Homebrew PCBs

In a message dated 11/27/2003 3:37:15 AM Central Standard Time, 
Johnman@... writes:
The name of the material would suggest tin plating, but there is no 
electro-plating process.  I'm not entirely sure what it is, but I have yet to have one 
of my boards (treated with this stuff) corrode.
It IS tin plating!  There are SOME metals/chemistries that permit 
"non-electroless" plating, i.e., applying the metal WITHOUT the use of DC current.  

Wish there was a way to get that "Tinnit" stuff in larger quantities, AND 
some instructions as to how to increase the "shelf life" (it does seem to "go 
bad", even in a shut bag, in time).  I used only "one bag" one time, as I do 
boards that warrant such so seldom, and it just would NOT work, months later.  
Also, what "good" is the solution after one use?  Will it work months later, if 
left closed?  Didn't seem to "want to"!    Some chemist "in here" please tell 
us!  
Jan Rowland


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