Before we go off writing specifcations that make the fabrications people spit and swear, I want to remind all that all immersion plating is self-limiting, and when all the substrate is covered, you stop plating, no matter what temperature, or how long you leave it in the plating bath...

Most fabricators have trouble getting 50 microinches of Tin, and 40 is pretty much the standard...

30 is pretty considered pretty thin..
And, no flat finishes are going to perform as well as HASL, if only because of thickness, nevermind superiority of alloy...

Rudy Sedlak
RD Chemical Company



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