like the engine and propeller.
Why would you want the metal to do this?
You want to prevent a process called Galvanic Corrosion in your engine and drivetrain.
What is Galvanic Corrosion?
When two different metals physically connect in seawater, an electrical current flows between them like a battery. For this current to exist, one of the metals has to give up pieces of itself.
The reason zinc has to give up pieces of itself is because electrons are created as the metal dissolves, generating the current between the two metals.
Zinc anodes are the unsung hero of protecting your boat’s metal and mechanical equipment.
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