My learned and esteemed colleagues, One of our customers has requested that we conformal coat over a DOW 3145 RTV adhesive used to stake some sensitive components. The specified coating material is MS470-N, a urethane product. Is this a standard practice (to coat over RTV)? We have always conformal coated the PCA and then staked the components using the RTV. Our CC vendor isn't too pleased with this request. Mark Charlton --------------------------------------------------- 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 -----------------------------------------------------