Friggin Cool Rust Removal

The Laser Rust Gun also comes with that big box on wheels... Very interesting

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Looks like it's a thermal laser that is rapidly oxidizing the red iron oxide into black iron oxide. Black iron oxide is still a rust, but unlike the red rust it doesn't spall off and binds strongly to the iron underneath.

This would also be a good way to make black screws and bolts and whatnot.
 
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