Ryan,

I have a significant amount of experience with the white tin (Dexcoat FST)
and I can share the following experiences with you. Surface prep for LPSM is
critical, whether it is our process or the competition. A good pumice scrub/
acid rinse or one of the new oxide alternative processes ( micro-etch) is
mandatory for a wide process latitude. The biggest issue customers find
initially is with the adhesion of many LPSM's. Good chem lab support is also
mandatory (just like immersion gold). I would suggest that you run parts
through your process up to surface finish and the send them out for coating.
This will give you a heads up if there are any issues in your existing
process.

Good Luck,
Chris McGary
Dexter
1800-877-9871 ext209

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