Not chemistry, but light, specifically a laser, would be the best approach to doing this, especially if the unwanted nomen ink is over copper. > ---------- > From: Furrow, Robert Gordon (Bob)[SMTP:[log in to unmask]] > Reply To: TechNet E-Mail Forum.;Furrow, Robert Gordon (Bob) > Sent: Monday, April 22, 2002 12:44 PM > To: [log in to unmask] > Subject: [TN] Removal of Cured Nomenclature Ink > > Hi TechNet, > > I have been asked what chemical(s) would be required to remove cured > nomenclature ink (also known as silkscreen) from a bare board without > damaging the board itself. I am assuming it is an epoxy ink, but I do not > know the exact formulation. Any input is appreciated. I should know the > exact formulation of the applied nomenclature ink tomorrow, but thought > that > maybe there is a generic answer. > > Thanks, > Robert Furrow > Printed Wiring Board Engineer > Supply Chain Networks > Lucent Technologies > 978-960-3224 [log in to unmask] > > -------------------------------------------------------------------------- > ------- > 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 > -------------------------------------------------------------------------- > ------- > --------------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------------