I would like to draw on the experience of others who have may have used an OSP coating with an aqueous wash process. The material is Entek Plus CU-106A and was specified for boards intended for a no-clean process. The board will sees two passes thru a surface mount line plus some hand soldering of thru-hole parts. My questions: 1. Is this coating compatible with a water soluble flux (Alpha WS609 paste) process with cleaning in 130 degree F DI water (in-line cleaner, no chemistry). Keep in mind it will go thru the cleaner at least three times (two surface mount and one thru-hole pass.) 2. Is OSP in general compatible with aqueous cleaning or is it primarily designed for a no-clean process? Thanks in advance for all help. ========================= Bob Barr Manufacturing Engineering Formation, Inc. ========================= --------------------------------------------------- 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 -----------------------------------------------------