In a message dated 98-01-27 15:43:19 EST, you write:

>
>  What are the drawbacks to using Acetone as a solvent on a fully
>  assembled PWB with surface mount components? The idea is to dip the
>  entire assembly for about 15 minutes....Would the epoxy molding on
>  components absorb the acetone? What about the soldermask?
>
Well, it would be a good way to strip part markings, solder mask, etc.  It
might make it very hard for a competitor to reverse engineer your products if
all the markings are gone. <grin>

Acetone is fairly agressive against most polymers and a 15 minute immersion
would not be reasonable.  My question would be "why acetone and why 15
minutes"?.

In addition, your fire marshals will probably not like such a flammable
material in use and you also face VOC issues.  I can't imagine the assembly
workers clammoring for this either.

Doug Pauls
CSL

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