How to make soda pop aluminum look worn out?

I've read that aluminum doesn't rust, and that it can be corroded but that it doesn't really make it look worn out/old but makes white blotches. I need a solution to make it look worn out, doesn't need to be a fast process though.

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If it's painted. Attack it with everything you've got. Scuff out random parts of it with sandpaper/steel wool. Very gently rub all over with a medium grit to take some of the shine off of the paint. You could also try crumpling the can and uncrumpling it, but you might tear it up in the process. Dirt and stains will also be handy. Stick some wet coffee grounds to it and leave it for a few hours. It should discolor the paint. If it isn't painted... describe the project and the look you're going for. We can help.
Grujah (author)  DELETED_GuardianFox8 years ago
I'm trying to make something like this:

but with soda pop aluminum. Only the inner, non-pained part of the can is visible, and thats what I need to look worn out.
Okey doke. Do lots of random scuffs with rough sandpaper or a file. Try some deep directional gouges like you might see from a glancing blow of a weapon. You can probably use google image search to find examples of dammaged armor for reference. For dirt / age: Get some cheap acrylic black, rust, and dark brown color hobby paints. In separate containers, mix some of each color with 50% water. Starting with the watered down black, rub it into scuffs and scratches and rivets with a rag. Then wipe it off gently with a clean rag, leaving some black in and around all the scratches and around rivets. Let this layer dry a bit and come back. Use the brown mixture in much the same way. This time, do it randomly in spots instead of all over. Blot it up with a bunched-up rag, taking care to leave a few streaks and blotches. Let it dry. Next do the same for the rust-colored paint. Again, do it randomly but avoid covering up the brown layer. Let it dry You can add some detail to the gouges and scuffs by lightly dabbing more watered down rust-color along the outside of the gouges with an old worn out paintbrush (as in, the uglier the brush the better the pattern). If you've got an adjustable spray bottle that you can use for this, water down the rust-color a bit more and spray it once or twice on your project in both fine mist and a larger mist. You're not aiming for dripping wet, but a few drips will probably add to the effect. Note, oil paints are better for metal projects like this, but I choose acrylics for ease of use. You can get very creative with your project, and Im only giving you ideas... there's a lot more you can do with paints than any one answer can give you. Your milage may vary... so practice on scrap first!!!
lemonie8 years ago
Remove the paint/lacquer and treat with domestic bleach. L
frollard8 years ago
'rusting' is the oxidizing of iron. Aluminum gets an oxide coating, white, aluminum oxide. It won't get a rust colour naturally. What exactly do you mean by worn out? If you scrub it with steel wool, it'll both get scuffed up, and get tiny particles of steel on it. If you get it wet, the particles will rust, leaving a reddish tinge in the cracks.