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How do you rebrush aluminium?

post #1 of 6
Thread Starter 
Hey

I've got a brushed aluminium panel that I'm using for my case mod, and I've managed to scratch it up quite badly. The protective cover came off when I had it cut, which left it vulnerable to scratching when I had it folded.
Photo in the spoiler below:


I'm going to have it anodised black, but I need to remove the scratches first. So I figured I need to rebrush it.

But how do I do that? Do I just brush it like I would with a normal plain panel, or do I need to sand it first so that it's no longer brushed before rebrushing?

Also, any tips on how to brush it quickly and effectively would be appreciated.

Thanks.
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post #2 of 6
You would have to sand with some kind of sanding block and maybe use a piece of wood as a guide. If it is not annodized this will be easy.You might not want to use a wire brush on it because it will round the corners of the cut outs. The panel was brushed before it was cut out. You will get the right look with sand paper and a block. Try 120 grit or 220.

If it is annodized use some easy off oven cleaner on it to remove the annodizing. Reason for this is that annodizing is a lot harder than the aluminum and is a big pain to sand as you may find out. IF you are reannodizing it black you will have to remove all the old annodizing or it will be blochy if you don't. Yellow easy off works best! Use gloves and do it outside or in fresh air. Rinse it with warm water. Then do your sanding.
Edited by ice_owl - 1/30/11 at 11:47am
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by ice_owl View Post
You would have to sand with some kind of sanding block and maybe use a piece of wood as a guide. If it is not annodized this will be easy.You might not want to use a wire brush on it because it will round the corners of the cut outs. The panel was brushed before it was cut out. You will get the right look with sand paper and a block. Try 120 grit or 220.
Will sanding it like that just create a new brushed finished without the scratches, or do I need to follow another procedure for brushing it after sanding?
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post #4 of 6
Yes,but you might have to adjust your grit and sanding motion to get the desired effect.Also a 3M scotch-brite sanding pad works wonders for this-after you remove any scratches with the sandpaper use the pad and it will leave a smooth finish.
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post #5 of 6
Thread Starter 
Sweet. Thanks for the info
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post #6 of 6
Sanding it will create a new brushed look. Try using different Grits on the back of the panel until you get the desired look. Use a piece of wood as a guide so you are going in the same direction while sanding.
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