Hi Victor - nope and if someone tells you they can, I would suggest walking
away very quickly. A number of the industry committees have chased this
question in terms of grain size, chemistry, carbon content, etc. and have
come away very unsatisfied with the results. The best way to understand a
bright acid tin versus a matte tin plating deposit is to team with the
component supplier/plater to understand the deposition characteristics of
the bath.

Dave Hillman
Rockwell Collins
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On Tue, Jan 3, 2017 at 3:06 PM, <[log in to unmask]> wrote:

> Fellow TechNetters:
>
>     Can I VISUALLY tell the difference between tin plating process, bright
> and matte tin?
>
> Victor,
>