Ioan, In addition to the other good answers posted, you also need to keep the exotherms of the potting material in mind. Some potting materials get very hot when reacting. The cooler potting materials have correspondingly longer cure times. For both materials, you also need to keep in mind the CTE effects of the materials under components. Doug Pauls "Tempea, Ioan" <[log in to unmask]> Sent by: TechNet <[log in to unmask]> 09/10/2007 02:07 PM Please respond to TechNet E-Mail Forum <[log in to unmask]>; Please respond to "Tempea, Ioan" <[log in to unmask]> To [log in to unmask] cc Subject [TN] Conformal coating/potting DfA Dear Technos, what would be the Design for Assembly concerns related to products that will be conformally coated or potted? Thanks, Ioan --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------