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Reply To: | TechNet E-Mail Forum. |
Date: | Wed, 25 Sep 2002 22:59:47 EDT |
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Dan:
There are really three possibilities for you to consider for Tinning
Brass...None are easy and fun.
Perhaps the simplest idea is to use a molten Tin metal dip...which will leave
you thick, long lived, uneven deposits...
The next is immersion Tin plating...There are a lot of good systems out there
right now, as it is a common final finish on PCB pads.. Use one that needs
to be applied hot... this implies that there is a lot of chloride in the
system, and this means a good thick deposit...at least 3X (30+ microinches,
or .75 micron) what you have been getting with the system you described.
And, of course, there is always electroplating.. which usually requires a
pretty elaborate set up, with a couple of pre-clean steps, but which may be
the best/easiest for very thick deposits.
If you want to look at good immersion Tin systems, contact me directly, off
Technet, I may know how to get you a very good one.....:-)
Rudy Sedlak
RD Chemical Company
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