Hi Rich - don't know if its helpful but even XY is permeable to vapors - its just a couple of orders of magnitude better than the other typical conformal coatings. Dave On Wed, Jun 14, 2017 at 1:43 PM, Richard Kraszewski < [log in to unmask]> wrote: > Does anyone know if a special coating type would be > required/recommended for a medical Ethylene Oxide sterilization process? > > Of course parylene would likely be the gold standard but it is not an > option in this instance. > > I seem to recall that a past paper from Hunt/NPL supports the theory that > just about all coatings are permeable to vapors . (~ also per 3-11G > group) > > If that is truly the case not sure if it really matters which coating it > is (not AR of course). Reason I am not willing to state that yet is I > wonder if Ethylene Oxide would have any other detrimental effect on > certain classes of coatings such as yellowing, embrittlement, etc. > > Any thoughts would be appreciated > > > Rich Kraszewski > Senior Staff Process Engineer > Plexus Engineering Solutions > > > * * * * * * * * CONFIDENTIALITY NOTICE * * * * * * * * > > This e-mail and any attachments are confidential from Plexus Corp. and may > contain information which is privileged, confidential, and/or protected by > non-disclosure agreements. They are intended solely for the use of the > named addressee(s). . Any unauthorized use or disclosure may be > unlawful. If you are not a named addressee, you must not use, disclose, > retain or reproduce all or any part of the information contained in this > e-mail or any attachments If you have received this transmission in error, > please destroy it and notify us immediately by return e-mail or by calling + > 1 888 208 9005. >