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Oh no my aluminum is rusting badly

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Old 12-18-2016, 08:37 PM
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Oh no my aluminum is rusting badly

No not really.
And aluminum doesn't rust.
I love my 2016 f150s not a single problem.
But made the paranoid few look I am sure.
Merry Christmas and go hug your truck now for being so darn awesome to you☺☺☺
 
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Old 12-18-2016, 09:49 PM
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No it does not rust, it just turns to white powder and developers cracks, moisture is its enemy, calcium chloride and other corrosives used on the roadways are its enemy, if only we could operate off grass runways, we would have it made! Merry Christmas back at you!
 
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Old 12-18-2016, 11:22 PM
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I wonder if a sacraficial zinc anaode could be attached to major body parts to draw the corrosion away from the body and to the anaode. It works for outboard boat motors.
 
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Old 12-18-2016, 11:35 PM
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Aluminum boats have those sacrificial anodes as well, never seen those on heavy trucks or trailers though, unless you consider brake chambers sacrificial!
 
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Old 12-18-2016, 11:57 PM
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Bare Aluminum rapidly forms a passivating layer of Aluminum Oxide. Unlike Ferric Oxide (our ol' buddy, rust), Aluminum Oxide protects the underlying Aluminum. Unless it's oxide is removed and prevented form re-forming, then it goes quickly!

And in design, there is the whole galvanic action issue. There were full-size Fords and Mercs some years that had aluminum rear bumpers, the big ones. They had two isolation pads that fit in between the mounting areas of the bumper, and the two steel frame-ends which were the bumper mounts. They were, or were like, lead sheets. They stuck out way beyond the joint on all 4 sides.
 
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Old 12-19-2016, 12:38 AM
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Originally Posted by j.grif
No it does not rust, it just turns to white powder and developers cracks, moisture is its enemy, calcium chloride and other corrosives used on the roadways are its enemy, if only we could operate off grass runways, we would have it made! Merry Christmas back at you!
Maybe you mean sodium chloride (AKA salt)?
 
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Old 12-19-2016, 12:57 AM
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Originally Posted by GlueGuy
Maybe you mean sodium chloride (AKA salt)?
, no, we have stuff in Michigan that is even more corrosive than sodium chloride, we have magnesium chloride and as mentioned calcium chloride, in addition to various brine solutions.
 
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Old 12-19-2016, 10:30 AM
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Originally Posted by j.grif
, no, we have stuff in Michigan that is even more corrosive than sodium chloride, we have magnesium chloride and as mentioned calcium chloride, in addition to various brine solutions.
Oh wonderful...
 
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Old 12-19-2016, 10:38 AM
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Lots of Chlorides are used to treat roads, salt is only one of them.

I know the thread was made in jest, but I suspect we're going to see actual posts of corrosion issues at some point. We'll see.
 
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Old 12-19-2016, 12:42 PM
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Galvanize the truck. Look like crap but no problems.
 
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Old 12-19-2016, 12:53 PM
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sodium chloride (NaCl), aka salt, dissolves and lowers the freezing point of water, higher concentration = lower freezing point.

calcium chloride(CaCl), aka ice melt, reacts with water and generates a small amount of heat and melts ice and snow.

with a mixture, the CaCl will melt snow and ice,the NaCl will mix with the water and lower the freezing point. I think MgCl can be used the same as CaCl but not sure.

All are corrosive to metals.
 
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Old 12-19-2016, 01:04 PM
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If the aluminum starts rusting, set it on fire. The rust will stop.....

 
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Old 12-19-2016, 03:09 PM
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Originally Posted by Torky2
Bare Aluminum rapidly forms a passivating layer of Aluminum Oxide. Unlike Ferric Oxide (our ol' buddy, rust), Aluminum Oxide protects the underlying Aluminum. Unless it's oxide is removed and prevented form re-forming, then it goes quickly!

And in design, there is the whole galvanic action issue. There were full-size Fords and Mercs some years that had aluminum rear bumpers, the big ones. They had two isolation pads that fit in between the mounting areas of the bumper, and the two steel frame-ends which were the bumper mounts. They were, or were like, lead sheets. They stuck out way beyond the joint on all 4 sides.


Go find a three or four year old Explorer or Mustang and check out the leading edge of their aluminum hood. Virtually every one I've seen has the paint blistering and peeling in several spots. Apparently the problem is that the hood skin is aluminum but the stiffening ribs are steel. One rock chip on the leading edge and the cancer starts.
 
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Old 12-19-2016, 05:24 PM
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F150 hoods have been aluminum since '97. Haven't seen any corrosion issues with them in this part of the country.
 
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Old 12-19-2016, 06:04 PM
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I have many aluminum bodied Peterbilts, aluminum trailers, aluminum helicopters, aluminum boats, and in harsh BC winters.
Corrosion issues=zero!
 

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