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alexzu
Joined: 12 May 2016
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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 Posted: Tue Apr 04, 2017 3:59 pm Post subject: |
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The purpleish gold is AuAl2 (roughly, it varies some), an intermetallic compound, it makes the gold very brittle (and is typical of black foam pin rot)
That you cannot clean off
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feipoa
Joined: 08 Mar 2011
Posts: 553
Location: Canada
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| Posted: Tue Apr 04, 2017 5:17 pm Post subject: |
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I don't think I see any purple coloured markings. Did you?
Anyone try CLR? |
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