Hi folks, We recently received a batch of 3-layer flex circuits, which were much darker in color from the previous batch received (think copper colored vs. chocolate colored). I was told that the darker batch received a longer bake and that the coloration difference was cosmetic. Since I don't have a lot of experience with flex, I'm looking for input from flex manufacturers/users on whether color differences between batches are common and acceptable. Thanks in advance, Terri --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL 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 ---------------------------------------------------------------------------------