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Tips, Techniques, and Questions -- Technical questions or tips |
2019-08-01, 5:17pm
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tweetysweetie
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Join Date: Jun 30, 2005
Location: Alaska, I was here first!
Posts: 1,854
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Blue Patina
Other than amonia what other chemical can you use on copper metal to produce the lovely blue hue? TIA
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2019-08-01, 7:46pm
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Senior Member
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Join Date: Jun 23, 2005
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Vinegar and salt is supposed to work pretty well. I've had good results with ammonia, salt, and a sprinkle of baking soda.
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Rebecca
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2019-08-02, 7:41am
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tweetysweetie
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Join Date: Jun 30, 2005
Location: Alaska, I was here first!
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Thanks for the advice Rebecca........vinegar and salt will produce the blue color on copper? Hummm, who knew.
I have a friend who lives out of country that likes to use the amonia method but it is illegal to mail any to her, so we were trying to figure out alternative choices of what to use to get that blue color.....
any other suggestions peeps?
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2019-08-02, 3:16pm
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Phill
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Join Date: Mar 21, 2009
Location: Winnebago, MN
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The blue is from copper "rusting" so acids will speed up the 'rusting' which is oxidizing the copper.
There are copper colored water pipes that have alloys added to keep them from rusting like that so look for stuff labeled 'soft'.
The small diameter rolls can make nice bead accents if you take the time to round over the sharp ends with a file.
Once you get the colors you want you will want to lacquer or varnish them to keep from changing due to skin oils from wearing and handling.
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2019-08-02, 3:52pm
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tweetysweetie
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Join Date: Jun 30, 2005
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thanks for your input/info speed!
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I am NOT the authority on anything/everything, but as old as I am... and given the mistakes I've made? I've got a jump on most as to what IS right and what WON'T work!! ~CWeaver 2006
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2019-08-02, 3:54pm
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Senior Member
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Join Date: Mar 28, 2016
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Just put a piece of cloth soaked with vinigar/solt in a small container. Put the copper or brass piece on top of cloth face up. Close the container to keep the vapours inside. You will see beautiful patina within few hours.
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2019-08-05, 1:18pm
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tweetysweetie
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Join Date: Jun 30, 2005
Location: Alaska, I was here first!
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Larysa, using this method will get the blue results?? fingers crosssed and thanks for sharing
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I am NOT the authority on anything/everything, but as old as I am... and given the mistakes I've made? I've got a jump on most as to what IS right and what WON'T work!! ~CWeaver 2006
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2019-08-14, 5:54pm
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Senior Member
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Join Date: Mar 28, 2016
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Sorry, did not see it earlier.
It's more green than blue for brass, emerald green patina.
I just did not try it on copper.
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