Edwin, There is basic information available at http://nepp.nasa.gov/whisker/background/index.htm While Tin whiskers can still occur when using conformal coating but the use of coating can help minimize the problem. Bill Kasprzak Moog Inc., Systems Group, Process Engineer -----Original Message----- From: David Suraski [mailto:[log in to unmask]] Sent: Monday, July 26, 2004 10:36 AM To: [log in to unmask] Subject: Re: [TN] Tin Whiskers From what I have heard (and please don't ask where I heard it), the short answer is NO - the whisker will grow right through the coating. And the same goes for acrylics and silicones. I've heard that paralenes may be better. Regards, David Suraski AIM +1-401-463-5605 ext. 5210 www.aimsolder.com -----Original Message----- From: Edwin Louis [mailto:[log in to unmask]] Sent: Monday, July 26, 2004 10:20 AM To: [log in to unmask] Subject: [TN] Tin Whiskers Does anyone know whether a Polyurethane conformal coating would inhibit Tin whisker growth or at least contain it? --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 847-509-9700 ext.5315 -----------------------------------------------------