Rust removal with coke.

T

TouchOfRed

Joined
Aug 6, 2013
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390
Hey !

I have a Brous Mini Division with a D2 blade, and i got some smal ruststains on it, i tried to rub it with WD40 etc, but then i read Coke.
So i tried putting the blade in a glass with coke over the night, and it worked. Great, but. Where the coke was soaking the blade, there is a darker color on the blade.
Its not something you can miss..

There are people interested in buying it, so i need to polish the blade somehow, but how do i do that whitout messing up the satin finish? I tried some Aceton, but it did nothing..

Help please ! Thanks

I hope the thread is in the correct part of the forum.
 
I have limited experience with knife blades, but quite a bit with putters--yeah the golf clubs. I have done some blades that in fact had satin finish on them, where I used Simichrome polish, or Flitz and the blades got their color back, but were probably a little brighter than the original finish...all in all I don't think I'm steering you far wrong to say try to wipe the blade down with some Simichrome or some Flitz.

Let us know how you end up.
 
Yeah, I think Simichrome or Flitz, and some elbow grease, should take the oxide off (assuming that's the dark stain left). So long as the Coke didn't actually etch the steel, it should work. If the steel is etched (pitted), it'd likely need some sanding to smooth it out again.


David
 
The solutions mentioned should fix it right up. What happened is the carbonic acid in the Coke forced a patina on the section of the blade on which it was. You could scrub it off, or, you could always patina the rest of it.
 
I have been using coke to remove rust on putters for years and use it to remove rust on multitools. It will sometimes leave a slight discoloration, but I would not say it is a viable option to force a patina at all.
 
I live in Sweden guys, so im not sure we have Simichrome or Flitz, but ill check those out and try to find a equivalent to it. Thanks guys :)

Sorry for the misunderstanding, its not like a patina. Sorry guys.
Maybe if you leave it for days it might get darker.. But i dont know.

Thanks again guys !
 
Try some vinegar. If that fails, try making a paste out of sodium bicarbonate/baking soda and gently polishing it out. One of these will probably be a good bet.
 
TouchOfRed said:
I live in Sweden guys, so im not sure we have Simichrome or Flitz, but ill check those out and try to find a equivalent to it. Thanks guys :)

Sorry for the misunderstanding, its not like a patina. Sorry guys.
Maybe if you leave it for days it might get darker.. But i dont know.

Thanks again guys !
Click to expand...

I'd think you should be able to find some Simichrome, at least. It's made in Germany, so I'd think it would be somewhat easier to find in Europe. It may also be found under the 'Happich' name (see link below). There might also be some other 'pink' polishing pastes under other brand names, and they might be the same stuff. I have a tube of a different brand, marketed by United Cutlery, that looks, smells (like ammonia) and performs just like Simichrome. Also happens to be German-made, as well.

http://www.simichrome-polish.com/


David
 
Obsessed with Edges said:
I'd think you should be able to find some Simichrome, at least. It's made in Germany, so I'd think it would be somewhat easier to find in Europe. It may also be found under the 'Happich' name (see link below). There might also be some other 'pink' polishing pastes under other brand names, and they might be the same stuff. I have a tube of a different brand, marketed by United Cutlery, that looks, smells (like ammonia) and performs just like Simichrome. Also happens to be German-made, as well.

http://www.simichrome-polish.com/



David
Click to expand...
Okey, thanks for your input man. :)
I did found this. Which are used to polish chrome. And thats what i need right?
5454.jpg
 

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TouchOfRed said:
Okey, thanks for your input man. :)
I did found this. Which are used to polish chrome. And thats what i need right?
5454.jpg
Click to expand...

I seem to recall seeing some positive comments about Autosol polish around here, for stropping and/or other polishing tasks. Assuming so, that should work fine, I'd bet.


David
 
Coke contains phosphoric acid and D2 is barely a stainless steel. You may have some trouble removing the stain with a polish for chrome. Flitz may work better, but it could take some considerable effort.
 
brownshoe & DocT are right. The phosphoric acid in the coke gave your steel a patina, similar to bluing a gun. It will be hard to polish off, and that much polishing will surely change the appearance of the blade. Another acid (acetic acid in vinegar) will likely make the patina disappear. Soak for 5-10 minutes at a time monitoring closely.

Since you seem to be the type to go all out, diluted muriatic acid (HCl) will work much faster. Most toilet bowl cleaners have significant muriatic acid in them. Be careful, rinse well, and neutralize afterward with a baking soda solution.

Good luck.
 
Most toilet bowl cleaners have sulphuric acid, not muriatic.
Using a polish like Simichrome will brighten the metal. It needs to be applied with a brush-like a toothbrush and gently worked in, then removed for satin or blasted surfaces.
Polish with a cloth and more pressure for mirrored surfaces.
 
Bill, I suspect you're thinking about drain openers, not toilet bowl cleaners. Check your labels. Most are 9-12% hydrochloric, "The Works" from a dollar store is 20%.
 
I gave a D2 knife a seriously dark patina using vinegar. I don't understand how it would remove an acid patina, IMO vinegar would darken it further.
 
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