There are lots of different finishes for magnetic wire. You may have gotten a high temp finish instead of what you are use to. Abrasion or high temp solder are the best ways to remove it. KennyB -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Roberts, Jon (SA-1) Sent: Friday, June 18, 2010 7:50 AM To: [log in to unmask] Subject: [TN] REMOVING VARNISH ON TRANSFORMER Have a issue with a very small transformer that the varnish is near to impossible to remove from the end of the wire. In the past we did not have a problem and yes we are going to contract the manufacture but they are closed on Fridays. The specification for the wire to be used is RM5P-CB1-6 and I have been unable to find it searching the internet. Some transformer the varnish did come off with heat from a soldering iron but several were not affected by heat. Scrapping is not what I prefer and even when the operator tried that it was difficult to almost impossible to remove. Question: could it be the incorrect wire used or a defect in the varnish applied or that process to apply the varnish? Just picking your brains on a Friday, Thanks for any suggestion and I will let you know next week what we find out from the manufacture of the transformer. Jon ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 847-615-7100 ext.2815 -----------------------------------------------------