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Post by haon on Jun 1, 2021 16:28:28 GMT
I have this basically worthless old tanto from japan which is chipped and has black oxidation in the blade...however, I like the habaki. Sadly it has several spots with this green copper oxidation which is poisonous as far as I know, and I'd like to remove it. Possibly without removing the normal dark tome of red and brown which it has gotten over the years. Any tips?
Also, is there a way to get rid of these black pittings of oxidation in the blade?
Best regards
Haon
PS: photos will be added when I get home, but maybe there is some general advise
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Deleted
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Post by Deleted on Jun 1, 2021 17:34:53 GMT
Regarding the copper, I spoke to a friend of mine who is an artist and jeweler that specializes in copper. She recommended using a soft-bristled toothbrush with mild dish soap and warm water. If that doesn't work: ketchup. Ketchup is a paste-like texture, so it will adhere to one spot, and it has a weak acid. You'll have to watch it VERY carefully to ensure it is only removing the green patina and not the other patina.
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Post by Sir Thorfinn on Jun 1, 2021 19:41:51 GMT
Yes, you don't want a shiny ring around it. Though if you completely clean it, there's ways to force the patina back.
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Post by haon on Jun 2, 2021 7:40:24 GMT
Thank you very mich, i got rit of the verdigris. It left a brighter patina where it was removed, but it looks fine and a bit like an old piece that is still being used the intended way. Well, which it basically js
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