Purple?! We just finished running a batch of 15 PCBs through reflow and noticed on 2 of them, the silk screen changed from white to a very even shade of semi-dark purple. The change was uniform across the entire board. The boards were not the first or last ones through the reflow, no changes were made to the profile. Contacted the PCB house and they said they have never seen anything like it. Any ideas?? --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------