I suppose the correct answer is "it depends" [thank you Dewey], but... If it were my shop I would not allow it. My unsubstantiated thinking is that if the saponifier is still on there after final rinse then what else is still on there? Saponifier should be the easiest thing to get off so if it's not coming off then I'd be concerned about other stuff. Also what sorts of conductive paths (hi pot failures) will the saponifier produce should this assembly see high humidity and temperatures? KennyB Ext 43-----Original Message----- From: - bogert [mailto:[log in to unmask]] Sent: Monday, May 05, 2008 3:01 PM To: [log in to unmask] Subject: [TN] Saponifier residue May 5, 2008 I have the following question: If a saponifier is used with a DI cleaning machine to clean PWAs and the cleaning does not remove all traces of the saponifier, is there any concern, including sugsequent exposure, to a humid environment? Any technical reports on this subject? --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------