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Post by Shamas on May 7, 2013 6:54:58 GMT
Hey all, So I recently became a proud owner of a Ronin Dojo Pro I'm very happy with the sword, but I noticed when it arrived, after I cleaned it up, that there are a lot of tiny rust spots all over the blade (the blade was also covered in dried oil, I had to use metho to clean it all off) I was just wondering, what's the best method for cleaning these off? Google tells me to use a fine wet-and-dry, but I would rather avoid ruining the blade's finish... In this thread: viewtopic.php?f=19&t=16079aussie-rabbit suggested "crumpled aluminium, warm water with a couple of drops of dish detergent and rub". I never would have thought of that... Would I be correct in assuming that since aluminium is softer than steel, the foil will abrade the rust without touching the steel? Also, Would I be better off using oil rather than water+detergent? Cheers -Shamas
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Post by SlayerofDarkness on May 7, 2013 7:08:39 GMT
I'd use Metal Glo or Mother's Mag- I've used Metal Glo for exactly this purpose for years without a hitch, though many swear by Mother's Mag and it sounds perhaps a touch better. YMMV. HTH! -Slayer
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Post by Shamas on May 7, 2013 7:22:43 GMT
Hrmmm, I didn't think of that either. Sounds good, pretty sure I have some sitting around that I used on my car... I'll give it a shot next weekend! Thanks
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Post by SlayerofDarkness on May 7, 2013 7:28:41 GMT
No problem! Just be sure to do the whole blade, as the areas you polish will end up a tiny bit shinier than the rest if you 'pick and choose' where to apply it. :lol: Best of luck, -Slayer
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Post by frankthebunny on May 7, 2013 13:59:59 GMT
You might also consider having it exchanged for one without any rust, a new sword should not be rusty. One of the reasons it might be this way is possibly a fault in the polish or in the saya so it might have this issue again in the future. If you consider a return/exchange, it should be before you attempt any self repairs. contact the vendor you purchased it from to see what your options are.
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Post by aussie-rabbit on May 8, 2013 16:30:02 GMT
With the now common plastic sleeve over an oiled blade we can hope that this "travelling rust" problem will disappear in time.
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Post by Jeffrey Ching on May 9, 2013 18:24:48 GMT
Definitely return it before messing around with the sword... Unless it was discounted and mentioned in the product description you should receive a sword without oxidation spots.
It has already been mentioned but every modern polishing method will make the blade shiny. Depending on how deep the spots are you'll wipe of the hamon etch and render folding lines invisible... This is the case with sandpaper, anti-rust chemicals and even synthetic polishing stones.
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Post by Lord Cobol on May 10, 2013 0:48:39 GMT
The aluminum foil trick doesn't removes rust, but not by abrasion. Foil's softness works to protect the steel...
From the wikipedia article on aluminum foil "Aluminium foil can be used to remove rust from steel and to polish steel surfaces — by hand by rubbing the steel with aluminium foil dipped in water. The aluminium foil, which is softer than steel, does not scratch the surface. Heat is generated by the rubbing friction, and the aluminium oxidizes, producing aluminium oxide. Aluminium has a more negative reduction potential than iron, and therefore leaches oxygen atoms away from any rust on the steel surface. Aluminium oxide is harder than steel, and the microscopic grains of aluminium oxide create a fine metal polishing compound — smoothing the steel surface to a bright shine."
Works like a charm for me. Didn't mar the blades at all, so I didn't have to re-polish afterwards.
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Post by Shamas on May 10, 2013 6:20:44 GMT
Thanks all I actually live in Australia: the cost of shipping it back to the US for an exchange, plus the wait for all this to happen isn't really worth it if it's a simple fix as described above, plus i've done a little cutting with the sword since I got it, so that probably voids my right to return it lol. For the record the sword does have other minor defects (a few deep scratches on the back of the blade, and some rough scuffing on the saya ) Though from what I hear a few minor issues are to be expected on a sub $300 production blade... It sounds like the Aluminium Foil trick is probably better than the metal-glo... Would that be a fair assessment?
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Post by Shamas on May 10, 2013 6:24:51 GMT
Oh, plus i've had nothing but great service from Ronin Katana, and i'd kinda feel like I was throwing it in his face if I returned a blade due to a little rust and a few minor defects...
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Post by SlayerofDarkness on May 10, 2013 6:31:30 GMT
I believe either should work for your purpose, Shamas. I look forward to trying the aluminum foil idea, but I know Metal Glo and Mother's Mag are workable solutions for sure. -Slayer
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Post by Shamas on May 10, 2013 7:41:49 GMT
I'll probably end up doing both lol, I'll let everyone know how it goes
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Post by aussie-rabbit on May 11, 2013 12:15:57 GMT
Mothers mag polish leaves a protective film, not enough for storage but visitors fingerprints wipe of easily.
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