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April 2001

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TechNet <[log in to unmask]>
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Date:
Mon, 9 Apr 2001 12:41:02 EDT
Reply-To:
"TechNet E-Mail Forum." <[log in to unmask]>, [log in to unmask]
Subject:
Re: funky stuff on white tin
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From:
"<Rudy Sedlak>" <[log in to unmask]>
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Not a whole lot of people clean after white Tin application.  Usually done on
an as-needed basis.  (some people have trouble passing SIR type tests after
immersion Tin)

Dark color may be due to Copper presence.  This could be either thin Tin, or
white Tin bath being contaminated with Copper, and co-deposited.

Rudy Sedlak
RD Chemical Company

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