so.. what do you do to stop aluminium oxidising?????
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so.. what do you do to stop aluminium oxidising?????
Hi Guys
im doing a pretty substantial re build of my car and due to the fact that it is winter over here i am having trouble with the ally oxidising.. eg engine and gearbox etc..... so what do you use ( if you have the problem)
Geoff
im doing a pretty substantial re build of my car and due to the fact that it is winter over here i am having trouble with the ally oxidising.. eg engine and gearbox etc..... so what do you use ( if you have the problem)
Geoff
#2
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Depends on what parts you are talking about. On aluminum wheels, I use a rub sealer. Engine parts...forget about it. So you may want to clarify what parts.
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Aluminum is one metal which NEVER appears in nature it is ALWAYS combined with something else. Polish it nice and shiney and it immediatly starts looking for something to combine with. Porsche either anodized the wheels (the flat silver or platinum) or painted them. The undercarrage they oiled down with cosmoline to retard corrosion.
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For those parts, you might consider using one of the low-pH spray wheel cleaners on your target pieces. The acid will "brighten" the surface. You'll want to neutralize it after rinsing, then decide what you want to use to preserve it. For the anodized wheels, porsche recommended a thin coating of Vaseline, a petroluem jelly that's translucnet. It seals the surface to prevent oxides from forming too quickly. Diasadvantges are that it can be a little messy, and it washes off fairly easily. Then you go on to clear paint finishes, whick do the job OK for a while. Then the bright metal still starts to go to grey underneath, and you have to strip the paint off to restore the bright metal color again. If you are just concerned about protecting the parts while they are waiting for installation, the vaseline trick might not be bad. If you need a more durable protection for storage, follow the factory's lead and use a wax/parraffin/oil product like the original cosmoline. It's ugly but it works.
Unless you are entering shows with the car and need the bright original finish, aluminum self-protects itself over time. A layer of aluminum oxide will form on the surface. In the absence of other contaminants, the aluminum generally fades to a dull light grey color on its own.
Hope this helps!
Unless you are entering shows with the car and need the bright original finish, aluminum self-protects itself over time. A layer of aluminum oxide will form on the surface. In the absence of other contaminants, the aluminum generally fades to a dull light grey color on its own.
Hope this helps!
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#9
Three Wheelin'
Other manufacturers make similar clearcoats, like Eastwood Diamond Clear. The key is to prep the metal well beforehand.
Matt
#11
Race Car
OK,
Here's a stupid question. We just emptied the valley during an intake refesh on my '88, sprayed a little brake cleaner in there and took off the gease/oil that was in there and the block shines like a mirror? Was the oil and grease sealing the aluminium from oxidizing? If that is the case I would say get a nice coat of oil over all of it with a towel or sponge and call it a day.
Michael
Here's a stupid question. We just emptied the valley during an intake refesh on my '88, sprayed a little brake cleaner in there and took off the gease/oil that was in there and the block shines like a mirror? Was the oil and grease sealing the aluminium from oxidizing? If that is the case I would say get a nice coat of oil over all of it with a towel or sponge and call it a day.
Michael
#13
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#15
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Wax works well on parts that don't get hot. I'm not sure how well it will work on an engine. Theres a product called Zoop that I've seen advertised lately. Maybe check and see if that is high temp.