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Anodized Aluminum

post #1 of 7
Thread Starter 
Anyone have any tips on touching up or refinishing an anodized aluminum case. Similiar to the brushed effect that comes form the factory on the Lian Li cases.

I have heard that oven cleaner will remove it, and to sand it off with about 150 grit paper I am just looking for some input on the matter so I can make an informed decision.


Thanks

-MAC
post #2 of 7
Anodizing of aluminum is very similar to rusting (on steel). They're both oxidation, reacting with Oxygen, except the rust falls off of steel (exfoliates), and it doesn't on aluminum. Anodizing aluminum chemically ( as opposed to just waiting until it air oxidizes) forms a very hard protective layer of oxidized aluminum on the surface, the thickness (and color) of which can be controlled in the anodizing process.

If you remove the anodized layer from aluminum, wha';s left will be soft (like aluminum is) and will slowly oxidize again, unless the surface is coated (to prevent oxidation).
Edited by billbartuska - 1/20/13 at 7:23pm
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
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Logiteck G400s none 
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post #3 of 7
Are you asking how to touch up scratches in the color or how to completely refinish an entire surface?

For touch up, I use sharpies that are close in color. Unless it is an enourmous gouge, it hides flaws well.

As for refinishing an entire surface, that is a much longer process involving lots of chemicals.
post #4 of 7
For a fully refinished surface, take it to a professional anodizer. They can have it stripped. They can also do a brushed surface on it, prep it, and anodize the color you want it.
post #5 of 7
Thread Starter 
Thanks for the input but I am trying to remove it, I want to remove it, sand it, prime it and just paint it with no finish.

-MAC
post #6 of 7
I'd just give it a light sanding, then prime and paint. It can be done over the anodizing without fully stripping it. The anodizing actually protects the aluminum.
post #7 of 7
Use Caustic soda, the anodizing just wipes off.
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MILSPEC II
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| LUMO |
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CLoS3 IMPACT
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CPUMotherboardGraphicsGraphics
5820k X99m WS 980ti strix 980ti strix 
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KLEVV Cras DDR4  3tb Red Corsair 600w SFX + 450w SFX Caselabs BH4 
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Be Quiet Dark Power 850 InWin D Frame Mini 
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