Dow Corning makes some siloxane compounds that acted well as primers for epoxy based compounds. They may have some that work well with AR and/or UR CC's. Suggest you contact them. Rich Kraszewski / PLEXUS -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Doug Schueller Sent: Tuesday, June 16, 2009 8:29 AM To: [log in to unmask] Subject: [TN] Conformal Coat and Solder Coated Outer Layers To all: Any ideas on treatments that can be applied to the solder coated outer layer of a PB to enhance adhesion of UR or AR conformal coating? The outer layer is a solid ground plane with reflowed tin/lead solder. The coated assembly needs to be able to withstand multiple (3 or so) passes through an in-line cleaner using alkaline wash chemistry. Any mechanical treatments or coating application tips would also be appreciated. Thanks in advance. Douglas Schueller Technology Support and Development Manager IPC-Certified EMS Program Manager AbelConn, LLC 763-536-3612 [log in to unmask] www.abelconn.com --------------------------------------------------- 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 -----------------------------------------------------