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#1 |
Member
Join Date: Jun 2008
Location: The Sharp end
Posts: 2,928
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Just wondered, anyone got this stuff on brass or silver? Does it eat into them or affect them?
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#2 |
Vikingsword Staff
Join Date: Nov 2004
Posts: 6,287
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It blackens Silver, it seems to polish back up okay .
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#3 | |
Member
Join Date: Jun 2008
Location: The Sharp end
Posts: 2,928
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I take it that it will do bad things to brass, isn't it used to disolve/etch brass sheets? |
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#4 |
Member
Join Date: Dec 2004
Location: comfortably at home, USA
Posts: 432
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Yes, it is used to etch copper (brass is mostly copper) in printed circuit boards.
I wouldn't recommend using FeCl3 on brass. Rich |
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#5 | |
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Join Date: Oct 2007
Posts: 2,818
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Gav |
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#6 | |
Member
Join Date: Jun 2008
Location: The Sharp end
Posts: 2,928
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OMG! That would be a bit of an 'oops' moment! |
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#7 |
EAAF Staff
Join Date: Dec 2004
Location: Louisville, KY
Posts: 7,200
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This also depends on the strength of the acid. If dlluted say by half, then the damage is controlled. I have etched by half strength before and less, and it has not eaten into the brass or silver. Mind you, it was not on long at all.
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#8 |
Member
Join Date: Dec 2004
Location: Ann Arbor, MI
Posts: 5,503
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Sounds like a good way to age brass things artificially.
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#9 |
Member
Join Date: Jul 2005
Location: Tallahassee, FL
Posts: 131
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Dont forget, it will dissolve things into its own solution. So if you have an etchant tank of FeCl you use for blades, then use it for a copper article, don't be surprised when the next blade you etch comes out lightly plated in copper.
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#10 |
EAAF Staff
Join Date: Dec 2004
Location: Louisville, KY
Posts: 7,200
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And for that reason you use other acids to age brass......
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#11 | |
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Join Date: Aug 2009
Posts: 338
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#12 |
Member
Join Date: Feb 2006
Posts: 637
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Ferricc will go thru the tape. Any nail polish will work or wax
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#13 |
EAAF Staff
Join Date: Dec 2004
Location: Louisville, KY
Posts: 7,200
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The acid does not react to the acrylic in the nail polish or the wax.
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#14 |
Vikingsword Staff
Join Date: Nov 2004
Posts: 6,287
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Wax would seem to be the traditional resist medium .
Easy clean up . |
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#15 |
Member
Join Date: Oct 2007
Posts: 2,818
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Wax was the traditional method seem on most European weapons when acid etched scrolls etc were applied to the blades, also a good medium to work with.
Gav |
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