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What is the best way of derusting a knife blade? Answered

My multitools main blade has started to rust, I have tried using WD-40 but it is not doing very well. The blade is carbon-steel if that helps at all.

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Re-design (author)2011-11-25

There are chemicals that will remove the rust. There are electrical methods. Unless it's very bad I would just use very fine sandpaper or steel wool and polish the rust off. When you're satisfied with the result apply a very small bit of oil and keep the knife clean and dry.

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PotatoCoffee (author)Re-design2011-11-26

Thanks, The rust is not to bad, but it seems to go quite far into the blade so sandpaper probably won't do the job. Anyway thank you for replying, I really appriciate it!

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dreiseratopsBest Answer (author)2011-11-25

Wire brush & sandpaper. You can even sharpen it back up nice with sandpaper :)

Dont be afraid to rinse it with water but dont use WD-40 at the end.
Use 3in1oil or anything labeled lubricating oil or the like. Motor oil is fine.
WD-40 is penetrating oil & if you leave it on there itll rust worse than before.

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PotatoCoffee (author)2011-11-26
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dkop1 (author)2011-11-26

I use wd-40 and some steel wool to remove the rust, then coat the knife in 3-in-1.

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