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Old 11th September 2009, 09:28 PM   #1
Atlantia
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Default FeCl affects on non ferrous metals
Just wondered, anyone got this stuff on brass or silver? Does it eat into them or affect them?
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Old 11th September 2009, 09:32 PM   #2
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It blackens Silver, it seems to polish back up okay .
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Old 11th September 2009, 10:33 PM   #3
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Originally Posted by Rick
It blackens Silver, it seems to polish back up okay .
Ah, thanks.
I take it that it will do bad things to brass, isn't it used to disolve/etch brass sheets?
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Old 11th September 2009, 10:54 PM   #4
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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.

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Old 12th September 2009, 03:20 AM   #5
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Quote:
Originally Posted by Rich
Yes, it is used to etch copper (brass is mostly copper) in printed circuit boards.
I wouldn't recommend using FeCl3 on brass.

Rich
Neither would I, I have heard of stories when people have used it on Chinese Jian with the seven star inlay, it has eaten the inlay away. From memory, Josh or Rick some time back recommended that clear nail polish be applied to any any inlay before using it.

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Old 12th September 2009, 08:03 PM   #6
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Quote:
Originally Posted by freebooter
Neither would I, I have heard of stories when people have used it on Chinese Jian with the seven star inlay, it has eaten the inlay away. From memory, Josh or Rick some time back recommended that clear nail polish be applied to any any inlay before using it.

Gav

OMG! That would be a bit of an 'oops' moment!
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Old 23rd September 2009, 02:41 AM   #7
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Quote:
Originally Posted by freebooter
Neither would I, I have heard of stories when people have used it on Chinese Jian with the seven star inlay, it has eaten the inlay away. From memory, Josh or Rick some time back recommended that clear nail polish be applied to any any inlay before using it.
Is this an effective way to keep areas you don't want etched in their unetched state? Would taping off the areas be a better option or would the etchant just eat away at the tape?
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