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A bit confused about aluminum corrosion
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<blockquote data-quote="Jeffrey" data-source="post: 299121" data-attributes="member: 10686"><p>It is my understanding that bare aluminum will corrode, but will then form a very tight layer of aluminum oxide which will protect against further corrosion. If you clean off the aluminum oxide, the aluminum will corrode a bit more but will then form another layer of protective aluminum oxide.</p><p></p><p>I was talking today at work about wanting to put a false floor on my boat. A guy said that saltwater would get trapped in the small gaps and cause corrosion. I have also seen on this forum about how some people are concerned about the same thing by putting a layer of foam between the hull and fase floor, trapping a film of water.</p><p></p><p>What is there about this that wil result in extra corrosion? Why wouldn't it just form a layer of aluminum oxide and then become passivated?</p></blockquote><p></p>
[QUOTE="Jeffrey, post: 299121, member: 10686"] It is my understanding that bare aluminum will corrode, but will then form a very tight layer of aluminum oxide which will protect against further corrosion. If you clean off the aluminum oxide, the aluminum will corrode a bit more but will then form another layer of protective aluminum oxide. I was talking today at work about wanting to put a false floor on my boat. A guy said that saltwater would get trapped in the small gaps and cause corrosion. I have also seen on this forum about how some people are concerned about the same thing by putting a layer of foam between the hull and fase floor, trapping a film of water. What is there about this that wil result in extra corrosion? Why wouldn't it just form a layer of aluminum oxide and then become passivated? [/QUOTE]
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A bit confused about aluminum corrosion
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